| 1. |
- Allwood, Carl Martin, 1952, et al.
(author)
-
Child witnesses’ metamemory realism
- 2006
-
In: Scandinavian Journal of Psychology. - : Wiley. - 0036-5564 .- 1467-9450. ; 47, s. 461-470
-
Journal article (peer-reviewed)abstract
- This study investigated the degree of realism in the confidence judgments of 11-12 year old children (N=81) of their answers to questions relating to a short film clip showing a kidnapping event. Four different confidence scales were used: a numeric scale, a picture scale, a line scale, and a written scale. The results demonstrated that the children showed a high level of overconfidence in their memories. However, no significant differences between the four confidence scales were found. The results indicate that, at least in the context investigated, 11-12 year-old children’s confidence in their event memory show poor realism. A comparison with previous research on adults indicates that children show noticeably poorer realism.
|
|
| 2. |
- Allwood, Carl Martin, 1952, et al.
(author)
-
The effects of source and type of feedback on child witnesses' metamemory accuracy
- 2005
-
In: Applied Cognitive Psychology. - : Wiley. - 0888-4080 .- 1099-0720. ; 19:3, s. 331-344
-
Journal article (peer-reviewed)abstract
- This study investigated the effect of feedback on the accuracy (realism) of 12-year-old children's metacognitive judgments of their answers to questions about a film clip. Two types of judgments were investigated: confidence judgments (on each question) and frequency judgments (i.e. estimates of overall accuracy). The source of feedback, whether it was presented as provided by a teacher or a peer child, did not influence metacognitive accuracy. Four types of feedback were given depending on whether the participant's answer was correct and depending on whether the feedback confirmed or disconfirmed the child's answer. The children showed large overconfidence when they received confirmatory feedback but much less so when they received disconfirmatory feedback. The children gave frequency judgments implying that they had more correct answers than they actually had. No main gender differences were found for any of the measures. The results indicate a high degree of malleability in children's metacognitive judgments.
|
|
| 3. |
- Dierschke, Katrin, et al.
(author)
-
Acute respiratory effects and biomarkers of inflammation due to welding-derived nanoparticle aggregates
- 2017
-
In: International Archives of Occupational and Environmental Health. - : Springer Science and Business Media LLC. - 0340-0131 .- 1432-1246. ; 90:5, s. 451-463
-
Journal article (peer-reviewed)abstract
- Welders are exposed to airborne particles from the welding environment and often develop symptoms work-related from the airways. A large fraction of the particles from welding are in the nano-size range. In this study we investigate if the welders' airways are affected by exposure to particles derived from gas metal arc welding in mild steel in levels corresponding to a normal welding day. In an exposure chamber, 11 welders with and 10 welders without work-related symptoms from the lower airways and 11 non-welders without symptoms, were exposed to welding fumes (1 mg/m(3)) and to filtered air, respectively, in a double-blind manner. Symptoms from eyes and upper and lower airways and lung function were registered. Blood and nasal lavage (NL) were sampled before, immediately after and the morning after exposure for analysis of markers of oxidative stress. Exhaled breath condensate (EBC) for analysis of leukotriene B4 (LT-B4) was sampled before, during and immediately after exposure. No adverse effects of welding exposure were found regarding symptoms and lung function. However, EBC LT-B4 decreased significantly in all participants after welding exposure compared to filtered air. NL IL-6 increased immediately after exposure in the two non-symptomatic groups and blood neutrophils tended to increase in the symptomatic welder group. The morning after, neutrophils and serum IL-8 had decreased in all three groups after welding exposure. Remarkably, the symptomatic welder group had a tenfold higher level of EBC LT-B4 compared to the two groups without symptoms. Despite no clinical adverse effects at welding, changes in inflammatory markers may indicate subclinical effects even at exposure below the present Swedish threshold limit (8 h TWA respirable dust).
|
|
| 4. |
- Engelborghs, Sebastiaan, et al.
(author)
-
Consensus guidelines for lumbar puncture in patients with neurological diseases
- 2017
-
In: Alzheimer's and Dementia: Diagnosis, Assessment and Disease Monitoring. - : Wiley. - 2352-8729. ; 8, s. 111-126
-
Journal article (peer-reviewed)abstract
- Introduction Cerebrospinal fluid collection by lumbar puncture (LP) is performed in the diagnostic workup of several neurological brain diseases. Reluctance to perform the procedure is among others due to a lack of standards and guidelines to minimize the risk of complications, such as post-LP headache or back pain. Methods We provide consensus guidelines for the LP procedure to minimize the risk of complications. The recommendations are based on (1) data from a large multicenter LP feasibility study (evidence level II-2), (2) systematic literature review on LP needle characteristics and post-LP complications (evidence level II-2), (3) discussion of best practice within the Joint Programme Neurodegenerative Disease Research Biomarkers for Alzheimer's disease and Parkinson's Disease and Biomarkers for Multiple Sclerosis consortia (evidence level III). Results Our consensus guidelines address contraindications, as well as patient-related and procedure-related risk factors that can influence the development of post-LP complications. Discussion When an LP is performed correctly, the procedure is well tolerated and accepted with a low complication rate.
|
|
| 5. |
- Granhag, Pär-Anders, 1964, et al.
