| 1. |
- Akin, Erdal, et al.
(författare)
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Segment Anything Model (SAM) Meets Object Detected Box Prompts
- 2024
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Ingår i: 2024 IEEE International Conference on Industrial Technology (ICIT). - : Institute of Electrical and Electronics Engineers (IEEE). - 9798350340266 - 9798350340273
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Konferensbidrag (refereegranskat)abstract
- Segmenting images is an intricate and exceptionally demanding field within computer vision. Instance Segmentation is one of the subfields of image segmentation that segments objects on a given image or video. It categorizes the class labels according to individual instances, ensuring that distinct instance markers are assigned to each occurrence of the same object class, even if multiple instances exist. With the development of computer systems, segmentation studies have increased very rapidly. One of the state-of-the-art algorithms recently published by Meta AI, which segments everything on a given image, is called the Segment Anything Model (SAM). Its impressive zero-shot performance encourages us to use it for diverse tasks. Therefore, we would like to leverage the SAM for an effective instance segmentation model. Accordingly, in this paper, we propose a hybrid instance segmentation method in which Object Detection algorithms extract bounding boxes of detected objects and load SAM to produce segmentation, called Box Prompted SAM (BP-SAM). Experimental evaluation of the COCO2017 Validation dataset provided us with promising performance.
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| 2. |
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| 3. |
- Boudreau, Shellie A., et al.
(författare)
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Features of cortical neuroplasticity associated with multidirectional novel motor skill training: a TMS mapping study
- 2013
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Ingår i: Experimental Brain Research. - : Springer Science and Business Media LLC. - 0014-4819 .- 1432-1106. ; 225:4, s. 513-526
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Tidskriftsartikel (refereegranskat)abstract
- Given the evidence that the primary motor cortex (MI) consists of subpopulations of upper motor neurons tuned to different directional parameters of a motor movement, this study hypothesized that novel motor skill training involving either a bidirectional or more complex multidirectional tongue-typing movement should produce distinct training-related features of tongue MI neuroplasticity in humans. Novel motor skill training consisted of tongue typing using custom-made intra-oral keypads for 30-min over two consecutive days. The bidirectional keypad consisted of three sensors positioned along the upper palatal midline as a 3 x 1 array, whereas the multidirectional keypad consisted of nine sensors arranged as a 3 x 3 array that was centred along the upper palatal midline. Each sensor corresponded to one letter and participants were asked to type sequences of letters by accurately placing the tongue over the correct sensor. Before and after each training session, excitability of the tongue MI was assessed with transcranial magnetic stimulation (TMS)-motor evoked potentials (MEPs) over 13 motor map sites and TMS-MEP stimulus-response curves were constructed for the first dorsal interosseous (FDI, as an internal control). Tongue-typing performance improved within and across training days for both groups; although bidirectional training displayed greater success. Bidirectional and multidirectional training were associated with increases and decreases in a number of cortical motor map sites from where tongue activity could be evoked, however; multidirectional training was associated with a greater number of cortical motor map sites with increased excitability and a shift in the centre of gravity of the motor map. No effects of training were found on the FDI TMS-MEP stimulus-response curves. This study revealed distinct training-related features of tongue MI neuroplasticity and proposes that a greater amount of functionally related neuronal populations may be 'trained' by the inclusion of different and more complex directional parameters within a novel motor task.
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| 4. |
- Caltenco, Héctor A., et al.
(författare)
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Designing interactive systems for balance rehabilitation after stroke
- 2017
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Ingår i: TEI 2017 - Proceedings of the 11th International Conference on Tangible, Embedded, and Embodied Interaction. - New York, NY, USA : ACM. - 9781450346764 ; , s. 511-516
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Konferensbidrag (refereegranskat)abstract
- This paper presents four different tangible interactive prototypes designed to support the continuation of balance rehabilitation at home. The interactive prototypes are designed to provide a more enjoyable and experience when performing balance rehabilitation exercises. Early results from preliminary tests with stroke survivors and rehabilitation professionals are promising. The aim of the designs is to allow people at different levels of rehabilitation to engage into balance training and perform the exercises according to their current skills.
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| 5. |
- Caltenco, Héctor, et al.
(författare)
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Co-designing wearable technology together with visually impaired children
- 2016
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Ingår i: International Journal of Mobile Human Computer Interaction. - 1942-390X. ; 8:4, s. 68-84
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Tidskriftsartikel (refereegranskat)abstract
- This paper presents the process and results of a set of studies within the ABBI EU project, with the general aim to co-design wearable technology (an audio bracelet) together with visually impaired children, starting at a young age. The authors discuss user preferences related to sounds and tactile materials and present the results of a focus group with very young visually-impaired children under the age of 5, together with their parents. They find that multisensory feedback (visual, tactile/haptic, auditory) is useful and that preferences vary - also the drastic and potentially unpleasant sounds and materials may have a role. Further studies investigate the possibilities of using the ABBI wearable technology for social contexts and games. In a series of game workshops children with and without visual impairments created games with wearable technology employing very simple interactivity. The authors report the created games, and note that even with this simple interactivity it is possible to create fun, inclusive and rich socially co-located games.
