# DURATION OF STM AND LTM

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WHAT IS THE DURATION OF STM?
IT HAS A LKIMITED CAPACITY AND IS MEASURED IN SECONDS AND MINUTES.
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HOW CAN INFO IN STM BE MAINTAINED?
THROUGH REHERSAL (MAINLY VERBAL)
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NAME A KEY STUDY ON THE DURATION OF STM.
LLOYD AND MARGARET PETERSON (1967) ENLISTED HELP OF 24 STUDENTS. EXPERIMENTER SAID A CONSTANT SYLLABLE FOLLOWED BY A THREE DIGIT NUMBER, PARTICIPANT WAS THEN ASKED TO COUNT BACKWARD FROM THIS NUMBER IN 3S OR 4S.
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RESULTS FROM STUDY ON DURATION OF STM?
AFTER RECALLING THE CONSTANT SYLLABLE. THEY FOUND PARTICIPANTS REMEMBERED 90% WHEN THERE WAS A 3 SECOND INTERVAL AND ONLY 2% WHEN THERE WAS AN 19 SECOND INTERVAL.
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WHAT IS THE DURATION OF LTM?
HAS A POTENTIAL UNLIMITED DURATION. MEASURED IN HOURS, DAYS AND YEARS.
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STUDY ON DURATION OF LTM?
BAHRICK ET AL (1975) ASKED PEOPLE OF VARIOUS AGES TO PUT NAMES TO FACES FROM THEIR HIGH SCHOOL YEARBOOK. 48 YEARS ON, PEOPLE WERE ABOUT 70% ACCURATE.
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WHAT IS DURATION?
A MEASURE OF HOW LONG A MEMORY LASTS BEFORE IT IS NO LONGER AVAILABLE. STM HAS A VERY LIMITED DURATION, WHEREAS LTM HAS POTENTIALLY AN UNLIMITED DURATION.
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## Other cards in this set

### Card 2

#### Front

HOW CAN INFO IN STM BE MAINTAINED?

#### Back

THROUGH REHERSAL (MAINLY VERBAL)

### Card 3

#### Front

NAME A KEY STUDY ON THE DURATION OF STM.

### Card 4

#### Front

RESULTS FROM STUDY ON DURATION OF STM?

### Card 5

#### Front

WHAT IS THE DURATION OF LTM?