PSYC 317 Lecture Notes - Lecture 3: Eyewitness Memory, Kaleidoscope, Electric Light
Document Summary
Poor memory for assailant"s appearance the vague description to the police: lineups procedure, expectations, delay in id nonverbal influences, multiple lineups, confirmatory feedback, cotton appearance constitutes post event information. Altered memory now included cotton"s appearance: as time passes. Jennifer still thinks a lot about the rape: the memory she thinks about includes cotton"s face. Progressively stronger memory for cotton"s appearance: at trial. Jennifer has a very strong memory for cotton"s appearance. Jennifer has strong expectations from seeing cotton sitting in the defendant chair. Eye witness testimony: powerful evidence in court (close to confession evidence, studies find that jurors convict more often with eyewitness evidence, results: Eyewitness + discrediting evidence = % conviction rate. Research: what factors affect eyewitnesses: estimator factors (variables) inherent in the event, system factors (variables) can occur at the police station, environmental factors. If perception occurs with the scotopic system the quality of memory will be affected: event duration. More time doesn"t compensate for poor lighting: frequency.
