MSM of memory Flashcards
sensory register for MSM
receives stimulus from the environment- ionic and echoic coding. duration is brief and capacity is large
STM for MSM
limited capacity and duration. coded acoustically. enough maintenance rehearsal= goes to LTM
LTM for MSM
permanent memory store. unlimited capacity and duration- coded semantically. for recall, info must be transferred back to STM via retrieval
strength- primacy effect
research shows ppl recall first few items better than middle items in a list as they have been rehearsed better= LTM. this supports MSM
strength- recency effect
ppl remember last few items better than middle items in a list. STM= 7 items= displacement. last few words are still in STM to be recalled
strength- Milner- HM study
HM had epilepsy= hippocampus removed. this reduced seizures but caused memory loss- could form short term but not long term memories. this supports separate memory stores
weakness- lacks ecological validity
in the model, info goes from STM to LTM via rehearsal, but in reality, ppl dont spend their time rehearsing but info is still transferred= rehearsal not always needed
weakness- oversimplified model
assumes there is only 1 long term store and 1 short term store. this has been disproved by brain damaged patients= diff short and long term stores