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1/f noise in human cognition
D L Gilden1, T Thornton, M W Mallon
1Department of Psychology, University of Texas at Austin 78712.
Science (New York, N.Y.)
|March 24, 1995
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.