Memory and False Memories: Experiments, Cases, and Mnemonics
Introduction to Memory and False Memories
Car Crash Experiment (Loftus Research on Eye Witness Testimony)
- Scenario: Participants watched the exact same video of two cars crashing into each other.
- Methodology: Participants were divided into thirds, and each third was asked a different question about the cars' speed.
- Group 1 Question: "about how fast were the cars going when they smashed into each other?"
- Group 2 Question: "about how fast were the cars going when they hit each other?"
- Group 3 Question: "about how fast were they going when they contacted?"
- Results (Average Speed Given by Participants):
- "Smashed": \text{ miles per hour}
- "Hit": Averages were "a little bit smaller" than for "smashed".
- "Contacted": Averages were "significantly different" (smaller) than for "hit".
- Implication: The wording of questions can lead to very different responses. This has critical relevance in legal contexts, as a difference of just "10 miles" per hour could change a charge to manslaughter. The manner in which witnesses are questioned profoundly matters.
False Memory Demonstration (Loftus)
- Objective: To demonstrate how to implant a false memory in an individual.
- Participants: Graduate students used their younger siblings as participants.
- This was based on the premise that, back then, most people had younger siblings.
- Step-by-Step Procedure:
- Initial Inquiry: Ask the grad student and the sibling's mother if the child was ever lost in a mall.
- Participant Selection: Only children whose mothers confirmed they had never been lost in a mall were included in the study.
- Memory Suggestion: The grad student would then sit with their younger sibling and state, "remember that time you were lost in a mall?"
- Initial Response: Typically, young children would deny remembering, as the event did not happen.
- Persistent Prompting: The grad student would encourage the sibling: "you really just need to think about it. Try to remember it, try to see it in your head when you were."
- Long-Term Outcome: After a week and a month, a substantial portion of the children (specifically ) began to claim they did remember being lost in the mall.
- Elaborated Details: A smaller percentage of these children even added fabricated details to their false memories.
- Example: One child recounted, "oh yeah I remember it and there was this guy and he had a plaid shirt on and he held my hand and he took me to my mom and my mom was crying and I was excited to see her." This was a constructed "false memory."
- Elaborated Details: A smaller percentage of these children even added fabricated details to their false memories.
Bugs Bunny at Disneyland Experiment
- Context: This experiment was conducted in the 1970s and is noted as something that "wouldn't work now."
- Question Asked: Participants were asked, "did you see Bugs Bunny at Disneyland and do you know where?"
- Outcome: People would "just remember it," despite Bugs Bunny being a Warner Bros. character and not typically found at Disneyland.
The 9/11 Flashbulb Memory Study
- Initiation: Loftus and her team began this research in the 1970s, and others (including replicated studies) continued it.
- Post-9/11 Context: A study conducted after the 9/11 attacks focused on students in colleges located in the affected area.
- Immediate Data Collection: Students were asked immediately after 9/11 to write down:
- Their exact location when the event occurred (e.g., "in your dorm," "in class," "somewhere else").
- A "really good description" of their experience.
- Whether they saw "the tower fall live on TV" (a yes/no question), as this event was broadcast live.
- Follow-Up:
- Interim: No contact was made with participants for six months.
- Recall Sessions: Participants were brought back after six months, and again after one year.
- Findings:
- Inconsistencies: Many students' later recollections differed from their immediate written accounts.
- For instance, students might claim they were in their room when they were actually in class, or vice versa.
- False Live Viewing: "A really, really large majority" of them stated they were watching the TV live when the towers fell.
- Confrontation with Original Data: When presented with their original handwritten accounts (what they had previously stated "the day after"), participants acknowledged the discrepancies.
- Memory Correction: Students often rationalized these differences by saying, "well I was wrong then," believing their current memory was more accurate or reliable because "it's still it's actually that's what you see in your head."
- Dynamic Nature of Memory: This illustrated the principle that "every time you tell it, it could change a little."
- Explanation for False Live Viewing: The frequent replaying of the towers falling on TV during a "really stressful time" caused many to mix up seeing it live with seeing it played repeatedly later that night or in subsequent days.
- Inconsistencies: Many students' later recollections differed from their immediate written accounts.
The Pervasiveness of False Memories
Universal Experience: "Every single person in this room has false memories."
Common Manifestation: This is most often observed in discussions with siblings or cousins from childhood, where disagreements arise over past events ("wait a second, you didn't do that, I did that" or "no, that's not what happened").
Memory Reliability: "We don't know if it was right unless there's a record but memories get messed up."
Case Study: Paul Ingram and the Satanic Panic
- Context (1980s):
- Reconstructed Memories: Therapists at conferences discussed the idea that children might not remember traumatic events but that these memories could be "brought back" through techniques like writing about them.
- Satanic Panic: This period was marked by a widespread belief in the existence of Satan worshippers, often featured heavily in news, despite "never really had any evidence for that."
- Cultural Indicators: People wearing all black, Metallica or ACDC shirts were associated with "Satan worshipers" or "devil worshipers."
- Warnings: Parents were warned about "devil worshippers coming to your school and trying to recruit you."
- Parental Scrutiny: Parents monitored their children's reading materials.
- Role-Playing Games: Games like Dungeons and Dragons were often viewed with suspicion in this context.
- Context (1980s):
Satan Worship Allegations and False Confessions
Conference Guidance: Panels at the conference advised therapists that some clients might be unrecognized victims of "Satan worship" who simply couldn't remember. They recommended techniques like hypnosis, writing about the supposed events, or imagining them to facilitate "remembering."
Consequences: This approach led to widespread "chaos" and numerous individuals being charged with "satanic worship."
