1/f Noise in Human Cognition

Author(s): Thornton, T, Mallon, M W

Journal/Book: Science. 1995; 267: 1837-1839.

Abstract: When a person attempts to produce from memory a given spatial or temporal interval, there is inevitably some error associated with the estimate. The time course of this error was measured in a series of experiments where subjects repeatedly attempted to replicate given target intervals. Sequences of the errors in both spatial and temporal replications were found to fluctuate as 1/f noises. 1/f noise is encountered in a wide variety of physical systems and is theorized to be a characteristic signature of complexity.

Note: Department of Psychology, University of Texas at Austin, Austin, TX 78712, USA., *To whom correspondence should be addressed. Reports.

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