Reports

Decay of Visual Information from a Single Letter

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Science  06 Oct 1967:
Vol. 158, Issue 3797, pp. 137-139
DOI: 10.1126/science.158.3797.137

Abstract

If the trace of a letter can be matched more rapidly with a physically identical letter (as in the pair AA) than it can be with a letter having only the same name (as in the pair Aa), then the trace must preserve the visual aspect of the letter. The visual information from a single letter decays in about 1.5 seconds if the task provides little incentive for preservation.