(one larger segment of information). An example of this is a PIN number being ‘9654’ in one chunk, yet ‘9 6 5 4’ is four separate ones. KEY STUDY: Peterson & Peterson (1959)- Study of Duration of STM The aim was to test how long STM lasts when rehearsal is prevented. Procedure: Participants were briefly shown a consonant Trigram (three letters e.g.. CPW). Participants counted backwards in threes a a specified number to stop them rehearsing the letters in their heads. After intervals of 3,6,9…
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