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Chapter 8

PSY BEH 11B Chapter Notes - Chapter 8: Rhinal Cortex


Department
Psychology and Social Behavior
Course Code
PSY BEH 11B
Professor
Kier Groulx
Chapter
8

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PsyBeh 11B Week 3
Reading 5 (Gleitman Ch. 8, 317-327)
Memory Gaps, Memory Errors
Forgetting
o Retention interval time elapsed between learning and retrieval
o Two ways to think about retention interval
Emphasis of the passage of time itself based on idea that memories
decay as time passes
Other emphasis on new learning new info getting added to long-term
memory somehow disrupts old info already in storage
Both are correct
o Experiments
No interference observed for dissimilar material
If new learning is consistent with the old, new learning helps old memory
Memory Intrusions
o Why does new learning disrupt old?
Some cases, new info just sits side-by-side with old memories, easily
mixes up the two
Another case, new info literally replaces old info
o In either case, this new material leads to intrusion errors
Mistakes about the past in which info is mixed into your recall
o The Misinformation effect
Intrusion involves info about an event that you learned only after the
event was over
Misinformation is often incorporated into participants memory
Errors produced by misinformation effect can actually be quite large
o Intrusions from Schematic knowledge
Intrusions can also come from another source
Trying to understand things by creating connections within their own
memories
Memory is strongly affected by the research participants’ broad
knowledge of the world and by the conceptual framework they bring to the
situation
These frameworks are described as schemas mental
representations that summarize what we know about a certain
type of event of situation
o Intrusions from Semantic Associations
DRM paradigm participants hear a list of words, then immediately after,
are asked to recall as many words as possible
Ex: asked to remember bed, rest, awake, tired, dream, wake, snooze,
blanket, doze, slumber, snore, nap, peace, yawn, drowsy
All these words are associated with the word sleep
Sleep isn’t included at all though
Result was that they were more likely to remember that they heard
sleep
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