Multi-Store Model

Multi-Store Model

1. Short Term Memory

   • Capacity: 7+/-2 Pieces of information
   • Duration: 18-30 seconds
   • Encoding: Mainly Acoustic

2. Long Term Memory

   • Capacity: Unlimited
   • Duration: Up to a lifetime
   • Encoding: Semantically

3. Evaluation

   • Strengths
     • Research Evidence
       • Proof that STM and LTM are separate stores
       • Serial Position Effect
         • Glanzer&Cunit'z primacy and recency effect
           • First words are best rehearsed and last are still in the STM
       • Brain Scans
         • PET &MRI
           • Prefrontal cortex activated when working on tasks in STM and hippocampus active when LTM is engaged.
   • Weaknesses
     • Brain damaged patients suggest that some people have STM for visual material but lose ability to remember verbal information
       • This shows STM is not a unitary store