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| 6. |
- Caltenco, Héctor, et al.
(författare)
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Co-Designing wearable technology together with visually impaired children
- 2018
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Ingår i: Wearable Technologies : Concepts, Methodologies, Tools, and Applications - Concepts, Methodologies, Tools, and Applications. - : IGI Global. - 9781522554851 - 152255484X - 9781522554844 ; , s. 314-332
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Bokkapitel (refereegranskat)abstract
- This paper presents the process and results of a set of studies within the ABBI EU project, with the general aim to co-design wearable technology (an audio bracelet) together with visually impaired children, starting at a young age. The authors discuss user preferences related to sounds and tactile materials and present the results of a focus group with very young visually-impaired children under the age of 5, together with their parents. They find that multisensory feedback (visual, tactile/haptic, auditory) is useful and that preferences vary - also the drastic and potentially unpleasant sounds and materials may have a role. Further studies investigate the possibilities of using the ABBI wearable technology for social contexts and games. In a series of game workshops children with and without visual impairments created games with wearable technology employing very simple interactivity. The authors report the created games, and note that even with this simple interactivity it is possible to create fun, inclusive and rich socially co-located games.
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| 7. |
- Caltenco, Héctor, et al.
(författare)
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Designing for engagement : tangible interaction in multisensory environments
- 2014
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Ingår i: NordiCHI '14: Proceedings of the 8th Nordic Conference on Human-Computer Interaction: Fun, Fast, Foundational. - New York, NY, USA : ACM Digital Library. - 9781450325424 ; , s. 1055-1058
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Konferensbidrag (refereegranskat)abstract
- The pedagogical use of multisensory environments (MSE/Snoezelen) addresses the fundamentals of engagement in the world through rich, wondrous and sensuous experiences. Despite the diversity of artefacts and materials used in these practices, interactive designs are few, screen-centric or limited to simplistic behaviour.Twenty-four children with profound developmental disabilities from three MSE institutions have together with us and pedagogues explored potentials in interactivity for MSE. From a suite of 17 interactive designs, we will describe the three we will demo.
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| 8. |
- Caltenco, Héctor, et al.
(författare)
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Enhancing Multisensory Environments with Design Artifacts for Tangible Interaction
- 2012
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Ingår i: International Workshop on Haptic and Audio Interaction Design. ; , s. 45-47
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Konferensbidrag (refereegranskat)abstract
- Even though multisensory environments (MSE) incorporate artifacts and technology to provide sensory stimuli, most of these artifacts are non-interactive. Twenty-four children with profound developmental disabilities from three MSE institutions have been involved in a research study. A handful of interactive design artifacts, which have been developed as a tool for ideation and to enhance the use of MSE by promoting children’s engagement are presented. With these artifacts the children have shown us a vast topology of interaction and bodily engagement, showing a potential for haptic and audio interactive design fields to contribute to a more participatory MSE practice.
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| 9. |
- Caltenco, Héctor, et al.
(författare)
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On the tip of the tongue: Learning typing and pointing with an intra-oral interface
- 2014
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Ingår i: Disability and Rehabilitation: Assistive Technology. - : Informa UK Limited. - 1748-3115 .- 1748-3107. ; 9:4, s. 307-317
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Tidskriftsartikel (refereegranskat)abstract
- Purpose: To evaluate typing and pointing performance and improvement over time of four able-bodied participants using an intra-oral tongue-computer interface for computer control. Background: A physically disabled individual may lack the ability to efficiently control standard computer input devices. There have been several efforts to produce and evaluate interfaces that provide individuals with physical disabilities the possibility to control personal computers. Method: Training with the intra-oral tongue-computer interface was performed by playing games over 18 sessions. Skill improvement was measured through typing and pointing exercises at the end of each training session. Results: Typing throughput improved from averages of 2.36 to 5.43 correct words per minute. Pointing throughput improved from averages of 0.47 to 0.85 bits/s. Target tracking performance, measured as relative time on target, improved from averages of 36% to 47%. Path following throughput improved from averages of 0.31 to 0.83 bits/s and decreased to 0.53 bits/s with more difficult tasks. Conclusions: Learning curves support the notion that the tongue can rapidly learn novel motor tasks. Typing and pointing performance of the tongue-computer interface is comparable to performances of other proficient assistive devices, which makes the tongue a feasible input organ for computer control.
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| 10. |
- Caltenco, Héctor, et al.
