LS2 - Models Of Memory Flashcards
Multi Store Model (MSM)
Atkinson & Shiffrin developed this and suggested there are 3 stores: Sensory Register, STM and LTM.
Process Of MSM
Information is detected by sensory organs & enters sensory register.
If attention is paid it goes to STM
If rehearsed it goes to LTM, if not it displaces or decays.
Retrieval then withdraws memories from the LTM which has unlimited capacity.
Sensory Register Coding
Can take in all information from all senses, but therefore has short duration ~250 milliseconds.
Maintenance Rehearsal
Mentally rehearsing somethign, this is how it goes from STM to LTM.
MSM Strengths
Can Explain Primacy And Recency Effect
Supports LTM & STM As Separate Stores
Brain Scanning Techniques
MSM Weaknesses
Doesn’t Explain Flashbulb Memories
STM & LTM Aren’t Single Stores
Lacks Ecological Validity
Can Explain Primacy & Recency Effects (+)
Murdoch’s study found when participants were given a lost of 10-40 words, they remembered. the first and last few wrods. First few wrods went into LTM due to rehearsal and last few went into STM.
Supports OF LTM & STM As Separate Stores (+)
H.M had brain daamge after his hippocampus was removed from both sides of his brain to reduce severe epilepsy. After his personality and STM was calm however he couldn;t form new LTMs, you can use on memory but not the other.
Brain-Scanning Techniques (+)
Beardsley fiund different parts of the brain are used during STM and LTM tasks, suggesting there are different stores ofr both.
Doesn’t Explain Flashbulb Memories (-)
Doesn’t account for relevant memories being easier to remember, if we don’t fully understand something it won’t stay for long. The MSM focusus on maintenance rehearsal. however doesn’t consdier elaborative reherasal where infromation is linked to existing memoreis and processed at a deeper level.
Lacks Ecological Validity (-)
Supporting studies included unrelasitical tasks which didn’t test memories in ways relatable to everyday life.