Detailed Account of Paul Ingram's Case:
- Paul Ingram's Role: He was a sheriff in Washington state.
- Daughter's Camp Experience: One of his daughters attended a camp where a counselor observed unusual behavior:
- The daughter wanted to remain in bed.
- She showed reluctance to participate in activities.
- She exhibited excessive worry.
- She reported feelings of sadness.
- Counselor's Interpretation: Instead of considering initial possibilities like depression or anxiety, the counselor concluded it was "satan worship."
- Counselor's Intervention: The counselor approached the daughter, suggesting, "I think you might have been a victim of Satan worship."
- Daughter's Initial Denial: The teenager initially rejected the idea, asking, "no I wasn't. What are you talking about?"
- Counselor's Persuasion: The counselor responded, "That's what happens when you've been a victim of Satan worship. You just can't remember it but you have all the signs."
- Memory Construction: The daughter was then instructed to "go and imagine the scenarios in which saint worship happened to her and to write about them. Like just start writing." Over time, she eventually affirmed, "yes I remember I was a victim of Satan worship."
- Fabricated Memories: The daughter's reconstructed memories included severe allegations:
- She claimed her father, Paul Ingram, was the head of a "Satan club."
- Members of the sheriff's department were allegedly part of this group.
- She recalled rituals occurring on a "big concrete slab in the woods."
- She and her sister were supposedly made to lie on the slab and were cut "all over."
- Initially, her sister denied these events but eventually also "remembering this stuff too."
- The most extreme claims involved the girls being impregnated during rituals, being forced to give birth on the concrete block, and the babies then being "eaten" by the group members. These claims were believed by people during the "satanic panic" of the 1980s.
False Memory Experts and Systemic Issues
Paul Ingram's Arrest and Interrogation:
- Paul Ingram was called in by the authorities, informed of his daughter's accusations, and arrested.
- Initially, he denied involvement, stating, "I didn't do it."
- Interrogation Technique: Investigators suggested, "maybe there's a good Paul and there's a bad Paul. And they don't know each other," instructing him to "go think about it, maybe write to different parts of you."
- False Confession: Ingram eventually concluded, "my daughters wouldn't lie…it must be true," and subsequently "plead guilty or he gave a confession."
- Disparity for Others: Other individuals from the sheriff's department who were accused did not confess and were released, as "it didn't happen."
- Lack of Evidence: Despite the absence of a "concrete slab in the middle of the woods" and other corroborating evidence, Paul Ingram was still pursued.
Paul Ingram's Imprisonment and Later Retractions:
- He was sent to prison in the 1980s.
- Daughters' Realization: Over time, his daughters realized, "this isn't true, it was never true." They acknowledged, "I have memories of it but I don't think they're real. I think that the therapist made me think they're real."
- Efforts for Release: The daughters attempted to facilitate their father's release from prison.
- Lack of Physical Evidence: Tests confirmed neither girl had "ever been pregnant," and they had no "scars all over them from cutting." The only scar one girl had was from an "appendix removed."
- Continued Incarceration: Despite the lack of evidence and the daughters' retractions, authorities "wouldn't let him out."
Richard Ofshe's Intervention:
- Role: Richard Ofshe, described as an "awesome false memory expert."
- Method: He visited the prison and challenged the daughters, asking them to "tell me something satanic that did not happen."
- Demonstration: They conceived of a new fabricated event, and Ofshe was then able to elicit a confession from Paul Ingram for this entirely new, nonexistent crime.
- Court Testimony: Ofshe used this demonstration in court to highlight Ingram's susceptibility to suggestion, stating, "look I got him to confess to a whole different crime that he didn't do."
Paul Ingram's Release and Impact:
- Paul Ingram remained in prison, despite Ofshe's efforts.
- He was eventually released "sometime early two thousand something like that," having spent "like eighteen years in there."
- Significance: This case underscores how "false memories can be really bad" and frequently arise in criminal investigations, which is why much research is dedicated to memory and how it changes.
Elizabeth Loftus and Memory Research:
- Elizabeth Loftus (pictured with students) is a prominent researcher in this field.
Source Monitoring Errors:
- Definition: These occur when individuals remember a face or piece of information but misattribute the source of where they encountered it.
- Legal Consequence: Such errors can lead to wrongful convictions, where individuals are imprisoned for crimes "they didn't do."
Introduction to Mnemonics
- Definition: Mnemonics are "mental tricks" or "ways to improve your memory."
- Techniques: They involve using acronyms (e.g., using the word "shots" to remember a list, where S, H, O, T, S each stand for something).
- Core Principle: Mnemonics fundamentally rely on organizing information and establishing a "visual framework" for it.
- Examples of Application:
- One individual memorized "a thousand digits of pi," claiming "nothing special about my memory," and taught his wife to do the same.
- Another person memorized "30,000 digits" of pi.
- "Song for list" is considered "one of the really good ways to remember stuff," as memories are often tied to songs for context.
Mnemonic Techniques: Peg Word System
- Peg Word Mnemonic: This memory technique involves associating items with a pre-memorized list of "peg words."
- Methodology:
- Memorize Peg Words: First, memorize a set of "peg words" that rhyme with numerals from one to ten.
- Form Mental Images: Create vivid mental images for each peg word.
- Interactive Imaging: Form an interactive mental image combining the study item with its corresponding peg word.
- Cueing: Use the peg words as cues to recall the associated study items.
- Exercise Instructions: Participants were told not to write anything down yet, focusing on memorization, to be followed by a "tape test."
- Partial Peg Word List (as presented):
- One: "bun" (speaker acknowledged potential accent differences affecting the rhyme)
- Two: "shoot"
- Three: "tree"
- 34: "door"