Cited by 448Visual perception and processing mechanismsVisual Attention and Saliency DetectionMultisensory perception and integration

Spatial Attention Effects in Macaque Area V4

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Connor, Charles E., Preddie, Dean C., Gallant, Jack L., Van Essen, David C.·1997·The Journal of Neuroscience

Abstract

Focal visual attention typically produces enhanced perceptual processing at the psychological level and relatively stronger neural responses at the physiological level. A longstanding mechanistic question is whether these attentional effects pertain specifically to the attended (target) object or to the region of space it occupies. We show here that attentional response enhancement in macaque area V4 extends to behaviorally irrelevant objects in the vicinity of the target object, indicating that focal attention has a strong spatial component at the physiological level. In addition, we find that spatial attention effects typically show a striking directional asymmetry. The direction of the asymmetry varies between cells, so that some cells respond best when attention is directed to the left of the stimulus, some when attention is directed to the right, etc. Thus, attention involves not only enhanced responses to behavioral targets but also a complex modulation of responses to other stimuli in the surrounding visual space.

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Crossref · 10.1523/jneurosci.17-09-03201.1997

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  • In non-human primate visual system, visual spatial attention within the receptive field of a recorded neuron enhances both contrast gain and response gain.

    “Attentional modulation of neural gain has been particularly well studied in the non-human primate visual system1,42,43, in which visual spatial attention within the receptive field of a recorded neuron enhances both contrast gain (that is, scaling of that neuron’s stimulus-response relationship along the contrast axis)43 and response gain (that is, multiplicative transformation of responses to all”

    From Mechanisms underlying gain modulation in the cortex (2020) · cites this paper as [45]

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Authors
Connor, C. E., Preddie, D. C., Gallant, J. L., & Van Essen, D. C.
Affiliations
Washington University in St. Louis (US)
Venue
The Journal of Neuroscience
Published
1997-05-01
Volume
17
Issue
9
Pages
3201-3214
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2169534307
Cited by
448
References
44
Citations by year
2026: 7 · 2025: 13 · 2024: 8 · 2023: 4 · 2022: 9 · 2021: 8 · 2020: 8 · 2019: 6 · 2018: 7 · 2017: 15 · 2016: 17 · 2015: 13 · 2014: 14 · 2013: 13 · 2012: 11
FWCI
14.08
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • Office of Naval Research
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Visual Attention and Saliency Detection
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Multisensory perception and integration
Keywords
spatial attention, area V4, macaque visual cortex, directional asymmetry, visual space
MeSH terms
Animals, Attention, Macaca, Photic Stimulation, Spatial Behavior, Visual Cortex

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