(author)
-
Partners in Crime: How Liars in Collusion Betray Themselves
- 2003
-
In: Journal of Applied Social Psychology. - : Wiley-Blackwell Publishing, Inc.. - 0021-9029 .- 1559-1816. ; 33:4, s. 848-868
-
Journal article (peer-reviewed)abstract
- The paradigmatic task for participants in studies on deception is to assess veracity on the basis of a single statement. However, in applied contexts, lie catchers are often faced with multiple statements (reported by one or several suspects). To appreciate this mismatch, we conducted a study where each member of 10 truth-telling pairs and 10 lying pairs (reporting fabricated alibis) was interrogated twice about an alibi. As predicted, lying pair members were more consistent between themselves than were truth-telling pair members, and single liars and truth tellers were equally consistent over time. Furthermore, truth tellers made more commissions than did liars. Although in line with our repeat vs. reconstruct hypothesis, these findings contrast sharply with beliefs held by professional lie catchers and recommendations found in literature on deception detection. The results are translated into an applied psycholegal context.
|
|
| 6. |
- Granhag, Pär-Anders, 1964, et al.
(author)
-
The Cognitive Interview and its effect on witnesses' confidence
- 2004
-
In: Psychology, Crime & Law. - : Informa UK Limited. ; 10:1, s. 37-52
-
Journal article (peer-reviewed)abstract
- Today there is ample evidence that the Cognitive Interview (CI) enhances witnesses' memory. However, less is known about how the CI affects eyewitnesses' confidence. To address this shortcoming we conducted a study analyzing how realism in confidence was affected by the CI. All participants were first shown a filmed kidnapping. After 2 weeks we interviewed one-third of the participants according to the guidelines of the CI, one-third according to a Standard Interview (SI), and one-third were not interviewed at all (Control condition). Participants in all three conditions were then asked to answer 45 forced-choice questions, and to give a confidence judgment after each choice. For the questions, no differences in accuracy were found between the three conditions. Confidence was higher in the CI and SI conditions, compared with the Control condition. CI and SI did not differ in meta-cognitive realism but both showed lower realism compared with the Control condition, although only CI significantly so. The results indicate that the inflation in confidence is more likely to be explained in terms of a reiteration effect, than as a consequence of the particular mnemonics characterizing the CI (e.g. "mental reinstatement of context"). In sum, CI does not seem to impair (or improve) the realism in witnesses' confidence, and does not inflate confidence in erroneous recall, compared to a SI.
|
|
| 7. |
- Johansson, Helena, 1981, et al.
(author)
-
Optimization of BMD measurements to identify high risk groups for treatment--a test analysis.
- 2004
-
In: Journal of bone and mineral research. - : Wiley. - 0884-0431 .- 1523-4681. ; 19:6, s. 906-13
-
Journal article (peer-reviewed)abstract
- INTRODUCTION: The aim of this study was to develop a methodology to optimize the role of BMD measurements in a case finding strategy. We studied 2113 women > or = 75 years of age randomly selected from Sheffield, UK, and adjacent regions. Baseline assessment included hip BMD and clinical risk factors. Outcomes included death and fracture in women followed for 6723 person-years. MATERIALS AND METHODS: Poisson models were used to identify significant risk factors for all fractures and for death with and without BMD and the hazard functions were used to compute fracture probabilities. Women were categorized by fracture probability with and without a BMD assessment. A 10-year fracture probability threshold of 35% was taken as an intervention threshold. Discordance in categorization of risk (i.e., above or below the threshold probability) between assessment with and without BMD was examined by logistic regression as probabilities of re-classification. Age, prior fracture, use of corticosteroids, and low body mass index were identified as significant clinical risk factors. RESULTS: A total of 16.8% of women were classified as high risk based on these clinical risk factors. The average BMD in these patients was approximately 1 SD lower than in low-risk women; 21.5% of women were designated to be at high risk with the addition of BMD. Fifteen percent of all women were reclassified after adding BMD to clinical risk factors, most of whom lay near the intervention threshold. When a high probability of reclassification was accepted (without a BMD test) for high risk to low risk (p1< or = 0.8) and a low probability accepted for low to high risk (P2 < or = 0.2), BMD tests would be required in only 21% of the population. CONCLUSION: We conclude that the use of clinical risk factors can identify elderly women at high fracture risk and that such patients have a low average BMD. BMD testing is required, however, in a minority of women--a fraction that depends on the probabilities accepted for classification and the thresholds of risk chosen. These findings need to be validated in other cohorts at different ages and from different regions of the world.
|
|
| 8. |
- Jónsson, Gísli Gunnar, et al.
