explanation for forgetting: retrieval failure Flashcards
how do lack of cues cause retrieval failure?
- when info is first placed in memory, associated cues are stored at the same time
- if the cues are available when trying to recall, memories that are there may not be able to be accessed
what is the encoding specificity principal (ESP)
- tulving (1983) suggested cues help retrieval if the same ones are present at encoding (when material is learnt) and at retrieval
- the closer the retrieval cue to the original one,the better the cue works
cues having meaning linked to memory
- some cues are linked to the material being remembered in a meaningful way
(like the cue STM can trigger lots of info about STM)
cues having no meaningful link
other cues are encoded at the time of learning but not in a meaningful way:
- context dependant forgetting is when retrieval is dependant on external environmental cues (like weather or places)
- state dependant forgetting is where retrieval is dependant on an internal cue, state of mind (feeling upset or being drunk)
Godden and Baddeley (75)
context dependant forgetting:
what is the conclusion of the study?
- this demonstrates context-dependent forgetting because the information was not accessible when context at recall and learning didn’t match
Godden and Baddeley (75)
context dependant forgetting:
what is the aim of the study?
- cues were the context where learning and recall took place - on land or underwater
Godden and Baddeley (75)
context dependant forgetting:
what is the procedure of the study?
divers learned word lists and then asked to recall them in different places:
- learn on land - recall on water
- learn on land - recall on land
- learn in water - recall on land
- learn in water - recall in water
Godden and Baddeley (75)
context dependant forgetting:
what are the findings of the study?
- when the environmental contexts of learning and recall didnt match recall was 40% lower
- when the external cues at learning and recall were different, this led to retrieval failure due to lack of cues
+ supporting evidence
Godden and baddeley + Carter and Cassidy support retrieval failure
- Eysenck (10) says retrieval failure is main reason for forgetting LTM
- Increases validity shows it occurs in real life situations and lab conditions
- Questioning context effects
Baddeley (97) different contexts have to be very different for effect to be seen
- hard to find environment as different as land and water - learning in one room and recalling in another won’t have much effect
- weak real life application as normal contextual cues don’t have effect
Recall vs Recognition
- Godden and Badeley (80) replicate underwater experiment but with recognition test instead of recall
- there was no context dependant effect so performance was same in all conditions
- shows cues only affect memory when tested in a certain way
Carter and Cassaday (98) state dependant forgetting:
What was the procedure?
- antihistamine drugs caused drowsiness
- created internal state different from normal
- learn list of prose on or off the drug, then recalled prose on or off the drug
Carter and Cassaday (98) state dependant forgetting:
What was the findings?
- mismatch of internal state with learning and recall caused worse recall
(when cues are absent there’s more forgetting)