(författare)
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The Impact of Function Location on Typing and Pointing Tasks With an Intraoral Tongue-Computer Interface
- 2014
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Ingår i: International Journal of Human-Computer Interaction. - : Informa UK Limited. - 1532-7590 .- 1044-7318. ; 30:4, s. 267-277
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Tidskriftsartikel (refereegranskat)abstract
- Intraoral target (typing) and on-screen target (pointing/tracking) selection tasks were performed by 10 participants during 3 consecutive day sessions. Tasks were performed using 2 different intraoral sensor layouts. Reduction of undesired sensor activations while speaking as well as the influence of intraoral temperature variation on the signals of the intraoral interface was investigated. Results showed that intraoral target selection tasks were performed better when the respective sensor was located in the anterior area of the palate, reaching 78 and 16 activations per minute for repetitive and "unordered" sequences, respectively. Virtual target pointing and tracking tasks, of circles of 50, 70, and 100 pixels diameter, showed no significant difference in performance, reaching average pointing throughputs of 0.62 to 0.72 bits per second and relative time on target of 34% to 60%. Speaking tasks caused an average of 10 to 31 involuntary activations per minute in the anterior part of the palate. Intraoral temperature variation between 11.87 degrees C and 51.37 degrees C affected the sensor signal baseline in a range from -25.34% to 48.31%. Results from this study provide key design considerations to further increase the efficiency of tongue-computer interfaces for individuals with upper-limb mobility impairments.
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| 11. |
- Caltenco, Héctor, et al.
(författare)
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TongueWise : tongue-computer interface software for people with tetraplegia
- 2010
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Ingår i: International Conference of the IEEE Engineering in Medicine and Biology Society. - 1557-170X. - 9781424441235 ; 32, s. 4534-4537
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Konferensbidrag (refereegranskat)abstract
- Many computer interfaces and assistive devices for people with motor disabilities limit the input dimensionality from user to system, in many cases leading to single switch interfaces where the user can only press one button. This can, either limit the level of direct access to the functionalities of the operating system, or slow down speed of interaction. In this paper we present TongueWise: a software developed for a tongue computer interface that can be activated with the tip of the tongue and that provides direct input that covers most of the standard keyboard and mouse commands.
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| 12. |
- Caltenco, Héctor, et al.
(författare)
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Understanding Computer Users With Tetraplegia: Survey of Assistive Technology Users
- 2012
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Ingår i: International Journal of Human-Computer Interaction. - : Informa UK Limited. - 1532-7590 .- 1044-7318. ; 28:4, s. 258-268
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Tidskriftsartikel (refereegranskat)abstract
- An online survey in the form of a questionnaire was conducted to obtain the opinion of computer users with tetraplegia on their current computer interfaces and to assess desirable applications for future independent control using assistive devices. The survey included questions related to information about the respondents' injury/disease, everyday activities and social life, electronic devices and computer programs, evaluation of computer interfaces, and desirable applications for assistive devices. The survey was distributed via tetraplegia associations, magazines, and Internet forums mainly in Denmark and Sweden, but also through other European and American associations. Thirty-one completed questionnaires were collected from individuals with spinal cord injury and other neuromuscular diseases that resulted in tetraplegia. Respondents evaluated gaze and head trackers; speech recognition systems; chin, mouth, and hand joysticks; sip and puff interfaces; and typing sticks. Most interfaces were evaluated in a range from neutral to good. Users expressed a desire for applications to independently control wheelchairs, television sets, doors, and windows. This is, as far as is known, the first study that compares a wide range of current commercial computer interfaces that have been used as part of the users' everyday lives. The answers are useful for designing and developing alternative computer interfaces and assistive devices and for computer-interface users to identify a computer-interface fitting more to his or her needs.
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| 13. |
- Chávez, Alfredo, et al.
(författare)
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Autonomous wheelchair for patients with severe motor disabilities
- 2013
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Ingår i: 10th International Conference on Informatics in Control, Automation and Robotics, ICINCO. - : SciTePress - Science and and Technology Publications. - 9789898565716 ; 2, s. 93-101
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Konferensbidrag (refereegranskat)
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| 14. |
- Chavez, Alfredo, et al.
(författare)
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Comparison of different powered-wheelchair control modes for individuals with severe motor impairments
- 2014
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Ingår i: Proceedings of the 11th International Conference on Informatics in Control, Automation and Robotics. - 9789897580406 ; 02, s. 353-359
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Konferensbidrag (refereegranskat)abstract
- This paper presents the preliminary evaluation of different powered-wheelchair control modes for individuals with severe motor impediments. To this end, a C400 Permobil wheelchair has been updated with a control command communication interface and equipped with a scanning laser sensor to carry out the automation algorithms that are part of the robot operating system framework. A pilot test was performed with three different modalities; hand-joystick mode, tongue-joystick mode and autonomous mode. The results of the tests have proven the feasibility of using a power wheelchair either autonomously or controlled by users interchangeably in order to continue the development towards a better user/wheelchair shared-control paradigm.
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| 15. |
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| 16. |
- Fortmann, Jutta, et al.
