High-Speed Scanning in Human Memory

Science  05 Aug 1966:
Vol. 153, Issue 3736, pp. 652-654
DOI: 10.1126/science.153.3736.652


When subjects judge whether a test symbol is contained in a short memorized sequence of symbols, their mean reaction-time increases linearly with the length of the sequence. The linearity and slope of the function imply the existence of an internal serial-comparison process whose average rate is between 25 and 30 symbols per second.

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