STM - Peterson and Peterson of a constant syllable and three digit number
90% correct after 3 seconds, 20% after 9 and 2% after 18
LTM - Bahrick tested 50 year book photos
Free recall 48 years 30%, 15 years 60%
Face recognition 48 years 78%, 15 years 90%
Evaluation
- Artifical due to the use of constant syllables
- Duration of STM may be longer when auditory tones are used
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