Lecture 1 - sensory and working memory Flashcards
Behaviorism 1920s
Skinner + Pigeon Studies
If it cannot be observed it’s not scientific
input - black box - output
Experimental Psychology 1950s
input - process/storage - output
black box is now mind and processing
what did Atkinson and Shiffrin do?
multi store model of memory
Describe the MSM
Sensory memory -> STM -> LTM
what is the Sensory Memory
environmental inputs either forgotten or attention is payed to them
lots of information stored but with rapid delay
large capacity/short duration
what is the whole report procedure
9 letter flashed at once but how much is processed
could only recall 1 - 3
what did Sterling 1960 do?
partial report procedure
letters flash then the cue for which row to recall
whole grid must be processed in order to recall one row
recall row 75% of the time
What is the STM
attention paid to things in the sensory memory
maintenance rehearsal
forgotten through delay or displacement
30 duration
what did Miller 1956 find?
STM holds about 7 thiings
What is the memory span test
chunks
Conceptual meaning – creates a chunk
holds 7 individual numbers/letters or 7 whole words
What is the memory span test
chunks
Conceptual meaning – creates a chunk
holds 7 individual numbers/letters or 7 whole words
Cultural impact on STM
how long it takes to pronounce the chunks means less can be rehearsed in the same amount of time
different capacities
Limitations of the STM
Peterson and Peterson - include a delay between stimulus and recall accuracy declines
30 second capacity
The effects of interference on STM
Proactive Interference - no room for new memories
Retroactive Interference - Pushes out old memories
study - fruit words in conditions 1,2,3 then fruit or new in 4. better when 4 was different
Baddeley & Hitch (1974) - Working memory
Phonological Loop - stores auditory information.
Visuospatial Sketchpad - stores visual and spatial information.
Central Executive - integrates information from other components (in episodic buffer)