Research into primary/recency effect and rehearsal
Miller - found STM has capacity of 7 items of information comfortably but struggles to hold more than 9
Found that information can be grouped into chunks but loses accuracy.
Glanzer and Cunitz - Asked pps to recall list of words
Found that they remember beginning/end of list and fewer from middle
Because primary words are rehearsed and encoded into LTM, middle words are displaced
Objections - Lacks ecological validity
Brown-Peterson technique - Blocking rehearsal by doing an interference task like counting backwards in threes or learning useless three-letter trigrams
Learninguseless trigrams is artificial
In real life memory is used to recall important information and if forgotten then consequences
Won't explain how memory works in real life situations
Differences - Similarities with Working memory model
Working memory model replaces STM and provides more detailed explanation of rehearsal and retrieval from LTM
WMM suggests phonological loop is responsible for rehearsal process
Central executive directs attention from relevantinformationstored in LTM and brings into working memory for processing
One difference is WMM is a model still developing whereas the MSM is fixed