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This Article Full Text Full Text (PDF) All Versions of this Article: 93/4/2002    most recent 00800.2004v1 Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in Web of Science Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Web of Science (6) Citing Articles via Google Scholar Google Scholar Articles by Shelhamer, M. Search for Related Content PubMed PubMed Citation Articles by Shelhamer, M.

Sequences of Predictive Saccades Are Correlated Over a Span of 2 s and Produce a Fractal Time Series

Department of Otolaryngology—Head and Neck Surgery, Department of Biomedical Engineering, The Johns Hopkins University, School of Medicine, Baltimore, Maryland

Submitted 5 August 2004; accepted in final form 11 November 2004

We previously demonstrated that there is an abrupt (rather than smooth) transition between reactive and predictive modes of eye-movement tracking of target lights (a phase transition). We also found evidence that the sequence of eye movements in the reactive mode was independent, whereas those in the predictive mode were correlated and possibly formed a random fractal sequence. Here we confirm the finding of fractal structure by quantifying the rate of decay of nonlinear forecasting when applied to these data. We also estimate the window over which consecutive trials are correlated and show that the duration of this window is fixed in time rather than number of trials. These results have implications for the neural mechanisms that drive predictive movements.

This article has been cited by other articles:

				W. M. Joiner and M. Shelhamer Responses to Noisy Periodic Stimuli Reveal Properties of a Neural Predictor J Neurophysiol, October 1, 2006; 96(4): 2121 - 2126. [Abstract] [Full Text] [PDF]