characteristics of psychopaths Deficits in non verbal

Characteristics of psychopaths deficits in non verbal

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Interpersonal/affective characteristics of psychopaths Deficits in non-verbal emotional processing Language appears to be superficial Seems to lack affective cognitions Exhibit less fear and anxiety pseudo/sham emotions Pathological deceit Con and manipulate people
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Cognitive/Learning characteristics of psychopaths Passive-avoidance learning: Failure to learn to from behaviors that punish General cognitive impulsiveness and hypersensitivity to rewards Narrowed attentional focus Specific deficit in automatic processing that results in unresponsiveness to contextual cues Moral reasoning deficits are in question Biological bases of psychopathy May demonstrate reduced fear in anticipation of unpleasant or painful stimuli Do NOT exhibit global neuropsychological deficits Exhibit functional brain deficits: Cerebral cortexes are less active Fail to use certain parts while processing emotional stimuli Woman and psychopathy Probably valid as a construct Prevalence 11% -- 23% Mean PCL-R score lower for women than men Factor structure appears to be different for women than men, many exhibit symptoms differently Relationship to recidivism not shown to be as strong as with men, but may be related to rapid recidivism Children/adolescents and psychopathy Need to be careful when extended the construct to children and adolescents PCL:YV is the comparison measure Appears to be viable construct with similar properties as it does in adults Debate about appropriateness of diagnosis Chapter 7: Evaluating criminal suspects Detecting deception - accuracy Bond and DePaulo (2006) determined that people are correct only 54% of the time, hardly better than chance Truth bias in general population, Lie bias among police People generally have a truth bias (biased toward judging statements as being truthful) Training may be useful to police and parole officers who tend to be biased toward judging statements as lies, even when they are true, a phenomenon known as lie bias or investigator bias Polygraph The polygraph (sometimes referred to as the lie detector) is a computer-based machine that measures blood pressure, electrodermal activity, and respiratory changes during questioning Is a polygraph admissible evidence in court? NO
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Control Question Test - CQT - Relevant vs. Comparison questions In the Control Question Test (CQT), the polygrapher asks a series of questions and focuses on responses to two kinds of questions Relevant questions inquire about the crime under investigation Comparison questions are not directly concerned with the crime but are designed to induce an emotional reaction because they cover common misdeeds that nearly all of us have committed Concealed Information Test - CIT - and limitations The goal of Concealed Information Test (CIT) is to detect the presence of concealed information in the suspect’s mind, not to detect lying There are limitations
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