long-term memory Flashcards
episodic memory
a long-term memory store - personal events
memories from this store have to be retrieved consciously with effort
time-stamped
semantic memory
long-term memory store for our knowledge of the world
memories usually need to be recalled deliberately
not time-stamped
less vulnerable to distortion and forgetting than episodic
procedural memory
long-term memory store for our knowledge of how to do things
we recall these memories without making a conscious or deliberate effort
who proposed types of ltm stores
tulving
clinical evidence
P - strength is evidence from case study - HM and Clive Wearing
E - episodic memory in both men impaired due to brain damage but semantic unaffected and procedural memories intact
E - could walk, talk, clive could play piano and read music, HM couldnt recall stroking dog but knew what a dog is
L - evidence supports Tulving’s view that there are different memory stores in LTM - one store can be damaged but other stores are unaffected
P - studying brain injures - clinical studies are not perfect
E - major limitation - lack control of variables - brain injures experienced by participants were usually unexpected
E - research has no wear of controlling what happened to participant before or during injury - no knowledge of memory before
L - lack of control limits where clinical studies can tell us about different types of LTM
conflicting neuroimaging evidence
P - limitation is there is conflicting research findings linking types of LTM to areas of brain
E - Buckner and Peterson - reviewed evidence of location of semantic and episodic memory - concluded semantic is left side of prefrontal cortex and episodic on right
E - however - other research links the left prefrontal cortex with encoding of episodic memory and right with episodic retrieval
L - challenges any neurophysiological evidence to support types of memory as there is poor agreement on where each type might be located
real-world application
P - strength is understanding types of LTM allows psychologists to help people with memory problems
E - eg aging - research shown memory loss of episodic memory
E - Belleville et al - devised intervention to improve episodic memory - trained participants performed better on a test of episodic memory compared to control
L - shows that distinguishing between types of LTM enables specific treatments to be developed