(författare)
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Demo Hour
- 2015
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Ingår i: Interactions. - 1072-5520. ; 22:1, January + February 2015, s. 6-9
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Tidskriftsartikel (refereegranskat)abstract
- NordiCHI'14 conference attendees got hands-on experience with a number of great new interactive systems. Among the accepted poster, video, and demo submissions, we selected the following four prototypes to illustrate the high-quality design research displayed during the conference, which was held in Helsinki, Finland, October 26--30, 2014.
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| 17. |
- Freeman, Euan, et al.
(författare)
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Audible beacons and wearables in schools : Helping young visually impaired children play and move independently
- 2017
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Ingår i: CHI 2017 - Proceedings of the 2017 ACM SIGCHI Conference on Human Factors in Computing Systems : Explore, Innovate, Inspire - Explore, Innovate, Inspire. - New York, NY, USA : ACM. - 9781450346559 ; 2017-May, s. 4146-4157
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Konferensbidrag (refereegranskat)abstract
- Young children with visual impairments tend to engage less with their surroundings, limiting the benefits from activities at school. We investigated novel ways of using sound from a bracelet, such as speech or familiar noises, to tell children about nearby people, places and activities, to encourage them to engage more during play and help them move independently. We present a series of studies, the first two involving visual impairment educators, that give insight into challenges faced by visually impaired children at school and how sound might help them. We then present a focus group with visually impaired children that gives further insight into the effective use of sound. Our findings reveal novel ways of combining sounds from wearables with sounds from the environment, motivating audible beacons, devices for audio output and proximity estimation. We present scenarios, findings and a design space that show the novel ways such devices could be used alongside wearables to help visually impaired children at school.
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| 18. |
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| 19. |
- Kytö, Mikko, et al.
(författare)
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Designing bimanual tangible interaction for stroke survivors
- 2018
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Ingår i: TEI 2018 - Proceedings of the 12th International Conference on Tangible, Embedded, and Embodied Interaction. - New York, NY, USA : ACM. - 9781450355681 ; 2018-January, s. 245-252
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Konferensbidrag (refereegranskat)abstract
- Stroke is a significant cause of long-term disability, impairing over 10 million peoples motor function, primarily on one side of the body every year. Whilst effective rehabilitation exercises can help recover and maintain some affected motor function, stroke survivors often do not carry out enough of these. Instead relying on their `good' side to carry out tasks. However, this leads to poor recovery limiting the ability to carry out everyday bimanual tasks (such as dressing or cooking). We present work that seeks to support stroke survivors to engage in bimanual rehabilitation through interaction with augmented tangible objects that can be used to control everyday devices. Through a user-centered design process, we uncovered how bimanual rehabilitation can be supported. This led to the development of the ActivSticks device that allows bimanual rehabilitation and interaction with other devices and services.
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| 20. |
- Larsen, Henrik Svarrer, et al.
(författare)
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Inclusion through Design : Engaging Children with Disabilities in Development of Multi-Sensory Environments
- 2013
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Ingår i: 12th biennial European conference of the Association for the Advancement of Assistive Technology in Europe, AAATE 2013, held in Vilamoura, Portugal, in September 2013. ; 33:Assistive Technology: From Research to Practice, s. 628-633
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Konferensbidrag (refereegranskat)abstract
- This paper is based on outcomes from SID (http://sid.desiign.org), a three-year project where twenty-four children with profound intellectual disabilities visited three MSE centres. SID's aim was to develop and demonstrate the potentials of interactive design in and for MSE practices together with the children and the pedagogical staff. In the project, we developed artefacts that were designed to be part of and mediate the explorations rather than to become end products. The designs were explored by the children at the MSE centres and further developed depending on what the children did and what seemed relevant to them. There are few documented examples in the literature where children with profound developmental disabilities are involved as active participants in design activities. We present and discuss the participants' roles in SID's research and development process based on experiences and material from the project, with a hope that this paper can serve as an example of what such a development process might look like and as inspiration for future initiatives.
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| 21. |
- Lund, Morten E., et al.
(författare)
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Inductive tongue control of powered wheelchairs
- 2010
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Ingår i: International Conference of the IEEE Engineering in Medicine and Biology Society. - 1557-170X. - 9781424441235 ; , s. 3361-3364
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Konferensbidrag (refereegranskat)abstract
- Alternative and effective methods for controlling powered wheelchairs are important to individuals with tetraplegia and similar impairments whom are unable to use the standard joystick. This paper describes a system where tongue movements are used to control a powered wheelchair thus providing users, with high level spinal cord injuries, full control of their wheelchair. The system is based on an inductive tongue control system developed at Center for Sensory-Motor Interaction (SMI), Aalborg University. The system emulates a standard analog joystick in order to interface the wheelchair, thus ensuring that the system works with almost any wheelchair. The total embedment of the tongue interface into the mouth makes the control practically invisible. A fuzzy system combining 8 sensors for directional control allows for multidirectional control of the wheelchair. Preliminary test results show navigation abilities, which are highly competitive when compared to other tongue control system.
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| 22. |
- Magnusson, Charlotte, et al.
