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Cited by 682

The DOI matches its Crossref record; 7 of the 7 references it cites were found in a registry or an index.

Spatial attention affects brain activity in human primary visual cortex

Open access
Gandhi, Sunil P., Heeger, David J., Boynton, Geoffrey M.·1999·Proceedings of the National Academy of Sciences

Abstract

Functional MRI was used to test whether instructing subjects to attend to one or another location in a visual scene would affect neural activity in human primary visual cortex. Stimuli were moving gratings restricted to a pair of peripheral, circular apertures, positioned to the right and to the left of a central fixation point. Subjects were trained to perform a motion discrimination task, attending (without moving their eyes) at any moment to one of the two stimulus apertures. Functional MRI responses were recorded while subjects were cued to alternate their attention between the two apertures. Primary visual cortex responses in each hemisphere modulated with the alternation of the cue; responses were greater when the subject attended to the stimuli in the contralateral hemifield. The attentional modulation of the brain activity was about 25% of that evoked by alternating the stimulus with a uniform field.

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Crossref · 10.1073/pnas.96.6.3314

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Metadata

Authors
Gandhi, S. P., Heeger, D. J., & Boynton, G. M.
Venue
Proceedings of the National Academy of Sciences
Published
1999-03-16
Volume
96
Issue
6
Pages
3314-3319
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2008082546
Cited by
682
References
7
FWCI
17.11
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Spatial attention affects brain activity in human primary visual cortex. https://app.cochat.ai/papers/10.1073/pnas.96.6.3314
The paper
Gandhi, S. P., Heeger, D. J., & Boynton, G. M. (1999). Spatial attention affects brain activity in human primary visual cortex. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.96.6.3314

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.