That the information we learn passes through a number of storesduring the journey from short term memory to long term memory.
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Sensory Memory. Sperling - 1960
Evidence for Sensory Memory
Sperling flashed 12 letters onto a screen for a second and on average people could remember 4/5 of these. When Sperling associated a certain sound with a certain row people could recall 3 from the appropriate row.
This suggests that the participants actually saw 9-10 of the potential 12 but image faded from sensory memory before the recall could take place.
Positive - in laboratory so highly controlled
Negative - artificial
No ethical issues
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Three Separate Sensory Stores
Atkinson and Shiffrin proposed three separate sensory stores.
Iconic store for visual input
Echoic store for auditory input
Haptic store for tactile input
(tactile -what you feel)
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Iconic Store
Conclusions
Items remain in the sensory memory for very short amounts of time (2 seconds)
The information in the sensory memory is in an unprocessed form
Information is passively registered in our sensory memory
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