cog approach: schema theory & reconstructive memory Flashcards
schema definition
schemas are a framework we use to interpret the world and in turn use to understand new information
schema theory is the theory of?
how we process information, relate it to our pre-existing knowledge and use it. it is used to describe how our cultural and personal contexts affect our processing of information - namely in memory acquisition.
S.T explains cognitive processing by?
-> playing a role in affecting judgment (eg. activation of certain schemas which lead to error-prone judgments)
-> affecting perception, memory and recall. (eg. more likely to remember info aligning w pre-existing schemas and may overlook or forget info that does not fit)
studies investigating how schemas explain cognitive processing?
Brewer and Treyens (1981)
Loftus and Palmer (1974)
B&T (1981) aim -
investigate the role of schema in the encoding and retrieval of episodic memory
B&T (1981) sample -
86 uni psych students
B&T (1981) participant set up -
each P asked to wait outside the professors office while the researcher “checked if the previous P had completed the experiment”, asked to take a seat (every chair except one had objects on them - this ensured uniform vantage point)
B&T (1981) room set up -
room was made to look like an office;
-> with typical office items like typewriter, paper, table w tools and electronics, coffeepot. shelves along one wall & other walls w posters & calendar
-> not typical office items like skull and toytop
-> ommited items like books
B&T conditions -
aft 35 secs, P were called into another room & asked what they remembered.
-> 30 P did free recall (write desc of what they remembered & state location, size, colour, shape. also do verbal recognition test)
-> 27 P did verbal recognition ONLY - booklet of 131 objects & had to rate from 1-6 based on how sure they were that the object was in the room (out of which only 61 were in the room and 70 werent)
-> 29 P did drawing recall ONLY - given an outline of the room
& asked to draw the objects they remember
B&T (1981) questionnaire
asked them whether they expected to recall objects in the room. 93% replied no.
B&T (2981) results -
P who wrote a para/drew were more likely to remember schema congruent items while schema incongruent items were not often recalled. also tended to change nature of objects to fit their schemas (eg. pad of yellow paper was remembered as being on the desk instead of on the chair)
P in verbal recognition were more likely to identify incongruent items (eg. did not recall skull in free recall but rated it a 6 on the verbal recognition test.) however, they also had a high chance of identifying schema congruent objects which were not in the room.
link to L&P
schemas can also lead to false/distorted memories. schema consistent information will be remembered well, while schema inconsistent information may be forgotten or distorted to fit a schema (based on past expectations or beliefs)
L&P (1974) aim -
investigate whether the use of leading questions would affect estimation of speed
L&P (1974) sample -
45 undergraduate students from the Uni of Washington, USA
were divided into 5 grps of 9 to watch 7 short (5-30 sec) videos involving an accident between a blue and red car
L&P (1974) questionnaire -
filled in a questionnaire based on the videos; including several filler q’s and one critical q.
filler q’s - one open ended q ‘give an account of the accident you just saw’ & several specific q’s
critical question - “how far were the cars going when they _ each other?” (diff verb filled the blank depending on the grp -smashed/collided/bumped/hit/contacted)
next, they were asked to estimate the speed the cars were going