2.1 Multi Store Model of Memory

whats the flowchart of the MSM

stimuli > sensory register > attention > STM > repetition > LTM > retrieval > STM

3 components of the MSM

• sensory register

• STM

• LTM

coding, capacity and duration of each component of MSM

• SR: co- iconic/echoic, ca- large, du- <1 second

• STM: co- acoustic, ca- 7±2 chunks, du- 18-30seconds

• LTM: co- semantic, ca-unlimited, du- lifetime

what was Baddeley’s experiment on STM (procedure, findings and suggestions)

• PP’s given 2 lists to recall: acoustically similar and acoustically dissimilar (recall was immediate)

• PP’s had trouble remembering acoustically similar words

• suggests STM relies heavily on sound-based encoding

what was Baddeley’s experiment on LTM (procedure, findings and suggestions)

• PP’s given 2 lists to recall: semantically similar and semantically dissimilar (recall took 20 mins)

• PP’s had trouble remembering semantically similar words

• suggests LTM relies heavily on meaning-based encoding

what was Miller’s experiment and findings

• digit span task

• PP’s asked to recall sequences of numbers of increasing length

• PP’s could remember around 7±2 chunks

what was Peterson & Peterson’s experiment and findings

• PP’s given trigrams to remember, and then asked to count backwards to prevent rehearsal

• recall dropped significantly after 18-30 seconds

what was Bahrick et al’s experiment and findings

• photo recognition

• PP’s could remember the faces of people form highschool 50+ years later

• suggests LTM can last a lifetime

give one supporting evidence of the MSM, include procedure and findings

• patient HM

• after surgery removing the hippocampus: new LTM could be formed and the STM remained intact

• supports that the LTM and STM are separate stores