Individual Differences in Memory Span

  • William G. Chase
  • Don R. Lyon
  • K. Anders Ericsson
Part of the NATO Conference Series book series (NATOCS, volume 14)


One series of experiments examined the correlation between memory span and the speed of symbol manipulation in short-term memory, and another experiment analyzed the effects of extended practice on memory span. In the first study, most of the estimates of processing speed did not correlate with memory span, and it was concluded that short-term memory capacity is not determined by the speed of symbol manipulation in short term memory. In the second study, memory span greatly increased with extended practice, but this increase was due to the acquisition of a mnemonic system. Short-term memory capacity was unaffected by practice.


Digit Span Memory Span Memory Search Symbol Manipulation Memory Search Task 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Plenum Press, New York 1981

Authors and Affiliations

  • William G. Chase
    • 1
  • Don R. Lyon
    • 2
  • K. Anders Ericsson
    • 1
  1. 1.Carnegie-Mellon UniversityPittsburghUSA
  2. 2.University of DaytonDaytonUSA

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