MULTI-STORE MODEL OF MEMORY STRENGTHS AO2

MULTI-STORE MODEL OF MEMORY STRENGTHS AO2

1. Support: Look at Peterson & Peterson & Bharicks experiments - support the idea of different stores for STM & LTM

2. Glanzer & Cunitz (Primacy & recency effect)

   • A: Find if there are different stores for STM & LTM
   • P: presented with a list of words (one at a time)
     • Condition 1: Recall words in serial order immediately after presentation
     • Condition 2: Given a distractor task & asked to count back in 3's for 30secs - then asked to recall words
   • F: Condition 1; found the expected serial curve
     • Condition 2; distractor task, disrupted the regency effect & the last words were not accurately recalled
   • C: Last words in the list had been displaced by the distractor task from the fragile STM, but the earlier words were remembered cause they had been rehearsed into LTM

3. Important contribution to understanding memory by stimulating research into different components

   • Supported by lab experiments which show different stores (sensory, STM, LTM) E.G. Glanzer & Cunitz
   • Most influential model built about information processing

4. Case studies who have suffered from brain damage

   • E.G. H.M. hippocampus was taken out in surgery - lost his ability to make new long term memories but retained memories before surgery (same as Clive Wearing)
     • Could never remember the psychologists & reread the same magazine BUT it did not affect his STM as he still had a digit span of 6words
       • Suggests different structures in STM & LTM & that the hippocampus plays an important role in making new memories

5. Evidence from PET and mRI scans supports the existence of two separate stores

   • Squire found that the hippocampus is active in LTM tasks & the pre-frontal cortex is active for STM
     • Physiological basis for the different stores