PSYC 3020 Lecture Notes - Lecture 4: Lie Detection, Stereotype Threat, Black Canadians
4 Apr 2018
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Document Summary
Police are like a human lie dector, reading the nonverbal cues that are associated with lying. Canadian courts have expressed great confidence in jurors. Watching how people behave on the stand. Ability to tell if they are telling the truth. Dominant judicial attitude appears to be that assessing credibility is a fairly straightforward matter. Despite decades of research effort to maximize the accuracy of deception judgments, detection rates barely budge . Training: interrogators are trained to read verbal and nonverbal cues. Many cues (crossing legs, fidgeting, voiding eye contact) are flawed, they are not consistent of all people. Mann, vrij & bull (2004): police judgements about deception are worse when relying on specific verbal and no verbal cues emphasized in training. Stereotype threat: anxiety or concern experienced when at risk of confirming a negative stereotype about their social group. Stereotype threat and deception may produce similar reactions in individuals (heightened arousal, self-regulation, heightened cognitive load)
