Identification Performance (identification + performance)

Distribution by Scientific Domains


Selected Abstracts


Eyewitness Memory and Eyewitness Identification Performance in Adults with Intellectual Disabilities

JOURNAL OF APPLIED RESEARCH IN INTELLECTUAL DISABILITIES, Issue 6 2008
Marguerite Ternes
Background, Since individuals with intellectual disabilities are often the only witnesses to alleged crimes, it is important to know their capacity to provide eyewitness testimony. Methods, Twenty-two participants with intellectual disabilities and 23 comparison group participants had their photographs taken by a confederate. One to two weeks following the photography session, participants were interviewed about the event and were asked to identify the photographer. Two misleading questions, to test for suggestibility, were asked at the end of the interview. Results, Comparison group participants performed significantly better than participants with intellectual disabilities with a target-present lineup, but no significant differences were found between participant groups with a target-absent lineup. Comparison group participants performed significantly better than chance with the target-absent lineup, but participants with intellectual disabilities did not. In the interview, participants with intellectual disabilities provided significantly fewer details than comparison group participants, and the details provided by both groups were mainly accurate. Participants with intellectual disabilities were significantly more likely to acquiesce to one of the suggestive questions than comparison group participants, but the two participant groups did not differ in likelihood of acquiescence for the other suggestive question. Conclusions, It seems that individuals with intellectual disabilities may make adequate witnesses if they are interviewed in a non-leading manner. Future research should examine methods to improve their eyewitness identification performance. [source]


Boys will be boys: a pre-line-up gameplay has beneficial effects on boys' but not girls' identification performance

JOURNAL OF INVESTIGATIVE PSYCHOLOGY AND OFFENDER PROFILING, Issue 3 2006
Eric Rassin
Abstract Fifty children, aged between 4 and 7 years, underwent a sequential photo line-up procedure in order to identify a man they had met the previous day. Half of the participants engaged in a pre-procedure gameplay with the female interviewer. It was hypothesised that the game would stimulate rapport building and would ultimately result in an increased performance during the line-up procedure. The beneficial effect was indeed observed, but only for the male participants. This finding suggests that gameplay may be a fruitful strategy to decrease child witness discomfort and to increase participation. Copyright © 2006 John Wiley & Sons, Ltd. [source]


Articulatory suppression attenuates the verbal overshadowing effect: a role for verbal encoding in face identification

APPLIED COGNITIVE PSYCHOLOGY, Issue 2 2006
Lee H. V. Wickham
Verbal overshadowing is the phenomenon that verbally describing a face between presentation and test can impair identification of the face (Schooler & Engstler-Schooler, 1990). This study examined the effects of articulatory suppression and distinctiveness upon the magnitude of the verbal overshadowing effect. Participants engaged in articulatory suppression or a control task whilst viewing a target face. They then either described the face or completed a distractor task before selecting the target face from a line-up. This was repeated for 12 trials. Articulatory suppression impaired identification performance overall, and reduced the negative effects of description to non-significance, whereas the control group demonstrated the standard verbal overshadowing effect. Typical faces showed verbal overshadowing, whereas distinctive faces did not. These results are consistent with the view that verbal overshadowing arises because the description of the target face creates a verbal code that interferes with a verbal code created spontaneously during encoding. Copyright © 2006 John Wiley & Sons, Ltd. [source]


A robust method for the joint estimation of yield coefficients and kinetic parameters in bioprocess models

BIOTECHNOLOGY PROGRESS, Issue 3 2009
V. Vastemans
Abstract Bioprocess model structures that require nonlinear parameter estimation, thus initialization values, are often subject to poor identification performances because of the uncertainty on those initialization values. Under some conditions on the model structure, it is possible to partially circumvent this problem by an appropriate decoupling of the linear part of the model from the nonlinear part of it. This article provides a procedure to be followed when these structural conditions are not satisfied. An original method for decoupling two sets of parameters, namely, kinetic parameters from maximum growth, production, decay rates, and yield coefficients, is presented. It exhibits the advantage of requiring only initialization of the first subset of parameters. In comparison with a classical nonlinear estimation procedure, in which all the parameters are freed, results show enhanced robustness of model identification with regard to parameter initialization errors. This is illustrated by means of three simulation case studies: a fed-batch Human Embryo Kidney cell cultivation process using a macroscopic reaction scheme description, a process of cyclodextrin-glucanotransferase production by Bacillus circulans, and a process of simultaneous starch saccharification and glucose fermentation to lactic acid by Lactobacillus delbrückii, both based on a Luedeking-Piret model structure. Additionally, perspectives of the presented procedure in the context of systematic bioprocess modeling are promising. © 2009 American Institute of Chemical Engineers Biotechnol. Prog., 2009 [source]