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MODELS OF MEMORY!!!.

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Presentation on theme: "MODELS OF MEMORY!!!."— Presentation transcript:

1 MODELS OF MEMORY!!!

2 MULTI-STORE MODEL ATKINSON AND SHIFFRIN
SENSORY MEMORY STIMULATED MEMORIES, LESS THAN A SECOND ATTENTION PASSES ONTO STM, OTHERWISE FORGOTTEN STM MEMORIES REMAIN SECS, LONG ENOUGH FOR USE REPETITION PASSES ONTO LTM, OTHERWISE FORGOTTON LTM MEMORIES REMAIN FOR A LIFETIME INTERFERENCE/DECAY LEAD TO FORGETTING

3 EVALUATION FIRST MODEL OF MEMORY WHICH IS CONSISE AND EASILY UNDERSTOOD BASIS OF ALL OTHER MODELS, THEREFOR WITHOUT THIS MODEL, OUR UNDERSTANDING OF MEMORY COULD BE VERY DIFFERENT DOESN’T ACCOUNT FOR FLASHBULB MEMORY, THEREFOR LACKS CREDABILITY AND RELIABILITY REDUCTIONIST IN THE FACT THAT THE LTM AND STM ARE MUCH MORE COMPLEX, AS SHOWN BY THE WORKING MEMORY MODEL MODEL STATES THAT REHERSAL LEADS TO STORAGE, HOWEVER IT DOESN’T ALWAYS LEAD TO STORAGE, THEREFORE DOESN’T TAKE ACCOUNT OF INDIVIDUAL DIFFERENCES OF MEMORY.

4 THE WORKING MEMORY MODEL
BADDELY AND HITCH CENTRAL EXECUTIVE CONTROL CENTER, CO-ORDINATES THE 2 SLAVE SYSTEMS, LIMITED STORAGE CAPACITY PULLS INFORMATION FROM THE 2 SLAVE SYSTEMS AND THE LTM TO THE STM VISUO-SPATIAL SCRATCHPAD INNER EYE, STORES VISUAL AND SPATIAL INFORMATION LIMITED STORAGE CAPACITY PHONOLOGICAL LOOP INNER EAR – PHONOLOGICAL STORE, INNER VOICE – ARTICULATORY CONTROL SYSTEM LIMITED STORAGE CAPACITY

5 EVALUATION OFFERS A MORE DETAILED ACCOUNT OF MEMORY, THEREFORE MORE RELIABLE THAN THE MULTI-STORE MODEL RESEARCH BY BADDELY AND HITCH SUPPORTS THIS PART. GIVEN DIGIT STRINGS TO REMEMBER WHILST UNDERGOING VERBAL REASONING TASKS ABLE TO RECALL ACCURATELY DIGIT STRINGS AND PREFORMS SUCCESSFULLY ON VERBAL REASONING TASKS SUGGESTING THE STM HAS SEVERAL COMPONENTS THAT WORK INDEPENDANTLY OF ONE ANOTHER HAS PRACTICAL IMPLICATIONS IN LEARNING TECHNIQUES, SO HAS ECOLOGICAL VALIDITY RELIABLITY OF THE VISUAL-SPATIAL SCRATCHPAD IS QUESTIONED AS THERE HASN’T BEEN A LOT OF RESEARCH INTO IT, SO IT LACKS IN DETERMINISM ONLY ONE CENTRAL EXECUTIVE IS MENTIONED IN THIS MODEL, THERE MAY BY MORE THAN ONE, AS MUCH OF THE BRAINS FUNTION IS STILL TO BE KNOWN, FOR THAT REASON IT IS REDUCTIONIST.

6 STM CAPACITY DURATION ENCODING BADDELY(b...c)
RECALL OF SHORT(MONOSYLLABILIC) VS LONG WORD(POLYSYLLABILLIC) READING SPEED, RECALL STRAIGHT AFTER PRESENTATION(5 WORDS) MORE SHORT VS LONG, LINK TO READING SPEED AND NO. OF WORDS RECALLED IN 2 SECS DURATION PETERSON + PETERSON (ppd consonant trigrams) LENGTH OF STM WITHOUT REHERSAL CONSONANT TRIGRAMS, COUNT BACKWARDS DECREASED RECALL AS TIME INCREASED, REHERSAL PREVENTED INFO. VANISHED RAPIDLY ENCODING CONRAD(con...consonants) ACOUSTIC VS VISUAL IN THE STM ACOUTICALLY SIMILAR/DISSIMILAR – 6 CONSONANTS, NOTED ERRORS MORE ERRORS WITH ACOUSTILCALLY SIMILAR ITEMS IN STM FORM ACOUSTIC CODE, EVEN WHEN PRESENTED VISUALLY

7 LTM CAPACITY DURATION ENCODING INFINITE BAHRICK(baaaaarick, duration)
EXISTENCE OF VLTM 392 HIGH SCHOOL GRADUATES 50YRS PHOTO + NAME GROUP, PHOTO GROUP PHOTO + NAME = 60% 47YRS COMPARED TO PHOTO = 20% 47YRS IS A VLTM, HOWEVER CUES ARE NEEDED TO INCREASE THE RECALL OF SUCH INFO. ENCODING BADDELY(encoding....badly) EFFECTS OF SYMANTIC AND ACOUTIC ENCODING IN THE STM AND LTM STM – 5 WORDS RECALL IMMMEDIATLY : LTM – 10 WORDS RECALL IN 20 MINS STM = SYMANTIC RECALL LOW, ACOUTICALLY SIMILAR RECALL LOW, BUT ACOUSTICALLY DISSIMILAR HIGH LTM = ACOUSTIC RECALL LOW, SYMANTICALLY SIMILAR RECALL LOW, BUT ACOUSTICALLY DISSIMILAR HIGH STM = ACOUSTIC ENCODING : LTM = SYMANTIC ENCODING


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