| 1. |
- Trägårdh, Karin, et al.
(författare)
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Risk Profiles of Female Perpetrators of Severe Violence
- 2019
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Ingår i: 13th Nordic Symposium on Forensic Psychiatry. August 20-22, Gothenburg, Sweden.
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Female offenders without a severe mental disorder show more criminogenic factors than those with. Both groups are characterized by mental health problems. We need to further characterize female offenders. Background Offenders of lethal/severe violence are in a majority of cases male, about 90% (Falk et al., 2014), and research has to a considerable extent focused on male violent offenders. Although less is known about female violent offenders than male offenders, previous research has indicated significant differences between male and female offenders of lethal/severe violence (Trägårdh et al., 2016; Yourstone et al., 2008). Since a majority of female perpetrators of lethal violence undergo a forensic psychiatric investigation (RPU/FPI), these documents contains important information about this group. Purpose The aim of this ongoing study is to characterize female perpetrators of severe violent crimes, and to compare female perpetrators sentenced to forensic psychiatric compulsory care with those sentenced to correctional treatment. Method This is an exploratory and descriptive study with a cross-sectional design. All forensic evaluations (FPI) made in Sweden between 2000-2014 (from The National Board of Forensic Medicine/RMV), and the subsequent court verdicts, in cases where women had used lethal/severe violence (n≈180) where used as the basis for data collection in this study. The present preliminary analyses (2-tests and ANOVA) contains approx. 26% (n=47) of the total group. Group differences were investigated regarding: Mental health (FPI) Risk factors (HCR-20 and PCL-R) Victim relation (FPI) Criminal behavior (FPI) Results Female offenders with and without a Severe mental disorder (SMD) seems to differ in some respects. For female offenders with a SMD, the crime was more likely to have been conducted in a less criminal context (see Table). For female offenders without a SMD, the following characteristics were more frequently present: Victim gender – male Substance abuse + Under the influence of substance (offender and victim) Previous violence between victim and offender Previous registered criminality Also, several common features between the SMD and non-SMD group of female offenders were found. The majority of all female offenders had: Previous psychiatric contact and diagnoses Previously attempted suicide No previously registered criminality Conclusions Preliminary results of the female perpetrators who had underwent a FPI seems to identify both substantial differences and similarities between those with versus without a SMD, where those without show more criminogenic factors. Both groups were also characterized by a high amount of mental illness. Also, these results supports previous research that female and male offenders of severe violence differ in important ways. Since a majority of female perpetrators of lethal violence undergo a forensic psychiatric investigation, these results should be generalizable to this group as a whole in Sweden. Based on these results, a great need to further characterize female offenders of severe/lethal violence remain.
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| 2. |
- Munthe, Christian, 1962
(författare)
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The Return of Lombroso? Ethical and Philosophical Aspects of (Visions of) Forensic Screening
- 2013
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Ingår i: 33rd International Congress of Law and Mental Health, Amsterdam, July 14-19, 2013.
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Konferensbidrag (refereegranskat)abstract
- Italian nineteenth century criminologist Cesare Lombroso is notorious for his seminal ideas about criminality and anti-social behaviour resulting from physiological anomalies that should be detected by society and used for forensic preventive purposes. After an extended period of disrepute following World War II, similar ideas have been resurrected in psychiatry, genetics, neurology and criminology in the past decade or two. In particular, there is a growing focus on early detection and application of preventive measures. This development actualizes a complex web of ethics and policy issues having to do with the well-known fact that screening and prevention in the health area are far from ethically clear-cut activities and actualize vivid prospects of doing extensive harm to individuals as well as society. Also, taken to its extreme, it actualizes the idea of using prenatal or preimplantation testing to preselect against children with a predisposition for criminal or antisocial behaviour. In the forensic case, such screening-prevention strategies will connect further to a complicated issue about the proper use of risk-assessment models for societal decision-making for precautionary purposes. Based on former work in all of these areas, this presentation will outline and analyze the basic issue of the defensibility of activities of this sort, with the perspective of forestalling unintentional harm to individuals and society.
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| 3. |
- Abbas, Abdul-Karim, 1959, et al.
(författare)
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Long-term potentiation and insult conditioning in hippocampal slices from young rats: a role for protein synthesis under chemical stress?
- 2010
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Ingår i: The 10th Biennial Meeting of the Asia-Pacific Society for Neurochemistry (APSN), October 17-20, 2010, Phuket, Thailand.
