EXAM 2: Reconstructive Nature of Memory Flashcards
Misinformation effect
Event -> Misleading information -> Modified knowledge
What are the two types of misinformation
Supplemental and Contradictory
Supplemental information
Extra information that is plausible given the broader contextual setting (book/office example)
Contradictory Information
Information that directly contradicts what was originally witnessed
Loftus and Palmer, 1974
Views a series of slides depicting a car accident, asked “how fast were the cars going when they __ each other?”. The lower estimated speed answers would be “contacted” or “hit”, however the higher estimated speed answers would be “smashed”. Did the question affect memory for the accident? 14% of the hit group said they saw broken glass, and 34% of the smashed group said they saw broken glass.
In the car crash example, what type of misinformation is that?
Supplemental! Broken glass is extra yet plausible info, even more plausible for the smashed group
Stop Sign Example - What was it?
Shown a photo of a car crash where a stop sign was visible. They had to answer questions, “see stop sign, asked about stop sign”, “see stop sign, asked about yield sign”.
Results: 75% accurate for consistent; 40% accurate for inconsistent. This example demonstrates contradictory misinformation because you can “erase” previous memory
Eyewitness testimony
Most important factor in influencing juries. Research demonstrates that eyewitness memory is far more malleable than once thought
What are the two types of lineups?
Simultaneous + Sequential
Simultaneous Lineup
See all photos at the same time when making decision
Relative decision: people choose the person who most resembles their memory of the culprit
Sequential
View photo one-at-a-time
Absolute decision: assess each person in isolation
Impact of positive feedback in a lineup
Increases eyewitness confidence, alters memory for the original events (rate original view as being better, rate that they could make out more facial details)
What are the two sevens sins of memory?
Omission and Commission
Omission
Failure to bring something to mind
Commission
Presence of unwanted or inaccurate memories
What are the 3 sections of sins of omission?
Transience, Absentmindedness, Blocking
What are the 4 sins of commission
Persistence, Misattribution, Suggestibility, Bias
Omission: What is transience?
Loss of info from memory with the passage of time (forget the details) (lots of time = more lost)
Omission: What is absentmindedness?
Don’t attend to information, no entry to retrieve later (lack of attention leads to memory distortions) (EX: forgetting where you put your keys)
Omission: What is blocking?
Temporary failure to retrieve, increases with age (tip of the tongue demo)
Commission: What is persistence?
The continued automatic retrieval of memories (often unwanted, PTSD)
Commission: What is Misattribution?
Memory ascribed to the wrong source (EX: You thnk you learn something in class, but you actually heard it in a tiktok)
Commission: What is suggestibility
False recollection (through leading question or others/ suggestion) (results: retrieval sketches matched the label) (conclusion: label influenced encoding of the memory = influences the reconstruction of memory at retrieval)
Commission: What is Bias?
Our own influence on what we remember (influenced by beliefs/expectations/desires/emotions) (EX: You get into a fight with your friend at the end
of a trip. Because you are upset with your friend, in that
moment, you remember the entire vacation as being less
enjoyable than it actually was)
Weapon focus effect
The presence of a weapon leads to accurate memory for related info and impaired memory for peripheral details (possible reasons: threatening nature of the gun, novelty of the gun given the current context)
Photo bias
Increase in probability that a person will be recognized as the culprit due to previous exposure in a photo
False memory theories: Fuzzy Trace Theory
Two memory components: Gist (overall main idea) and Verbatim (exact details)
False memory = Gist > Verbatim
(EX: DRM Paradigm: Verbatim is every word in the list, Gist is the overall idea which was sleep)
False memory theories: Source monitoring framework
Reality monitoring - Attributing a memory either as a perceived external event of an internally generated event
Source monitoring: Determine the source of the event (source confusion: the inability to distinguish between the source of event memories)