FBS 2024 Exam 2 Questions with 100% Correct Answers
Commission - ANSWERSSaying something untrue (alibi)
Omission - ANSWERSLeaving out details
Past experiences - ANSWERSCrimes committed
Future plans - ANSWERSConspiracy, terrorism
Lay people good lie detectors? - ANSWERSBetter than police because they are not trained
Police good lie detectors? - ANSWERSNot better but more confident because they are trained to detect deception using cues not indicative of lying
Why are we so bad? - ANSWERS-flawed interpretation of behavior -confirmation bias
-lack of feedback on accuracy of detection techniques
Liars stereotype - ANSWERSAvert gaze, squirm, stutter, touch themselves
Confirmation bias - ANSWERSa tendency to search for information that supports our preconceptions and
to ignore or distort contradictory evidence
Relation to deception detection - ANSWERSPolice overconfident in their detecting deception abilities
-develop belief that suspect is lying during the interview Polygraph underlying theory - ANSWERSLying will cause physiological changes
Polygraph measures - ANSWERSHeart beats faster, breath quicker, blood pressure increases, skin moisture
Weaknesses and limitations - ANSWERS-emotionally non-reactive people -no guarantee that innocent people won't react strongly to questions about a crime -convince suspect the polygraph is flawless -lack of standardization -use of countermeasures -ethical grounds (personal questions)
Research on the polygraph - ANSWERS-they claim high accuracy rates
fMRI - ANSWERSDetects where lying occurs -pre-frontal cortex and parietal cortex (spontaneous:areas associated with visual imagery, rehearsed: episodic memories)
Limitations of fMRI - ANSWERSExpensive, not portable, requires cooperation -large individual brain differences
EEG - ANSWERSLying will cause arousal and warming around the eyes
-detects when lying occurs -records neural impulses continuously
Computer voice stress analysis test (CVSA) - ANSWERSSimilar to polygraph
Criterion-based content analysis (CBCA) - ANSWERSAssess truthfulness of a descriptive event -written statements
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