explanation for forgetting: retrieval failure Flashcards
cue dependent forgetting
this theory explains forgetting in the LTM
retrieval failure
the information is stored in the LTM but cannot be accessed
- forgetting according to this theory is due to a lack of cues
cues
things that serve as a reminder and may meaningfully link to material or not, such as environmental cues or mental cues
encoding specificity principle
Tulving & Thomson
- proposed that memory is most effective if information that was present at encoding is also available at the time of retrieval
- states that a cue doesn’t have to be exactly right but the closer to the original item, the more useful it will be
2 types of cue dependent forgetting
context and state
context dependent forgetting
can occur when the environment during recall is different from the environment you were in when you were learning
state dependent forgetting
occurs when your mood or physiological state during recall is different from the mood you were in when you were learning
Godden and Baddeley
- investigated the effect of environment on recall
- 18 divers were asked to learn lists of 36 unrelated words under 4 conditions
A: learn on beach - recall on beach (13.5)
B: learn on beach - recall underwater (8.6)
C: learn underwater - recall on beach (8.5)
D: learn underwater - recall underwater (11.4)
» shows how context was acted as a cue to re all
strength of context:
real-life application
- this is used as a strategy to improve recall in eye-witness memory when the witnesses are asked to describe the context in which the incident they have witnessed took place during cognitive interviews
Goodwin et. al
48 male medical students participated on day 1 in a training session and on day 2 in a testing, randomly assigned to 4 groups
» same state
G1: sober on both
G2: intoxicated on both
» different state
G3: intoxicated on 1, sober on 2
G4: sober on 1, intoxicated on 2
- intoxicated group had 100ml alcohol in their blood
- had to perform 4 tests: avoidance, verbal rote-learning, word-association and picture recognition task
- more errors made in the opposing states than the same ones, SS performed best in everything
- supports state-dependent memory
limitation of state
- limited ecological validity because the tasks performed were artificial therefore their performance might not reflect the way they would perform on tasks in everyday life
- may have changed behaviours to fit in with the aims of the study
strength of state
- real life application
(same for EWT) - describe their mood/emotional state when the incident they witnessed took place