Explanations for forgetting Flashcards
interference definition
- one memory disturbs the ability to recall another
- may result in forgetting or distortion of memory
- more likely if the memories are similar
proactive interference
previously learnt info interferes with the new information
retroactive interference
a new memory interferes with an old memory
retrieval failure
- forgetting due to lack of cues
- the issue related to the memory being available but not accessible
encoding specificity princple- Tulving and Thompson ‘73
memory is most effective when info that was present at the time of encoding is also present at the time of retrieval
context dependent failure
when environmental cues are missing
state dependent failure
when an individual’s emotional state is different when trying to recall information
Carter and Cassidy 1998
- gave ppts anti histamine to make them drowsy
- either learn and recall both on or off drugs or learn on, recall off or visa versa
- recall worse on conditions with mismatched states
Abernathy 1940
- test effects on context dependent failure
- tested student on info they learnt either in the same or different room with either the same or different instructor
- group w same room same instructor scored the best
forgetting: interference limitations
- uses artificial stimuli e.g. miller and Pilzecker nonsense syllables
- better explanations for forgetting e.g. retrieval failure when info isn’t similar
- individual differences e.g. Kane and Engle- diff wm spans affect interference levels
forgetting: interference strengths
- real life research e.g. Danaher et al -advertising
retrieval failure strengths
- research support ( Abernathy: students 4 conditions)
- real world applications e.g Abernathy: revising in room taking test
retrieval failure limitations
- retrieval cues don’t always work e.g learning complex associations
- lack of cause and effect e.g. nairne correlation between cues but they don’t cause retrieval
Underwood 1957
- analysed findings from studies
- concluded when ppts have to learn a series of words around 10 lists they remember around 20% but if they’re learning one list they remember around 70%
Muller and Pilizecker 1900
gave ppts a list of nonsense syllables to learn for 6 minutes then asked them to recall after a retention interval
- performance decreased if ppts were given a task during the retention interval