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Local field potential reflects perceptual suppression in monkey visual cortex
Open accessAbstract
Neurophysiological and functional imaging experiments remain in apparent disagreement on the role played by the earliest stages of the visual cortex in supporting a visual percept. Here, we report electrophysiological findings that shed light on this issue. We monitored neural activity in the visual cortex of monkeys as they reported their perception of a high-contrast visual stimulus that was induced to vanish completely from perception on a subset of trials. We found that the spiking of neurons in cortical areas V1 and V2 was uncorrelated with the perceptual visibility of the target, whereas that in area V4 showed significant perception-related changes. In contrast, power changes in the lower frequency bands (particularly 9-30 Hz) of the local field potential (LFP), collected on the same trials, showed consistent and sustained perceptual modulation in all three areas. In addition, for the gamma frequency range (30-50 Hz), the responses during perceptual suppression of the target were correlated significantly with the responses to its physical removal in all areas, although the modulation magnitude was considerably higher in area V4 than in V1 and V2. These results, taken together, suggest that low-frequency LFP power in early cortical processing is more closely related to the representation of stimulus visibility than is spiking or higher frequency LFP activity.
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“Work conducted by Wolf Singer and colleagues in the 1990s demonstrated that neurons in the monkey brain fire synchronously when the animal attends to the stimulus [14], and additional studies confirmed and extended these findings [15].”
From The electromagnetic will (2021) · cites this paper as [15]
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Metadata
- Authors
- Wilke, M., Logothetis, N. K., & Leopold, D. A.
- Affiliations
- Max Planck Institute for Biological Cybernetics (DE)
- Max Planck Society (DE)
- Venue
- Proceedings of the National Academy of Sciences
- Publisher
- National Academy of Sciences
- Published
- 2006-11-14
- Volume
- 103
- Issue
- 46
- Pages
- 17507-17512
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- PMC
- PMC1859959
- OpenAlex
- W2047426925
- Cited by
- 187
- References
- 36
- Citations by year
- 2026: 2 · 2025: 6 · 2024: 1 · 2023: 4 · 2022: 6 · 2021: 7 · 2020: 5 · 2019: 5 · 2018: 1 · 2017: 7 · 2016: 2 · 2015: 12 · 2014: 17 · 2013: 22 · 2012: 16
- FWCI
- 7.12
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Proceedings of the National Academy of Sciences (publishedVersion)
- Europe PMC (PubMed Central) (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Max Planck Institute for Plasma Physics (submittedVersion)
- GRO (submittedVersion)
- MPG.PuRe (Max Planck Society) (submittedVersion, cc-by)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Multisensory perception and integration
- Keywords
- local field potentials, perceptual suppression, visual cortex, area V4, area V1, V2, gamma oscillations, visual perception, stimulus visibility, early visual processing, macaque
- MeSH terms
- Animals, Humans, Light, Macaca mulatta, Male, Visual Cortex, Visual Fields, Visual Perception
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