Long term memory system

Long term memory system - Memory 1. Basic terms a....

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Memory 1. Basic terms a. Encoding: the act of converting sensations (perceptual info) into a neural code that can be stored i. Can be effortful: studying ii. Can be automatic b. Storage: changes in nervous system that allows that information to be stored for a period of time c. Retrieval d. Recall: the ability to get info out of memory e. Recognition: ability to select previously learned info from an array of options f. Forgetting: can happen due to a problem in an earlier step 2. Atkinson and Shiffrin’s transfer and storage model a. Three stages i. Sensory memory: designed to hold an exact copy of the sensation 1. Iconic memory: visual memory 2. Sperling: would show participants a matrix of letters: see what they would remember 3. Said that iconic memory lasts ¼ of a second 4. Newer research suggests that it actually lasts up to 2 secs 5. Echoic memory: auditory: lasts up to two secs ii. Short-term memory: only temporary storage 1. Info fades away in thirty secs. 2. Can keep in short term by rehearsal 3. Humans prefer to transfer information into sounds 4. Capacity is limited: “magic number” is 7 plus or minus 2 bits of information 5. Displacement: either the new info is not remembered or it is remembered while something else is forgotten
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6. Interval interface: start thinking about other things 7. External interface: outside factor invades consciousness
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This note was uploaded on 04/17/2008 for the course PSYCH 202 taught by Professor Nezlek during the Fall '08 term at William & Mary.

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Long term memory system - Memory 1. Basic terms a....

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