Neuronal mechanisms for visual stability: Progress and problems

Robert H. Wurtz, Wilsaan Joiner, Rebecca A. Berman

Research output: Contribution to journalReview article

76 Citations (Scopus)

Abstract

How our vision remains stable in spite of the interruptions produced by saccadic eye movements has been a repeatedly revisited perceptual puzzle. The major hypothesis is that a corollary discharge (CD) or efference copy signal provides information that the eye has moved, and this information is used to compensate for the motion. There has been progress in the search for neuronal correlates of such a CD in the monkey brain, the best animal model of the human visual system. In this article, we briefly summarize the evidence for a CD pathway to frontal cortex, and then consider four questions on the relation of neuronal mechanisms in the monkey brain to stable visual perception. First, how can we determine whether the neuronal activity is related to stable visual perception? Second, is the activity a possible neuronal correlate of the proposed transsaccadic memory hypothesis of visual stability? Third, are the neuronal mechanisms modified by visual attention and does our perceived visual stability actually result from neuronal mechanisms related primarily to the central visual field? Fourth, does the pathway from superior colliculus through the pulvinar nucleus to visual cortex contribute to visual stability through suppression of the visual blur produced by saccades? This journal is

Original languageEnglish (US)
Pages (from-to)492-503
Number of pages12
JournalPhilosophical Transactions of the Royal Society B: Biological Sciences
Volume366
Issue number1564
DOIs
StatePublished - Feb 27 2011
Externally publishedYes

Fingerprint

Visual Perception
Saccades
Haplorhini
monkeys
Eye movements
eyes
Pulvinar
brain
Superior Colliculi
Brain
Frontal Lobe
Visual Cortex
Visual Fields
Animal Models
animal models
Animals
Data storage equipment
visual perception
visual cortex
frontal lobe

Keywords

  • Corollary discharge
  • Efference copy
  • Frontal eye field
  • Medial dorsal nucleus
  • Superior colliculus
  • Visual stability

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)

Cite this

Neuronal mechanisms for visual stability : Progress and problems. / Wurtz, Robert H.; Joiner, Wilsaan; Berman, Rebecca A.

In: Philosophical Transactions of the Royal Society B: Biological Sciences, Vol. 366, No. 1564, 27.02.2011, p. 492-503.

Research output: Contribution to journalReview article

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