International Hypnosis Research Institute - Forensics

Activate Your Life with EFT: Case Study ? The Fear of Public Speaking

Mon, 08 Mar 2010 00:32:00 -0500

by Andrew McCombe, BPhEd Emotional Freedom Techniques (or EFT) is a revolutionary new healing aid being used worldwide by those in the healing professions and because of it's simplistic and complementary nature has become an excellent addition to the coaching tool box. EFT is a psychological form of acupuncture, but without the needles. Instead, you stimulate well established energy meridian points on your body by tapping on them with your fingertips whilst repeating specific statements. The process is easy to memorize and is portable so you can do it anywhere. [More]

Eyewitness identification evidence and innocence risk.

Mon, 25 May 2009 16:40:00 -0500

It is well known that the frailties of human memory and vulnerability to suggestion lead to eyewitness identification errors. However, variations in different aspects of the eyewitnessing conditions produce different kinds of errors that are related to wrongful convictions in very different ways. We present a review of the eyewitness identification literature, organized around underlying cognitive mechanisms, memory, similarity, and decision processes, assessing the effects on both correct and mistaken identification. In addition, we calculate a conditional probability we call innocence risk, which is the probability that the suspect is innocent, given that the suspect was identified. Assessment of innocence risk is critical to the theoretical development of eyewitness identification research, as well as to legal decision making and policy evaluation. Our review shows a complex relationship between misidentification and innocence risk, sheds light on some areas of controversy, and suggests that some issues thought to be resolved are in need of additional research. Psychon Bull Rev. 2009 Feb;16(1):22-42. Clark SE, Godfrey RD. Psychology Department, University of California, Riverside, California 92521, USA. clark@ucr.edu

Inventing stories: forcing witnesses to fabricate entire fictitious events.

Mon, 27 Apr 2009 16:32:00 -0500

Studies of the forced fabrication effect have shown that participant witnesses are prone to developing false memories for specific items or details that they have been forced to fabricate earlier (e.g., what type of hat someone wore). Building on these earlier findings, the present study assessed whether participants would develop false memories if forced to fabricate entire fictitious events that were more complex and extended in time and involved people, locations, and actions that they had never seen. Participants vehemently resisted fabricating these events, and false memory development over the short term (1-week recognition test) was limited. However, after 8 weeks, participants freely reported their forced fabrications nearly 50% of the time and did so even when they had correctly and publicly rejected them earlier on the 1-week recognition test. This is the first evidence that participant witnesses will freely incorporate into their eyewitness accounts entire fictitious events that they have earlier been forced to fabricate. Psychon Bull Rev. 2008 Dec;15(6):1190-5. Chrobak QM, Zaragoza MS. Department of Psychology, Kent State University, Kent, OH 44242, USA. qchrobak@kent.edu

The co-witness misinformation effect: memory blends or memory compliance?

Fri, 20 Mar 2009 15:34:00 -0500

For 30 years hundreds of researchers have shown participants videos and slide-sequences of events, presented the participants with misleading information, and found that this misinformation distorted their memories. The purpose of this study was to establish whether those misled participants are reporting a memory blend of the two sources of information or whether they are simply complying with the post-event information. A total of 92 participants were shown one of two versions of six different videos, which included some subtle differences. After having watched each video individually, participants were paired with someone who had seen the other version and they discussed the clips together. They then individually answered questions about the videos, and their responses showed that some of the distorted memories were blends of the original information and the post-event information. The implications of these findings are discussed. Memory. 2008 May;16(4):436-42. Skagerberg EM, Wright DB. Psychology Department, University of Sussex, Brighton, UK. elins@sussex.ac.uk

Biased lineup instructions and face identification from video images.

Mon, 10 Nov 2008 14:40:00 -0500

Previous eyewitness memory research has shown that biased lineup instructions reduce identification accuracy, primarily by increasing false-positive identifications in target-absent lineups. Because some attempts at identification do not rely on a witness's memory of the perpetrator but instead involve matching photos to images on surveillance video, the authors investigated the effects of biased instructions on identification accuracy in a matching task. In Experiment 1, biased instructions did not affect the overall accuracy of participants who used video images as an identification aid, but nearly all correct decisions occurred with target-present photo spreads. Both biased and unbiased instructions resulted in high false-positive rates. In Experiment 2, which focused on video-photo matching accuracy with target-absent photo spreads, unbiased instructions led to more correct responses (i.e., fewer false positives). These findings suggest that investigators should not relax precautions against biased instructions when people attempt to match photos to an unfamiliar person recorded on video. J Gen Psychol. 2008 Jan;135(1):23-36. Thompson WB, Johnson J. Department of Psychology, Niagara University, Niagara Falls, NY 14109, USA. wbt@niagara.edu

Stereotypes influence false memories for imagined events.

