Eyewitness Testimony: Misperceptions (04:31)
Eyewitness testimonies are given great credence by courts and juries. A case study reveals the inaccuracy of many eyewitness accounts, and the misperceptions people use when pointing people out as perpetrators.
Variations in Eyewitness Accounts (01:30)
Eyewitnesses to videos of staged crimes report a variety of descriptions of the perpetrator and a variety of accounts of what happened.
Eyewitness Testimony: Memory (04:32)
Memory serves to help people recollect events and people from the past in order to plan for the future. Human beings have complex "knowledge structures" about the most commonly encounter things. Vocabulary: constructive memory and schemas.
Questioning Techniques and Memory (03:07)
Psychological research shows that people's reconstruction of events can be influenced by the question asked. Subtle changes in questions influence witnesses to construct false memories. Vocabulary: leading questions
Leading Questions and Eyewitness Accounts (03:58)
Questions cause eyewitnesses to provide inaccurate testimony. They are influenced by leading questions. People integrate false information into their memories. Vocabulary: "Interview, or experimenter, effect."
Reliability of Eyewitness Testimony (03:16)
Police reconstructions of a criminal activity help to jog witnesses' memories. Unintentional inaccuracies, however, may create false recall in an eyewitness. Hypnosis does not produce entirely accurate eyewitness accounts.
Cognitive Interviews of Eyewitnesses (04:28)
Psychologists develop a cognitive approach to interviewing witnesses in which the witnesses review and re-experience the events. Witnesses report without questions from police. Eyewitness accounts are likely to be somewhat unreliable.
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