(författare)
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Co-designing together with persons with visual impairments
- 2017
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Ingår i: Mobility of Visually Impaired People : Fundamentals and ICT Assistive Technologies - Fundamentals and ICT Assistive Technologies. - Cham : Springer International Publishing. - 9783319544465 - 9783319544441 ; , s. 411-434
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Bokkapitel (refereegranskat)
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| 23. |
- Magnusson, Charlotte, et al.
(författare)
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Designing activity games for stroke survivors
- 2019
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Konferensbidrag (refereegranskat)abstract
- In this paper we present work carried out in the EU project STARR and the NordForsk project ActivAbles. We report on the design and iterative development of an outdoor activity game for stroke survivors, and discuss design choices, experiences from the iterative testing and outline potential future developments.
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| 24. |
- Magnusson, Charlotte, et al.
(författare)
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Interaction gestures for a wearable device defined by visually impaired children
- 2016
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Ingår i: Proceedings of the 9th Nordic Conference on Human-Computer Interaction: Game-Changing Design, NordiCHI 2016. - New York, NY, USA : ACM. - 9781450347631 ; 23-27-October-2016
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Konferensbidrag (refereegranskat)abstract
- This paper reports results from two workshops organized with children with visual impairments ranging from blindness to low vision. The aim of the workshops was to suggest gestures for the interaction with a small wearable audio-bracelet. Results show a preference for mechanical buttons and touch-based gestures on the device (mainly tapping and sliding), while only one tentative suggestion is made for a gesture made with the device (shaking).
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| 25. |
- Magnusson, Charlotte, et al.
(författare)
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Interactive Balance and Walking Training for Stroke Survivors
- 2019
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Ingår i: 13th EAI International Conference on Pervasive Computing Technologies for Healthcare - Demos and Posters. - : EAI. - 9781631901843
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Konferensbidrag (refereegranskat)abstract
- In the ActivAbles and STARR projects we have developed interactive training tools for stroke survivors. A prototype system includes an interactive balance foam pad, feedback lamps and a step counting game app which all connect to a central server. The feedback is designed to be inclusive - designs are multimodal, and the setup is flexible and can easily be adapted. We describe the system and report results from a feasibility study with 10 stroke survivors who used the system for a longer period in the home.
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| 26. |
- Magnusson, Charlotte, et al.
(författare)
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Tangible interaction for stroke survivors : Design recommendations
- 2017
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Ingår i: TEI 2017 - Proceedings of the 11th International Conference on Tangible, Embedded, and Embodied Interaction. - New York, NY, USA : ACM. - 9781450346764 ; , s. 597-602
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Konferensbidrag (refereegranskat)abstract
- In this paper we outline the initial stages of a human centered design process aimed at the design of novel technology (tangible interactive objects) for stroke survivors. We found it useful to support standard methods, such as interviews and focus groups, with a video prototype in order to make the concept of tangible interaction, which was novel to our users, more clear. In addition we carried out a co-design workshop together with stroke survivors. Based on these activities, we present a set of preliminary design guidelines for tangible interaction for stroke survivors.
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| 27. |
- Magnusson, Charlotte, et al.
(författare)
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Universal Balance?
- 2018
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Ingår i: Studies in Health Technology and Informatics. - 0926-9630. ; 256, s. 847-853
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Tidskriftsartikel (refereegranskat)abstract
- In the ActivAbles and STARR projects we are developing interactive training tools for stroke survivors. As our initial user studies pointed to balance being a key ability, one of the developed tools is an interactive balance mat. While balance equipment is common, interactive balancing equipment for persons with poor balance is less common. Equipment exists for persons with good balance (eg. Wii), but most games and exercises are less suited for many stroke survivors. The development process has been done in close collaboration with stroke survivors. We have used both creative workshops and individual iterative testing in the development, and have currently a prototype that is being tested in the home of 12 stroke survivors. This prototype is based on a foam mat which incorporates pressure sensing, and which allows you to see the pressure distribution as you exercise, but also allows you to play music or play different games. The feedback is designed to be inclusive - designs are multimodal (visual and auditory), and the setup is flexible and can easily be adapted. Initial test results show that the overall design is promising and works well (is robust, motivating and used). Problems identified are connected to the fact that we use main stream tablets for feedback, which adds complexity for the user both with interaction and charging. We are currently working on solving these problems, and expect to end up with a balance mat well suited for a wide range of users - not only stroke survivors.
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| 28. |
- Magnusson, Charlotte, et al.
(författare)
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Walk after stroke: initial development of a step counting game for stroke survivors
- 2018
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Ingår i: MobileHCI '18 Proceedings of the 20th International Conference on Human-Computer Interaction with Mobile Devices and Services Adjunct. - New York, NY, USA : ACM. - 9781450359412 ; , s. 237-237
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Konferensbidrag (refereegranskat)abstract
- This paper presents work done within the EU project STARR. Within the framework of the project technologies to empower and support stroke survivors are developed. We report on the iterative development of an outdoor activity game for stroke survivors, and discuss design choices, experiences from the initial testing and outline potential future developments.
