PSYC 3330 - 5 (STM & WM) Flashcards
Short-term memory
-stores small amounts of info for a short period of time
-part of working memory
Working memory
-temporary storage and manipulation of information to allow for reasoning, learning, and comprehension
How is short-term memory assayed?
digit span
How is working memory assayed?
working memory span
Primacy effect (STM)
better memory for first list items
Recency effect (STM)
better memory for last list items
Suffix effect (STM)
extra info at the end reduces the recency effect
The Peterson Task and Trace Decay found that:
short-term memory decays over time (eg. simple trace decay)
Read up on Peterson Task
slides 6-7
Working memory complex span tests involve both:
retention and processing
Working memory is retained in limited capacity short term stores in the
posterior brain regions (eg. parietal lobes)
In working memory, the PFC:
-refreshes information in stores (rehearsal)
-manipulating info
Perception and long-term storage is in _______ regions
non-frontal
Short-term maintenance and manipulation are in the ________ regions
frontal
Lexicality
words remembered better than non-words (component of LTM needed to support WM)
Operations of he visuo-spatial sketchpad include:
-mental scanning
-mental rotation
-boundary extension
-dynamic memory
Visuo-spatial sketchpad
influence of visual/spatial factors on memory span
Mental scanning
time needed to mentally scan a spatial distance increases with size of distance
Mental rotation
time needed to recognize an object is a function of the degree of rotation needed
Boundary extension
visual information beyond the field of view is filled in suggesting more of a scene was viewed than is actually present
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