(author)
-
Dynamics of Selected Biomarkers in Cerebrospinal Fluid During Complex Endovascular Aortic Repair : A Pilot Study
- 2022
-
In: Annals of Vascular Surgery. - : Elsevier. - 0890-5096 .- 1615-5947. ; 78, s. 141-151
-
Journal article (peer-reviewed)abstract
- Introduction: Ischemic spinal cord injury (SCI) is a serious complication of complex aortic repair. Prophylactic cerebrospinal fluid (CSF) drainage, used to decrease lumbar cerebrospinal fluid (CSF) pressure, enables monitoring of CSF biomarkers that may aid in detecting impending SCI. We hypothesized that biomarkers, previously evaluated in traumatic SCI and brain injury, would be altered in CSF over time following complex endovascular aortic repair (cEVAR). Objectives: To examine if a chosen cohort of CSF biomarker correlates to SCI and warrants further research. Methods: A prospective observational study on patients undergoing cEVAR with extensive aortic coverage. Vital parameters and CSF samples were collected on ten occasions during 72 hours post-surgery. A panel of ten biomarkers were analyzed (Neurofilament Light Polypeptide (NFL), Tau, Glial Fibrillary Acidic Protein (GFAP), Soluble Amyloid Precursos Protein (APP) α and β, Amyloid β 38, 40 and 42 (Aβ38, 40 and 42), Chitinase-3-like protein 1 (CHI3LI or YKL-40), Heart-type fatty acid binding protein (H-FABP).). Results: Nine patients (mean age 69, 7 males) were included. Median total aortic coverage was 68% [33, 98]. One patient died during the 30-day post-operative period. After an initial stable phase for the first few postoperative hours, most biomarkers showed an upward trend compared with baseline in all patients with >50% increase in value for NFL in 5/9 patients, in 7/9 patients for Tau and in 5/9 patients for GFAP. One patient developed spinal cord and supratentorial brain ischemia, confirmed with MRI. In this case, NF-L, GFAP and tau were markedly elevated compared with non-SCI patients (maximum increase compared with baseline in the SCI patient versus mean value of the maximal increase for all other patients: NF-L 367% vs 79%%, GFAP 95608% versus 3433%, tau 1020% vs 192%). Conclusion: This study suggests an increase in all ten studied CSF biomarkers after coverage of spinal arteries during endovascular aortic repair. However, the pilot study was not able to establish a specific correlation between spinal fluid biomarker elevation and clinical symptoms of SCI due to small sample size and event rate.
|
|
| 9. |
- Jónsson, Sverrir Aðalsteinn, et al.
(author)
-
The drumlin field and the geomorphology of the Múlajökull surge-type glacier, central Iceland
- 2014
-
In: Geomorphology. - : Elsevier BV. - 0169-555X .- 1872-695X. ; 207, s. 213-220
-
Journal article (peer-reviewed)abstract
- Here we present a new geomorphological map of the active drumlin field and the forefield of Múlajökull, a surge-type outlet glacier, Iceland. The map is based on aerial photographs taken in 1995 and LiDAR data recorded in 2008. Mapping was done using ArcGIS 10 software on orthorectified imagery, LiDAR data and digital elevation models. The mapped landforms were initially identified on the aerial imagery and LiDAR and then ground-checked in the field. We mapped subglacial, supraglacial, ice-marginal, periglacial, and glaciofluvial landforms. The geomorphology of the Múlajökull forefield is similar to that of the forefields of other surge-type glaciers in Iceland: with a highly streamlined forefield, crevasse-fill ridges, and series of glaciotectonic end moraines. However, the large number (i.e., 110) of drumlins forming the drumlin field is unique for modern Icelandic surge-type glaciers and, as yet, unique for contemporary glaciers in general. Also apparent is that the drumlins are wider and shorter in the distal part of the drumlin field and narrower and longer in the proximal part. Hence, the mapping reveals a development of the drumlins toward a more streamlined shape of the proximal landforms that have experienced more surges. The drumlins in the drumlin field are active, i.e., they form during the modern surges of Múlajökull.
|
|
| 10. |
- Kanis, John A, et al.
(author)
-
Assessment of fracture risk.
- 2005
-
In: Osteoporosis international. - : Springer Science and Business Media LLC. - 0937-941X .- 1433-2965. ; 16:6, s. 581-9
-
Journal article (peer-reviewed)abstract
- The diagnosis of osteoporosis is based on the measurement of bone mineral density (BMD). There are a number of clinical risk factors that provide information on fracture risk over and above that given by BMD. The assessment of fracture risk thus needs to be distinguished from diagnosis to take account of the independent value of the clinical risk factors. These include age, a prior fragility fracture, a parental history of hip fracture, smoking, use of systemic corticosteroids, excess alcohol intake and rheumatoid arthritis. The independent contribution of these risk factors can be integrated by the calculation of fracture probability with or without the use of BMD. Treatment can then be offered to those identified to have a fracture probability greater than an intervention threshold.
|
|
