Multi-Store Model of Memory Atkinson & Shiffrin, 1968

Get Started. It's Free
or sign up with your email address
Rocket clouds
Multi-Store Model of Memory Atkinson & Shiffrin, 1968 by Mind Map: Multi-Store Model of Memory Atkinson & Shiffrin, 1968

1. Structure of the model

1.1. Sensory Memory (where information is held)

1.1.1. Duration limited

1.1.2. Large capacity

1.1.3. From 5 senses

1.1.4. 5 stores

1.1.4.1. Encoding is modality specific

1.1.5. Must attend to information for it to pass into STM

1.2. STM

1.2.1. 30 sec duration

1.2.2. 5-9 capacity

1.2.3. Acoustic encoding

1.2.4. Information maintain through rehearsal

1.2.4.1. Then transfers to LTM

1.3. LTM

1.3.1. Infinite duration

1.3.2. Infinite capacity

1.3.3. Mainly semantic encoding

2. Research

2.1. Clive Wearing

2.1.1. Retrograde amnesia and anterograde amnesia

2.1.1.1. Unable to form new memories

2.1.1.2. Recognises wife/Can play piano

2.1.1.3. Don't remember the past

2.2. Bahrick et al (1957)

2.2.1. Investigates the duration of LTM using naturalistic materials

2.2.2. 392 US PPs who had left high school 1-48 years previously tested for recall of classmates

2.2.3. Recall was remarkably high - 80% accuracy for name recognition at 48yrs - 30% accuracy for free recall at 30yrs

2.2.4. LTM can store some types of info for very long time

2.2.5. Ecological validity was high

2.2.5.1. Naturally occurring form of info

2.2.6. Internal validity was low

2.2.6.1. Classmates may have high emotional significance

2.2.6.2. Great opportunity for rehearsal

2.3. Miller (1956)

2.3.1. People cope well with counting 7 flashing dots but not much more – same for digits, numbers and even words

2.3.2. Capacity of STM is limited

2.4. Cowan (2001)

2.4.1. Magic number = 4

2.4.2. Supported by other research looking at visual stimul

2.5. Peterson&Peterson

2.5.1. Investigates the duration of short-term memory

2.5.2. 24 participants had to recall trigrams (meaningless three-consonant syllables, e.g. TGH, CLS). The trigrams were presented one at a time and had to be recalled after intervals of 3, 6, 9, 12, 15 or 18 seconds. To prevent rehearsal participants were asked to count backwards in threes or fours

2.5.3. 3 seconds - 80% 6 seconds - 50%. 18 seconds - less than 10%

2.5.4. Short-term memory has a limited duration (of about 18 seconds) when rehearsal is prevented

2.5.5. Low external validity

2.5.5.1. Artificial stimuli