Cited by 347Visual perception and processing mechanismsMotor Control and AdaptationMultisensory perception and integration

Separate Signals for Target Selection and Movement Specification in the Superior Colliculus

Horwitz, Gregory D., Newsome, William T.·1999·Science

Abstract

At any given instant, multiple potential targets for saccades are present in the visual world, implying that a “selection process” within the brain determines the target of the next eye movement. Some superior colliculus (SC) neurons begin discharging seconds before saccade initiation, suggesting involvement in target selection or, alternatively, in postselectional saccade preparation. SC neurons were recorded in monkeys who selected saccade targets on the basis of motion direction in a visual display. Some neurons carried a direction-selective visual signal, consistent with a role in target selection in this task, whereas other SC neurons appeared to be more involved in postselection specification of saccade parameters.

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Crossref · 10.1126/science.284.5417.1158

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17 of 17 references verified0 citation errors · 0 not checkable

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  • The transition from accumulation of evidence to commitment involves interactions between several brain areas.

    “it is likely that the transition from accumulation of evidence to commitment involves interactions between several brain areas.”
  • In trained monkeys, multiple brain areas including LIP, the superior colliculus and parts of the prefrontal cortex including the FEF exhibit similar sensory-motor responses during performance of the discrimination task.

    “In trained monkeys, multiple brain areas including LIP, the superior colliculus and parts of the prefrontal cortex including the FEF exhibit similar sensory-motor responses during performance of the discrimination task24, 25, 27, 28.”

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Authors
Horwitz, G. D., & Newsome, W. T.
Affiliations
Howard Hughes Medical Institute (US)
Corresponding author
Newsome, William T.
Venue
Science
Published
1999-05-14
Volume
284
Issue
5417
Pages
1158-1161
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2135672633
Cited by
346
References
17
Citations by year
2026: 11 · 2025: 10 · 2024: 13 · 2023: 14 · 2022: 13 · 2021: 13 · 2020: 9 · 2019: 9 · 2018: 16 · 2017: 12 · 2016: 18 · 2015: 15 · 2014: 15 · 2013: 15 · 2012: 13
FWCI
7.58
Type
journal article
Language
en
Open access
closed
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institutes of Health (5T32NH17047-17)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Motor Control and Adaptation
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Multisensory perception and integration
Keywords
superior colliculus, saccade target selection, saccade preparation, direction-selective neurons, eye movements, visual motion direction
MeSH terms
Animals, Macaca mulatta, Motion Perception, Neurons, Photic Stimulation, Saccades, Superior Colliculi, Visual Perception

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