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| 29. |
- Magnusson, Charlotte, et al.
(författare)
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What Do You Like? Early Design Explorations of Sound and Haptic Preferences
- 2015
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Ingår i: Proceedings of the 17th International Conference on Human-Computer Interaction with Mobile Devices and Services Adjunct. - New York, NY, USA : ACM. - 9781450336536 ; , s. 766-773
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Konferensbidrag (refereegranskat)abstract
- This study is done within the framework of a project aimed at developing a wearable device (a bracelet) intended to support sensory motor rehabilitation of children with visual impairments. We present an exploratory study of aesthetic/hedonistic preferences for sounds and touch experiences among visually impaired children. The work is done in a participatory setting, and we have used mixed methods (questionnaires, workshop and field trial using a mobile location based app for story creation) in order to get a more complete initial picture of how enjoyable training devices should be designed for our target users.
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| 30. |
- N. S. Andreasen Struijk, Lotte, et al.
(författare)
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Development and functional demonstration of a wireless intraoral inductive tongue computer interface for severely disabled persons
- 2017
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Ingår i: Disability and Rehabilitation: Assistive Technology. - : Informa UK Limited. - 1748-3107 .- 1748-3115. ; 12:6, s. 631-640
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Tidskriftsartikel (refereegranskat)abstract
- Purpose: Individuals with tetraplegia depend on alternative interfaces in order to control computers and other electronic equipment. Current interfaces are often limited in the number of available control commands, and may compromise the social identity of an individual due to their undesirable appearance. The purpose of this study was to implement an alternative computer interface, which was fully embedded into the oral cavity and which provided multiple control commands. Methods: The development of a wireless, intraoral, inductive tongue computer was described. The interface encompassed a 10-key keypad area and a mouse pad area. This system was embedded wirelessly into the oral cavity of the user. The functionality of the system was demonstrated in two tetraplegic individuals and two able-bodied individuals Results: The system was invisible during use and allowed the user to type on a computer using either the keypad area or the mouse pad. The maximal typing rate was 1.8 s for repetitively typing a correct character with the keypad area and 1.4 s for repetitively typing a correct character with the mouse pad area. Conclusion: The results suggest that this inductive tongue computer interface provides an esthetically acceptable and functionally efficient environmental control for a severely disabled user.Implications for RehabilitationNew Design, Implementation and detection methods for intra oral assistive devices.Demonstration of wireless, powering and encapsulation techniques suitable for intra oral embedment of assistive devices.Demonstration of the functionality of a rechargeable and fully embedded intra oral tongue controlled computer input device.
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| 31. |
- Olafsdottir, Steinunn A., et al.
(författare)
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Developing ActivABLES for community-dwelling stroke survivors using the Medical Research Council framework for complex interventions
- 2020
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Ingår i: BMC Health Services Research. - : Springer Science and Business Media LLC. - 1472-6963. ; 20
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Tidskriftsartikel (refereegranskat)abstract
- Background: Novel technical solutions are called for to promote home-based exercise among community-dwelling stroke survivors supported by their caregivers. Lack of resources and knowledge about how to accomplish it, has been demonstrated. The objective of this study is to describe in detail the development of ActivABLES, a technical intervention to promote home-based exercise and physical activity engagement of community-dwelling stroke survivors with support from their caregivers. Methods: The technical development process of ActivABLES was guided by the Medical Research Council (MRC) framework for development and evaluation of complex interventions as well as by principles of human-centred design and co-design. The main steps included: (1) Synthesis of evidence supporting the inclusion of balance exercises, mobility and walking exercises and exercises for the upper arm; (2) Implementation of initial user studies with qualitative data collection from individual interviews with stroke survivors, and focus group interviews with caregivers and health professionals; (3) Preliminary testing of eight prototypes with seven stroke survivors and their caregivers. Results: After the preliminary testing of eight prototypes, four prototypes were not further developed whereas four prototypes were modified further. In addition, two new prototypes were developed, leaving six prototypes for further modification: 1) ActivFOAM for balance exercises, 2) WalkingSTARR to facilitate walking, 3) ActivBALL for hand exercises, 4) ActivSTICKS for upper arm exercises, and 5) ActivLAMP and 6) ActivTREE which both give visual feedback on progress of daily exercise and physical activities. ActivFOAM, ActivBALL and ActivSTICKS are all connected to a tablet where exercise instructions are given. All the exercise prototypes can be connected to ActivLAMP and ActivTREE to give feedback on how much exercise the user has done. Settings can be individualised and recommended daily time and/or repetition can easily be changed as the user progresses to higher activity levels. Conclusions: The development process of ActivABLES was guided by the principles of human-centred design, with iterative testing of future users, and by the MRC framework of complex intervention, with a repeated process of development and testing. This process resulted in six prototypes which are available for feasibility testing among a small group of community-dwelling stroke survivors.
