Trends in Cognitive Sciences 3 (8):301-310 (1999)

Bringing about desirable collisions (making interceptions) and avoiding unwanted collisions are critically important sensorimotor skills, which appear to require us to estimate the time remaining before collision occurs (time-to-collision). Until recently the theoretical approach to understanding time-to-collision estimation has been dominated by the tau-hypothesis, which has its origins in J.J. Gibson’s ecological approach to perception. The hypothesis proposes that a quantity (tau), present in the visual stimulus, provides the necessary time-to-collision information. Empirical results and formal analyses have now accumulated to demonstrate conclusively that the tau-hypothesis is false. This article describes an alternative approach that is based on recent data showing that the information used in judging time-to-collision is task- and situation-dependent, is of many different origins (of which tau is just one) and is influenced by the information-processing constraints of the nervous system
Keywords 380101 Sensory Processes, Perception and Performance  C1  Tau   Time-to-collision   Perception   Visually timed action  780108 Behavioural and cognitive sciences
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DOI 10.1016/s1364-6613(99)01352-2
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References found in this work BETA

Minimodularity and the Perception of Layout.Nicola Bruno & James E. Cutting - 1988 - Journal of Experimental Psychology: General 117 (2):161-170.
Ambiguity in Perception and Experimentation.Dominic W. Massaro - 1988 - Journal of Experimental Psychology: General 117 (4):417-421.

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An Embodied Cognitive Science?Andy Clark - 1999 - Trends in Cognitive Sciences 3 (9):345-351.
Radical Predictive Processing.Andy Clark - 2015 - Southern Journal of Philosophy 53 (S1):3-27.
The Dynamics of Perception and Action.William H. Warren - 2006 - Psychological Review 113 (2):358-389.

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