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- We have previously demonstrated that in young rats (12-20-day-old) a sustained long-term potentiation (LTP) can still be induced under conditions of protein synthesis inhibition. It was therefore suggested that sufficient and necessary proteins were already available at the induction time to accomplish LTP maintenance for several hours. Against this background, we have questioned whether hippocampal slices subjected to certain insult conditions might be more sensitive to protein synthesis inhibitors. High K+ concentration has previously been reported to cause an amnesic effect in vivo as well as increasing protein turnover in vitro. We have here employed a K+ insult model under conditions when protein synthesis was inhibited. Recordings were obtained from hippocampal slices for up to 9 h, with or without a cocktail of protein synthesis inhibitors, containing cycloheximide (60 µM) and anisomycin (25 µM). High potassium (50 mM) was transiently applied (5-15 min) shortly after inducing LTP in one of two separate pathways stimulated alternatively. Additionally, an NMDA-receptor antagonist AP5 was supplied after LTP induction to minimize effects related to depolarization-induced glutamate release. Following elimination of all responses for about 30 min, both test and control responses partly recovered. The degree of remaining LTP, defined as test/control ratio, was reduced in both groups of slices (NMDA-independent depotentiation) but was significantly smaller in the drug-treated ones. We are also running an insult model based on oxidative stress, applying hydrogen peroxide (4-5 mM) before or after LTP induction; however, the results are still insufficient for a final conclusion. The potency of cycloheximide, anisomycin or cocktail of the drugs was verified by measurement of incorporation of [3H]-leucine into trichloracetic acid (TCA) precipitable macromolecules. Cycloheximide, anisomycin or cocktail, at concentrations used here caused 95%, 97% and 95% blocking effect, respectively. Our data confirm the idea that sufficient and necessary constitutive proteins are available in the young hippocampus to maintain LTP under conditions of protein synthesis inhibition. They also reveal that LTP in slices subjected to certain insult conditions early after the induction is sensitive to protein synthesis inhibition, probably due to increase in constitutive proteins turnover.
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| 4. |
- Thomas, Ilias, et al.
(författare)
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Using measurements from wearable sensors for automatic scoring of Parkinson's disease motor states : Results from 7 patients
- 2017
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Ingår i: 2017 39th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC). - New York : IEEE. - 1094-687X. - 9781509028092 - 9781509028108 ; , s. 131-134
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Konferensbidrag (refereegranskat)abstract
- The objective of this study was to investigate the validity of an objective gait measure for assessment of different motor states of advanced Parkinson's disease (PD) patients. Seven PD patients performed a gait task up to 15 times while wearing sensors on their upper and lower limbs. Each task was performed at specific points during a test day, following a single dose of levodopa-carbidopa. At the time of the tasks the patients were video recorded and three movement disorder experts rated their motor function on three clinical scales: a treatment response scale (TRS) that ranged from −3 (very bradykinetic) to 0 (ON) to +3 (very dyskinetic), a dyskinesia score that ranged from 0 (no dyskinesia) to 4 (extreme dyskinesia), and a bradykinesia score that ranged from 0 (no bradykinesia) to 4 (extreme bradykinesia). Raw accelerometer and gyroscope data of the sensors were processed and analyzed with time series analysis methods to extract features. The utilized features quantified separate limb movements as well as movement symmetries between the limbs. The features were processed with principal component analysis and the components were used as predictors for separate support vector machine (SVM) models for each of the three scales. The performance of each model was evaluated in a leave-one-patient out setting where the observations of a single patient were used as the testing set and the observations of the other 6 patients as the training set. Root mean square error (RMSE) and correlation coefficients for the predictions showed a good ability of the models to map the sensor data into the rating scales. There were strong correlations between the SVM models and the mean ratings of TRS (0.79; RMSE=0.70), bradykinesia score (0.79; RMSE=0.47), and bradykinesia score (0.78; RMSE=0.46). The results presented in this paper indicate that the use of wearable sensors when performing gait tasks can generate measurements that have a good correlation to subjective expert assessments.
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| 6. |
- Lindén, Thomas, 1962, et al.
(författare)
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APOE is a strong gender-dependant risk factor for post-stroke major depression
- 2009
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Ingår i: European Stoke Conference, Stockholm, Maj.
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Konferensbidrag (refereegranskat)abstract
- BACKGROUND: Stroke is a major disease that annually affects 15 million people worldwide. Impaired mood is a common and serious complication. Previous studies indicate that Apolipoprotein E (APOE) alleles differently incur risks for late-life onset depression. The aim of this study was to analyse APOE as a risk factor in men and women for depressive disorders late after stroke. METHODS: Two-hundred and forty-three stroke patients over 70 years of age entered a longitudinal, naturalistic hospital-based study. One hundred and forty nine were assessed for cognitive impairments and depression and 88 were genetically tested one and a half years later. RESULTS: Thirty-three percent had any depression, 15% major depressive disorder. Genotypes 3/2 and 4/2 associated to depression. Major depressive disorder, but not all depression, related strongly to APOE carriership (OR 6.0; 95%CI 1.6 to 22), and was stronger for women (OR 17: 95% CI 1.6 to 174) than for men. CONCLUSION: In this first study to analyse the association between APOE genotypes and post-stroke depression, we found that APOE increased the risk for depression, especially in women. The results call for further studies to confirm and clarify the mechanisms for these effects as well as for the difference between sexes.
