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Annu Rev Neurosci. 1999;22:241-59.

Neural selection and control of visually guided eye movements.

Author information

1
Vanderbilt Vision Research Center, Department of Psychology, Vanderbilt University, Nashville, Tennessee 37240, USA. jeffrey.d.schall@vanderbilt.edu

Abstract

We review neural correlates of perceptual and motor decisions, examining whether the time they occupy explains the duration and variability of behavioral reaction times. The location of a salient target is identified through a spatiotemporal evolution of visually evoked activation throughout the visual system. Selection of the target leads to stochastic growth of movement-related activity toward a fixed threshold to generate the gaze shift. For a given image, the neural concomitants of perceptual processing occupy a relatively constant interval so that stochastic variability in response generation introduces additional variability in reaction times.

PMID:
10202539
DOI:
10.1146/annurev.neuro.22.1.241
[Indexed for MEDLINE]

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