9.2: Reading -Memory Construction Errors

9.2: Reading -Memory Construction Errors 1/11/25

Misinformation and Imagination Effects
Experiment: Elizabeth Loftus (1974):	Two groups watched a car accident film and were asked differently worded questions. Key detail: "Smashed" vs. "hit" influenced speed estimates and memory of broken glass. Result: Those hearing "smashed" were more likely to recall non-existent glass fragments. Memories are changed after events.
Misinformation Effect	When misleading info changes how we remember an event. Examples: Yield sign → Stop sign, Coke can → Peanut can.
Behavioral Influence of Misleading Information	False memories can affect later attitudes and actions. Hearing vivid retellings can implant false details.
Experiment Example	Dutch students falsely believed they got sick from egg salad from a suggestion so they avoided it later.
Imagination Inflation	Imagining things can make you think they actually happened.
Experiment Example	Students imagined breaking a window or getting a skin sample removed. Result: 1 in 4 later thought these imagined events happened.
Experiment Example	Fake photos can make people believe events happened. Researchers added family members to a hot-air balloon photo. Result: Kids believed the event was real, felt confident about it, and later added even more fake details.
How common are false memories?	Surveys: About 25% of British/Canadian students realized some of their own memories were wrong.
TIP	Memories do NOT work like a video recording! Misleading info or suggestions can replace real memories. Memories can feel real but be false
Source Amnesia
Source Amnesia	Attributing (linking) an event we’ve experienced, heard about, read about, or imagined to the wrong source. Also called source misattribution.
False Memories	Misattribution contributes to false memories. Authors/songwriters may unintentionally plagiarize, believing ideas came from their imagination.
Jean Piaget Example	Piaget believed he remembered a nursemaid stopping his kidnapping. Later learned it was false, constructed from repeatedly hearing the storytelling.
Study on Preschoolers (Poole & Lindsay)	Children interacted with "Mr. Science," performing activities like blowing up a balloon with baking soda and vinegar. 3 Months Later: Parents read the children stories about Mr. Science. Stories included both real events and fictional ones. A new interviewer asked the children about what Mr. Science had done, including questions about fictional events (e.g., “Did Mr. Science have a machine with ropes to pull?”). Result: 4 in 10 of the children said Mr. Science did things that only happened in the fictional stories. Children confuse the real events they experienced with fictional ones from the stories their parents read.
Déjà Vu	The strange feeling that “I’ve been in this exact situation before,” even though you haven’t.
Déjà Vu Causes	Happens most to imaginative, well-educated young adults when they are tired or stressed. Some people think it’s caused by: Reincarnation (you lived the experience in a past life). Precognition (you saw it in a dream or vision before it happened).
Brain Processing of Déjà Vu	Familiarity comes from the temporal lobe of the brain. Conscious recall (remembering details) happens in the hippocampus and frontal lobe. If these brain parts don’t work together properly, you feel familiarity but can’t remember why, this creates the eerie sense of déjà vu.
Discerning True and False Memories
False Memories	when we remember things that didn’t happen or remember them differently.
Why do false memories happen	Misinformation effect: When new, wrong information changes our memory. Source amnesia: Forgetting where the memory came from. Example: Filling memory gaps with guesses. Over time, these guesses feel like real memories.
Why are false memories persistent?	They feel just as real as true ones. Study:
Experiment (Roediger & McDermott, 1995	Researchers read lists of related words like "candy," "sugar," "honey," and "taste." Later, participants were asked to recognize the words from a larger list. Result: 3 out of 4 participants falsely remembered a related but nonpresented word, like "sweet."
Why it happens	We remember the "gist" (general idea) better than exact details.
Real-world Examples of False Memories	Wrongful convictions: 79% of DNA-exonerated cases involved false eyewitness memories (Garrett, 2008). Relationships: In love: Couples who are in love might look back and believe their first meeting was “love at first sight,” even if it wasn’t really that intense. After a breakup: Exaggerate negative memories (“we never got along”). when there were good moments too.
How Emotions Shape Memory Example:	Current emotions influence how we remember the past. Feeling happy makes memories seem positive; feeling upset makes them seem negative.
Children’s Eyewitness Recall
Reliability of Children’s Eyewitness Description Experiment Example (Stephen Ceci & Maggie Bruck’s)	Children’s memories can be easily molded, making them unreliable. In a study, 3-year-olds who hadn’t received genital exams pointed to genital or anal areas on dolls, suggesting their memories could be shaped by questioning.
Suggestive Interviewing Technique Experiment Example	Children are highly influenced by suggestive questioning, which leads to fake memories A study asked children about a fictitious event (hospital visit with a mousetrap on their finger). After 10 weeks of repeated questioning, 58% believed it happened and described it in detail. Even when told a memory isn’t real, children may still insist it happened.
Effect of Suggestion	Even psychologists couldn’t reliably distinguish real memories from false ones. 78% of preschoolers who overheard a false remark about a missing rabbit later recalled seeing the rabbit when questioned suggestively.
Accurate Eyewitness Testimony	Children can be accurate eyewitnesses when they’re asked simple, clear, and neutral questions. Example: Studies showed kids gave correct answers when they hadn’t been influenced by adults and were asked non-leading questions by neutral interviewers. When are children’s answers most accurate? When: They haven’t talked to involved adults about the event. A neutral person asks clear, unbiased questions in the first interview.
Repressed or Constructed Memories of Abuse?
Concerns About “Recovered” Memories:	Research shows that therapist-guided methods, like hypnosis (deep focus) or visualization (mental images) , can lead to false memories. These false memories can cause real harm: Survivors may not be believed. Innocent people can be falsely accused.
Problems with Certain Therapy Techniques	Therapists might suggest patients were abused based on symptoms, even without evidence. Visualization and hypnosis can create false images that feel real. This can lead to accusations against innocent family members, breaking apart families.
	Sexual abuse happens: Abuse is more common than people thought, but there’s no single “abuse survivor symptom.” Injustice happens: Some innocent people are falsely accused, while guilty people sometimes get away with it. Forgetting happens: Abuse victims may forget because they were too young or didn’t understand what happened. Forgetting events is normal. Recovered memories: Sometimes we naturally recall forgotten events, and those memories are often true. Memories recovered with therapy techniques are less reliable. Early childhood memories are unreliable: We can’t recall events from before age 3 because our brains aren’t developed enough. Hypnosis/drug-induced memories are unreliable: These methods can lead to fake memories created by suggestions. Memories, real or false, are emotional: Both true and false memories can cause pain for everyone involved
Traumatic Memories:	Traumatic experiences, like witnessing violence or disasters, are usually remembered vividly, not repressed. Memories of traumatic events tend to stay sharp and persistent, as shown in examples like Holocaust survivors.
IMPORTANT	Memories recovered using hypnosis or other extreme techniques are very likely to be false.

Summary: Memory construction errors, such as the misinformation effect and imagination inflation, occur when misleading information or imagined events alter our memories. For example, changing words in a question can affect how we recall events, and imagining something can make us believe it happened. Source amnesia is when we forget the origin of our memories, leading to false beliefs.

Déjà vu is the sensation of familiarity without remembering why, often caused by brain processes misfiring. Children’s memories are easily influenced by suggestive questioning, making their eyewitness testimony unreliable unless questions are neutral.

Recovered memories from therapy techniques like hypnosis may create false memories, causing harm, though naturally recalled memories tend to be more accurate. False memories are persistent, vivid, and can lead to wrongful convictions or distorted personal perceptions.