Fri, 31 Oct 2008 14:37:00 -0500

Two experiments tested the influences of vivid imagery and person schemata on eyewitness accuracy. Participants watched an event sequence including actors performing stereotype-consistent and inconsistent actions. Additionally, participants either read descriptions of actions (Experiment 1) or vividly imagined actions (Experiment 2). After either 30 minutes or 2 days, recognition memory, source memory, and remember/know judgements were made. After 2 days, false alarms to imagined events increased, relative to the 30-minute test; those false alarms were more often misattributed to stereotype-consistent actors, relative to the same actions in the reading condition. In addition, the accompanying remember judgements were higher for false alarms to imagined events, relative to read events, regardless of stereotype consistency. Overall the results suggest that, over time, vivid imagery reinforces schema activation, increasing stereotype-consistent false memories. Memory. 2008 Feb;16(2):97-114. Kleider HM, Goldinger SD, Knuycky L. Department of Psychology, Georgia State University, Atlanta, GA 30030, USA. hkleider@gsu.edu

Interrogative suggestibility, compliance and false confessions among prisoners.

Wed, 29 Oct 2008 14:36:00 -0500

BACKGROUND: Interrogative suggestibility and compliance are important psychological vulnerabilities during interrogation. The aim of the study was to investigate the relationship of suggestibility and compliance with childhood and current symptoms of attention deficit hyperactivity disorder (ADHD). Compliance has not been studied previously in relation to ADHD. A further aim was to investigate the relationship between ADHD and the reporting of having made a false confession to the police. METHOD: The participants were 90 male prisoners, all of whom had completed the Gudjonsson Suggestibility and Compliance Scales (GSS and GCS) within 10 days of admission to the prison. Childhood ADHD symptoms were screened by the Wender Utah Rating Scale (WURS) and current adult symptoms by the DSM-IV Checklist criteria for ADHD. RESULTS: Half of the prisoners (50%) were found on screening to meet criteria for ADHD in childhood and, of those, over half (60%) were either fully symptomatic or in partial remission of their symptoms. ADHD symptoms were found to be significantly associated with compliance, but not with suggestibility. The relationship with compliance was stronger (effect size) in relation to current than childhood symptoms. The ADHD symptomatic groups were significantly more likely to claim that they had made a false confession to the police in the past. CONCLUSIONS: The findings raise important questions about the potential vulnerability of adults with ADHD symptoms in terms of their ability to cope with interrogation. Psychol Med. 2008 Jul;38(7):1037-44. Epub 2008 Feb 14. Gudjonsson GH, Sigurdsson JF, Bragason OO, Newton AK, Einarsson E. Department of Psychology, Institute of Psychiatry, London, UK. g.gudjonsson@iop.kcl.ac.uk

Eye Witness Testimony -- Worthless at Best

Tue, 08 Jul 2008 09:28:00 -0500

Are memories ever accurate? If not, does this mean that our legal system can never rely upon eye witness testimony? This is a very important question as many convictions and even capital punishments have been meted out based upon such. All sensory observations are filtered through our brain maps, which develop rapidly during the first year and a half and the first six years of life and steadily for the rest of life. As only 20% of our sight actually an ocular function, what we see is basically a matter of past experiences. This means that each and everyone of us is actually living in some type of "parallel universe". Okay. So this means that two eye witnesses will actually "see" two different accounts of the same event. Furthermore, if what we believe that we "see" is contrary to habituated memories then our experience may have absolutely nothing to do with reality. Magicians call this an illusion. THEREFORE, I pray that I never have to take my chances in a court of law. The International Hypnosis Research Institute is a member supported project involving integrative health care specialists from around the world. We provide information and educational resources to clinicians. Dr. Brunson is the author of over 150 self-help and clinical CD's and MP3's.

The effect of question format on resistance to misleading postevent information and self-reports.

Wed, 18 Jun 2008 02:42:00 -0500

Participants were administered a standard tape-recorded version of the Harvard Group Scale of Hypnotic Susceptibility, Form A (HGSHS:A) and then a modified version of the HGSHS:A response booklet that asked each participant to report which suggested behaviors they performed during the procedures. These response booklets were altered to include 3 additional suggestions not offered during the hypnotic procedures. Half the participants were administered the questions in the response booklet in the standard format ("I performed the suggested behavior" versus "I did not perform the suggested behavior"). The remaining participants were offered a third alternative to each question ("I do not remember this occurring"). As predicted, participants offered the 3rd alternative were significantly less likely to report performing actions that were never suggested during the procedures. Further, these participants reported performing fewer suggested behaviors (i.e., reported passing fewer of the true Harvard items) than participants in the standard 2-alternative condition. Int J Clin Exp Hypn. 2008 Apr;56(2):198-213. Eisen ML, Oustinovskaya M, Kistorian R, Morgan DY, Mickes L. California State University, Los Angeles, California, USA.

The Validity of Eyewitness Accounts: What you see is what you think!

Wed, 04 Jun 2008 10:10:00 -0500

by Tim Brunson DCH Eyewitness testimony is far from being full-proof. Despite the assumption that witnesses under oath are honest, sincere, and credible and that they claim that their memories are clear and accurate, there may be sufficient discrepancies. Witnesses may remember accurately, but misremember what they originally perceived. [More]

Eye-witness memory and suggestibility in children with Asperger syndrome.