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| 32. |
- Olafsdottir, Steinunn A., et al.
(författare)
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Feasibility of ActivABLES to promote home-based exercise and physical activity of community-dwelling stroke survivors with support from caregivers : A mixed methods study
- 2020
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Ingår i: BMC Health Services Research. - : Springer Science and Business Media LLC. - 1472-6963. ; 20:1
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Technical applications can promote home-based exercise and physical activity of community-dwelling stroke survivors. Caregivers are often able and willing to assist with home-based exercise and physical activity but lack the knowledge and resources to do so. ActivABLES was established to promote home-based exercise and physical activity among community-dwelling stroke survivors, with support from their caregivers. The aim of our study is to investigate the feasibility of ActivABLES in terms of acceptability, demand, implementation and practicality. METHODS: A convergent design of mixed methods research in which quantitative results were combined with personal experiences of a four-week use of ActivABLES by community-dwelling stroke survivors with support from their caregivers. Data collection before, during and after the four-week period included the Berg Balance Scale (BBS), Activities-Specific Balance Confidence Scale (ABC), Timed-Up-and-Go (TUG) and Five Times Sit to Stand Test (5xSST) and data from motion detectors. Semi-structured interviews were conducted with stroke survivors and caregivers after the four-week period. Descriptive statistics were used for quantitative data. Qualitative data was analysed with direct content analysis. Themes were identified related to the domains of feasibility: acceptability, demand, implementation and practicality. Data was integrated by examining any (dis)congruence in the quantitative and qualitative findings. RESULTS: Ten stroke survivors aged 55-79 years participated with their informal caregivers. Functional improvements were shown in BBS (+ 2.5), ABC (+ 0.9), TUG (- 4.2) and 5xSST (- 2.7). More physical activity was detected with motion detectors (stand up/sit down + 2, number of steps + 227, standing + 0.3 h, hours sitting/lying - 0.3 h). The qualitative interviews identified themes for each feasibility domain: (i) acceptability: appreciation, functional improvements, self-initiated activities and expressed potential for future stroke survivors; (2) demand: reported use, interest in further use and need for follow-up; (3) implementation: importance of feedback, variety of exercises and progression of exercises and (4) practicality: need for support and technical problems. The quantitative and qualitative findings converged well with each other and supported the feasibility of ActivABLES. CONCLUSIONS: ActivABLES is feasible and can be a good asset for stroke survivors with slight or moderate disability to use in their homes. Further studies are needed with larger samples.
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| 33. |
- Omelekhina, Yuliya, et al.
(författare)
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Effect of energy renovation and occupants' activities on airborne particle concentrations in Swedish rental apartments
- 2021
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Ingår i: Science of the Total Environment. - : Elsevier BV. - 0048-9697. ; 806
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Tidskriftsartikel (refereegranskat)abstract
- Exposure to airborne particles causes detrimental health effects, hence their assessment in indoor environments, where people spend most of the time, is important. The influence of energy renovation and occupants' activities on airborne particle concentrations was assessed in seven occupied Swedish residences. Ultrafine particle (UFP, <100 nm) number concentrations, PM2.5 (<2.5 μm) and black carbon (BC, <900 nm) mass concentrations were simultaneously measured inside and outside before, after renovation, and during follow-up. The average indoor UFP number concentrations increased from 6200 (±4070) cm-3 before renovation to 12,700 (±6040) cm-3 during the follow up, as the number of indoor activities doubled. Indoor UFP number concentrations depended mainly on frequency and type of occupants' activities in studied residences (e.g., cooking, candle burning). The average indoor PM2.5 concentration decreased from 8.6 (±5.8) μg m-3 before renovation to 2.5 (±1.3) μg m-3 during follow up, as the activities that generated PM2.5 decreased, and infiltration of outdoor particles could have been decreased due to renovation measures. However, the indication of infiltration decrease during the follow up, assessed on the basis of indoor to outdoor ratios during non-activity times (with no influence of occupants' activities), was not observed after the renovation and should be treated with caution. In this study indoor PM2.5 and BC were influenced by activities and outdoor concentrations. Reduction of exposure to indoor UFP, might be obtained by optimization of kitchen exhaust flows. An improved design of supply air inlets in mechanical exhaust ventilation systems may reduce PM2.5 infiltration. Occupants' logbook records, needed for identification of sources contributing to particle exposure, proved useful but not always accurate compared to technical measurements of activities and UFP concentrations. Development of simple and reliable activity detection systems is needed to complement logbooks and allow accurate assessment of source contribution to particle exposure in homes and associated health effects.
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| 34. |
- Pedersen, Eja, et al.
