title: Neural selection and control of visually guided eye movements.
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.
authors: Vanderbilt Vision Research Center, Department of Psychology, Vanderbilt University, Nashville, Tennessee 37240, USA. jeffrey.d.schall@vanderbilt.edu
authors: J D
authors: JD
authors: Schall
authors: K G
authors: KG
authors: Thompson
mesh_terms: D000818:Animals; D005133:Eye Movements / Q000502:physiology*; D006801:Humans; D009424:Nervous System Physiological Phenomena; D011597:Psychomotor Performance / Q000502:physiology*; D012438:Saccades / Q000502:physiology; D014785:Vision, Ocular / Q000502:physiology*