memory 1.4 Flashcards
Explanations for forgetting: proactive and retroactive interference and retrieval failure due to absence of cues.
interference
interference occurs when the recall of one memory blocks the recall of another, causing forgetting or distorted perceptions of these memories
proactive interference
previously learnt info interferes with the new info your are trying to store
old interfering with new
e.g. difficulty learning names of people in your maths class this year because you keep remembering names of people in your psychology class last year
retroactive interference
a new memory interferes with older memories
new interfering with old
e.g. difficulty remembering names of people who were in your psychology class this year because you keep remembering names of people in your maths class this year
who researched into retroactive interference?
Underwood and Postman
what was Underwood and Postman’s aim?
to find out if new learning interferes with previous learning
what was Underwood and Postman’s procedure?
participants were divided into two groups
group A were asked to learn a list of word pairs e.g. dog-cat and then asked to learn another list where the second word is different e.g. dog-tree
group B were asked to learn the first list of word pairs only
both groups were then asked to recall the first list of word pairs
what were Underwood and Postman’s results?
group B’s recall of the first list was more accurate than group A’s recall of the list
what was Underwood and Postman’s conclusion?
this suggests that learning items in the second list interfered with participants ability to recall the list
this is an example of retroactive interference
explain how lab experiments support the concept of interference as an explanation for forgetting
interference has been consistently demonstrated in several studies, but particularly in lab experiments
this increases the validity of the theory due to the use of highly controlled conditions in lab experiments, standardised instructions alongside the removal of biasing effects of extraneous and confounding variables
explain how Baddeley and Hitch’s experiment supports the concept of interference as an explanation for forgetting
Baddeley and Hitch found that in a group of rugby players who had to recall their last game and the number of games they’d played that season (which would be different from each player),the number of games they’d played since was more important than the total time they’d been playing for
this can be explained in terms of interference, where the more games each player had played, the more likely the memories of these newer games would interfere or block the recall of older games
i.e. retroactive interference
explain how the artificial stimuli used in interference research is a weakness of the concept of interference being used as an explanation for forgetting
the artificial stimuli used in these tasks, such as learning lists of random words with no personal
meaning to the participants, means that the findings of interference studies are likely to have low mundane realism
this is because in real life, we are likely to learn lists of meaningful information, such as revision topics for psychology, which we draw links upon and also which have personal meaning to
us
these factors may also influence the extent of forgetting, rather than influence.
explain how the studies being conducted in a short space of time is a weakness of interference being used as an explanation for forgetting
a second methodological criticism of interference studies, further suggesting that they lack
mundane realism and reliability, is that they are often conducted in very short spaces of time with
participants recalling their words 1 or 2 hours after they have learnt them
this does not reflect the
normal passage of time in everyday life, where we often find that several days pass until we need to
recall such information e.g. in the case of an exam.
therefore, this suggests that interference is
unlikely to be a valid explanation for forgetting from the ltm
the two types of cues
cues which are linked meaningfully to the information to be remembered
cues which are not linked meaningfully to the information to be remembered
what happens when we learn information?
we also encode the context (external cues in which we learn the information)
two types of forgetting
context dependent forgetting
state dependent forgetting