(författare)
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Challenges in transdisciplinary research : Example from a study on people as part of energy and ventilation systems in residential buildings (PEIRE)
- 2019
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Ingår i: Cold Climate HVAC 2018 : Sustainable Buildings in Cold Climates - Sustainable Buildings in Cold Climates. - 9783030006617 - 9783030006624 ; , s. 802-812
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Konferensbidrag (refereegranskat)abstract
- Energy efficiency measures in residential buildings typically include changes in ventilation and heating systems, and increased thermal insulation of the building envelope. The expected energy efficiency is not always reached, despite large knowledge and professional implementation of each separate measure. Thereis a lack in understanding of how technical systems interact, and how the ocupants are influenced by and in turn influence the systems by their behaviour. A holistic view and a transdisciplinary research approach are needed to understand relevant interactions and propose integrated energy efficiency measures. The aim of this paper is to reveal challenges in transdisciplinary research projects that include real world studies on both humans and technical systems with measurements before and after renovation of multifamily housing. It is based on experiences from the PEIRE-project (People, Environment, Indoor, Renovation, Energy) carried out by a research team with expertise on environmental psychology, human behaviour, interaction design, universal design, building physics, building services, thermal comfort, aerosol technology, exposure assessment, acoustics, daylight, and complex thinking. Differences in theoretical bases and methodology needed to be dealt with. Metatheory building could help with the transition from a multi- to a transdisciplinary understanding.
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| 35. |
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| 36. |
- Pedersen, Eja, et al.
(författare)
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Challenges in Transdisciplinary Research—Example from a Study on People as Part of Energy and Ventilation Systems in Residential Buildings (PEIRE)
- 2018
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Ingår i: Cold Climate HVAC 2018. - Cham : Springer. - 9783030006617 - 9783030006624 ; , s. 803-812
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Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- Energy efficiency measures in residential buildings typically include changes in ventilation and heating systems, and increased thermal insulation of the building envelope. The expected energy efficiency is not always reached, despite large knowledge and professional implementation of each separate measure. There is a lack in understanding of how technical systems interact, and how the occupants are influenced by and in turn influence the systems by their behaviour. A holistic view and a transdisciplinary research approach are needed to understand relevant interactions and propose integrated energy efficiency measures. The aim of this paper is to reveal challenges in transdisciplinary research projects that include real world studies on both humans and technical systems with measurements before and after renovation of multifamily housing. It is based on experiences from the PEIRE-project (People, Environment, Indoor, Renovation, Energy) carried out by a research team with expertise on environmental psychology, human behaviour, interaction design, universal design, building physics, building services, thermal comfort, aerosol technology, exposure assessment, acoustics, daylight, and complex thinking. Differences in theoretical bases and methodology needed to be dealt with. Metatheory building could help with the transition from a multi- to a transdisciplinary understanding.
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| 37. |
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Universal Design 2014: Three Days of Creativity and Diversity
- 2014
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Proceedings (redaktörskap) (refereegranskat)abstract
- Universal Design, Design for All and Inclusive Design are all aimed at dismantling physical and social barriers to inclusion in all areas of life. Engagement in universal design is on the increase worldwide as practitioners and researchers explore creative and desirable solutions to shape the future of universal design products and practices. This book is a collection of the papers presented at UD2014, the International Conference on Universal Design, held in Lund, Sweden, in June 2014. The conference offered a creative and diverse meeting place for all participants to exchange knowledge, experiences and ideas, and to build global connections and creative networks for future work on universal design. The themes of UD2014 span many aspects of societal life, and the papers included here cover areas as diverse as architecture, public transport, educational and play environments, housing, universal workspaces, and the Internet of things, as well as designs and adaptations for assistive technology. The book clearly demonstrates the breadth of universal design and its ongoing adoption in societies all over the world, and will be of interest to anyone whose work involves building a more inclusive environment for all.
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| 38. |
- Wierzbicka, Aneta, et al.
(författare)
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Healthy Indoor Environments : The Need for a Holistic Approach
- 2018
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Ingår i: International Journal of Environmental Research and Public Health. - : MDPI. - 1661-7827 .- 1660-4601. ; 15:9
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Tidskriftsartikel (refereegranskat)abstract
- Indoor environments have a large impact on health and well-being, so it is important to understand what makes them healthy and sustainable. There is substantial knowledge on individual factors and their effects, though understanding how factors interact and what role occupants play in these interactions (both causative and receptive) is lacking. We aimed to: (i) explore interactions between factors and potential risks if these are not considered from holistic perspective; and (ii) identify components needed to advance research on indoor environments. The paper is based on collaboration between researchers from disciplines covering technical, behavioural, and medical perspectives. Outcomes were identified through literature reviews, discussions and workshops with invited experts and representatives from various stakeholder groups. Four themes emerged and were discussed with an emphasis on occupant health: (a) the bio-psycho-social aspects of health; (b) interaction between occupants, buildings and indoor environment; (c) climate change and its impact on indoor environment quality, thermal comfort and health; and (d) energy efficiency measures and indoor environment. To advance the relevant research, the indoor environment must be considered a dynamic and complex system with multiple interactions. This calls for a transdisciplinary and holistic approach and effective collaboration with various stakeholders.
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