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| 7. |
- MacGregor, Oskar
(författare)
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Zapped! : Why Brain Stimulation Does Not Equal Performance Enhancement
- 2022
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Ingår i: Is Neurodoping Different?.
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- If a technology being used by elite athletes to gain a competitive edge marks some sort of coming of age for said technology, then I suppose electrical and magnetic brain stimulation has now, it would seem, finally come of age. Gone are the days of debilitating One-Flew-Over-The-Cuckoo's-Nest-style electroshock jolts, replaced by sleek and sexy marketing for low-current "cognitive enhancement" devices, promising everything from improved focus to - as revealed by a quick traipse through Google and Reddit - increased creativity and intelligence, as well as helping you both win competitions and quit smoking while you're at it! And with this development, an attendant fear of its misuse, for creating unfair advantages - not least among elite athletes, with their federations' obsessive focus on (certain specific forms of) fairness - to the point that the journal Neuroethics recently dedicated a special issue to this topic of "neurodoping". But, perhaps not too surprisingly, reality doesn't really live up to the hype. While various individual studies can be found to support the view that brain stimulation might enhance performance, this takes place against a broad backdrop of serious issues within empirical neuroscience and psychology more generally, relating to all manner of problems with sample sizes, methods, assumptions, etc., along with some plain old ignorance about how to properly deal with all of these. In this talk, I will therefore give the briefest of introductions as to why essentially all existing claims about the purportedly performance-enhancing effects of transcranial electric stimulation (TES) and transcranial magnetic stimulation (TMS) are claiming far too much, far too soon. As far as we really know, based on what robust evidence actually exists today, "neurodoping" of this sort gives no more a competitive advantage than does rubbing your lucky rabbit's foot.
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| 8. |
- Zagal, Juan Cristobal, et al.
(författare)
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Signficance determination for the scale-space primal sketch by comparison of statistics of scale-space blob volumes computed from PET signals vs. residual noise
- 2000
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Konferensbidrag (refereegranskat)abstract
- A dominant approach to brain mapping is to define functional regions in the brain by analyzing brain activation images obtained by PET or fMRI. In [1], it has been shown that the scale-space primal sketch provides a useful tool for such analysis. Some attractive properties of this method are that it only makes few assumptions about the data and the process for extracting activations is fully automatic.In the present version of the scale-space primal sketch, however, there is no method for determining p-values. The purpose here is to present a new methodology for addressing this question, by introducing a descriptor referred to as the -curve, which serves as a first step towards determining the probability of false positives, i.e. alpha.
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| 9. |
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| 10. |
- Ekberg, Lars, 1962
(författare)
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Responses to the covid-19 pandemic – summary of a questionnaire survey
- 2023
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Buildings Post Corona knowledge session is a possibility for academia, industry and organizations, and authorities to meet and discuss challenges related to healthy indoor environments. We start the session with presentations from the four universities, pitches from collaborating partners, and end with an open discussion. The aim is to share knowledge and also identify areas of mutual interest and new R&D-projects. Programme for 6 October 10:00 Jonas Anund Vogel KTH – Welcome and Introduction 10:10 Lars Ekberg Chalmers – Responses to the covid-19 pandemic – summary of a questionnaire survey 10:25 Aneta Wierzbicka LTH – Higher toxicity of particles collected indoors compared to outdoors in occupied residences in Sweden 10:40 Thomas Olofsson – A survey of knowledge gaps in Sweden during the Corona pandemic 10:55 Jakob Löndahl LTH – Measurements of SARSCoV-2 in indoor air 11:10 Sasan Sadrizadeh KTH – Efforts to prevent cross-contamination in hospital buildings 11:25 Alan Kabanshi HIG – Indoor transmission of airborne infections 11:30 Jutta Kannisto Tamlink - E3 Excellence in Pandemic Response and Enterprise Solutions 11:35 Discussion 11:55 Summary https://www.kth.se/en/2.96511/about-the-project/presentations/buildings-post-corona-knowledge-session-1.1197403 Buildings Post Corona is funded by FORMAS. Performed in collaboration with Akademiska Hus, Bengt Dahlgren, Einar Mattsson, Länsgården Fastigheter Örebro, Energi- och Miljötekniska Föreningen, Swegon, Tovenco, Fastighetsägarna, Svensk Ventilation, Boverket, Folkhälsomyndigheten, Lokalförvaltningen Göteborg, Geberit
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