Tue, 27 May 2008 09:36:00 -0500

Individuals with autism spectrum disorders (ASD) present with a particular profile of memory deficits, executive dysfunction and impaired social interaction that may raise concerns about their recall and reliability in forensic and legal contexts. Extant studies of memory shed limited light on this issue as they involved either laboratory-based tasks or protocols that varied between participants. METHOD: The current study used a live classroom event to investigate eye-witness recall and suggestibility in children with Asperger syndrome (AS group; N = 24) and typically developing children (TD group; N = 27). All participants were aged between 11 and 14 years and were interviewed using a structured protocol. Two measures of executive functioning were also administered. RESULTS: The AS group were found to be no more suggestible and no less accurate than their peers. However, free recall elicited less information, including gist, in the AS group. TD, but not AS, participants tended to focus on the socially salient aspects of the scene in their free recall. Both general and specific questioning elicited similar numbers of new details in both groups. Significant correlations were found between memory recall and executive functioning performance in the AS group only. CONCLUSIONS: The present study indicates that children with AS can act as reliable witnesses but they may be more reliant on questioning to facilitate recall. Our findings also provide evidence for poor gist memory. It is speculated that such differences stem from weak central coherence and lead to a reliance on generic cognitive processes, such as executive functions, during recall. Future studies are required to investigate possible differences in compliance, rates of forgetting and false memory. J Child Psychol Psychiatry. 2007 May;48(5):482-9. McCrory E, Henry LA, Happé F. The Anna Freud Centre, UCL, London, UK. e.mccrory@ucl.ac.uk

Interrogative pressure in simulated forensic interviews: the effects of negative feedback.

Tue, 20 May 2008 09:25:00 -0500

Much experimental research on interrogative pressure has concentrated on the effects of leading questions, and the role of feedback in influencing responses in the absence of leading questions has been neglected by comparison. This study assessed the effect of negative feedback and the presence of a second interviewer on interviewee responding in simulated forensic interviews. Participants viewed a videotape of a crime, answered questions about the clip and were requestioned after receiving feedback. Compared with neutral feedback, negative feedback resulted in more response changes, higher reported state anxiety and higher ratings of interview difficulty. These results are consistent with Gudjonsson and Clark's (1986) model of interrogative suggestibility. The presence and involvement of a second interviewer did not significantly affect interviewee responding, although trait anxiety scores were elevated when a second interviewer was present. The theoretical and applied implications of these findings are considered. Br J Psychol. 2007 Aug;98(Pt 3):455-65. McGroarty A, Baxter JS. Department of Psychology, University of Strathclyde, Glasgow, UK. a.mcgroarty@strath.ac.uk

A little elaboration goes a long way: the role of generation in eyewitness suggestibility.

Thu, 15 May 2008 09:21:00 -0500

Although research has documented that perceptual elaboration (e.g., imagery) can increase false memory, prior research has not ascertained whether such effects are due to the act of generation or simply from exposure to perceptual details. Two experiments explored this question using the eyewitness suggestibility paradigm. Experiment 1 compared the effect of generating descriptions of suggested items with the effects of reading elaborated versions of the items or the suggested items alone. Experiment 2 compared participants who generated descriptions to participants who read the same descriptions. Generating a description increased false memory and increased accurate memory for the items' actual source, relative to comparable control conditions. Generation also increased claims of having a (false) vivid recollection of the items in the event. Overall, the results suggest that conditions that require people to describe the appearance of objects that they do not remember are even more pernicious than conditions that involve exposure to such details. Mem Cognit. 2007 Sep;35(6):1255-66. Lane SM, Zaragoza MS. Department of Psychology, Louisiana State University Baton Rouge, Louisiana 70803, USA. slane@lsu.edu

Cognitive science and the law.

Wed, 02 Apr 2008 08:27:00 -0500

Numerous innocent people have been sent to jail based directly or indirectly on normal, but flawed, human perception, memory and decision making. Current cognitive-science research addresses the issues that are directly relevant to the connection between normal cognitive functioning and such judicial errors, and suggests means by which the false-conviction rate could be reduced. Here, we illustrate how this can be achieved by reviewing recent work in two related areas: eyewitness testimony and fingerprint analysis. We articulate problems in these areas with reference to specific legal cases and demonstrate how recent findings can be used to address them. We also discuss how researchers can translate their conclusions into language and ideas that can influence and improve the legal system. Trends Cogn Sci. 2007 Mar;11(3):111-7. Busey TA, Loftus GR. Department of Psychology, Indiana University, Bloomington, IN 47405, USA. busey@indiana.edu

Double jeopardy in the interrogation room for youths with mental illness.

Tue, 18 Mar 2008 08:15:00 -0500

Comments on the article by J. Owen-Kostelnik, N. D. Reppucci, and J. R. Meyer which reviewed the issues surrounding the police interrogation of minors. This commentary expands on the review by addressing the mental health status of youths who come into contact with police. It stems from two immutable facts: (a) The prevalence of mental illness among justice-involved youths is alarmingly high, and (b) mental illness by itself is a risk factor for false confession. These two facts place suspected youths in double jeopardy in the interrogation room. Am Psychol. 2007 Sep;62(6):609-11. Redlich AD. Policy Research Associates, Delmar, NY 12054, USA. aredlich@prainc.com