📚 Quick Study Guide: False Memories & Eyewitness Testimony
- 🧠 False Memory: A recollection of an event, or details of an event, that did not actually occur. It can feel as vivid and real as a true memory.
- 🔍 Key Mechanisms:
- 🗣️ Suggestibility: The tendency to incorporate misleading information from external sources (e.g., leading questions, post-event discussion) into personal recollections.
- 📝 Misinformation Effect: When misleading information presented after an event alters a person's memory of the event itself. Pioneered by Elizabeth Loftus.
- 🔄 Source Monitoring Errors: Difficulty in remembering the source of a memory (e.g., confusing what was seen with what was heard or imagined).
- ⏳ Memory Contamination: Over time, original memories can be overwritten or blended with new, incorrect information.
- ⚖️ Implications for Eyewitness Testimony: False memories can lead to wrongful convictions, as eyewitness confidence does not necessarily correlate with accuracy, especially after repeated questioning or suggestive procedures.
- 📜 Notable Case Studies:
- 🚨 Ronald Cotton Case: A landmark case where Jennifer Thompson misidentified Cotton as her rapist due to suggestive police procedures and memory contamination, leading to his wrongful conviction and later exoneration by DNA.
- 🚗 Loftus & Palmer (1974) Car Crash Study: Demonstrated the misinformation effect by showing how the wording of a question ("smashed" vs. "hit") influenced participants' perception of car speed and later recall of seeing broken glass.
- 👧 Lost in the Mall Study (Loftus & Pickrell, 1995): Showed that it's possible to implant vivid false memories of childhood events (like being lost in a mall) in some individuals.
- 🛡️ Safeguards: Cognitive interviews, double-blind lineups, recording interviews, and educating juries about memory fallibility are crucial to mitigate risks.
📝 Practice Quiz
- Which psychological phenomenon describes the tendency for misleading information presented after an event to alter a person's memory of the event itself?
A. Source Monitoring Error
B. Encoding Specificity Principle
C. Misinformation Effect
D. Retroactive Interference - The case of Ronald Cotton is a prominent example illustrating which of the following?
A. The reliability of child eyewitness testimony.
B. The danger of suggestive identification procedures and false memories.
C. The effectiveness of hypnosis in memory retrieval.
D. The impact of flashbulb memories on accuracy. - Elizabeth Loftus's research, particularly the car crash study, primarily demonstrated what about memory?
A. That memory is highly stable and resistant to external influence.
B. That emotional events are remembered with perfect accuracy.
C. That memory can be easily distorted by post-event information.
D. That eyewitness confidence is a strong indicator of accuracy. - A witness confidently identifies a suspect, but later DNA evidence proves they were incorrect. This scenario best highlights the issue that:
A. Eyewitness confidence always correlates with accuracy.
B. False memories are rare in high-stakes situations.
C. Confidence in memory does not guarantee accuracy.
D. All memory is inherently unreliable. - What is a "source monitoring error" in the context of eyewitness testimony?
A. Forgetting the original event entirely.
B. Confusing what was imagined with what was actually perceived.
C. The inability to recall details of the event due to stress.
D. Deliberately fabricating a memory to mislead investigators. - Which of the following is considered a safeguard against false memories in eyewitness identification procedures?
A. Using leading questions during interviews.
B. Conducting single-person lineups.
C. Informing the witness that the perpetrator may or may not be in the lineup.
D. Repeatedly questioning the witness about the event. - The "Lost in the Mall" study by Loftus and Pickrell (1995) aimed to demonstrate:
A. The accuracy of childhood memories.
B. The ease with which false memories can be implanted.
C. The impact of trauma on memory recall.
D. The role of schema in memory reconstruction.
Click to see Answers
1. C: The Misinformation Effect describes how post-event information can alter memory.
2. B: The Ronald Cotton case is a classic example of how suggestive procedures led to a wrongful conviction based on false memory.
3. C: Loftus's car crash study showed that the wording of questions can significantly distort memory.
4. C: This scenario highlights that a witness's confidence in their memory does not necessarily equate to its accuracy.
5. B: A source monitoring error involves difficulty distinguishing between the true source of information, often confusing imagined events with real ones.
6. C: Informing the witness that the perpetrator may or may not be in the lineup reduces suggestibility and the pressure to choose someone.
7. B: The "Lost in the Mall" study is famous for demonstrating that vivid false memories can be implanted in individuals.