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  Neuronal Discharges and Gamma Oscillations Explicitly Reflect Visual Consciousness in the Lateral Prefrontal Cortex

Panagiotaropoulos, T., Deco, G., Kapoor, V., & Logothetis, N. (2012). Neuronal Discharges and Gamma Oscillations Explicitly Reflect Visual Consciousness in the Lateral Prefrontal Cortex. Neuron, 74(5), 924-935. doi:10.1016/j.neuron.2012.04.013.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-B71C-3 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-8820-1
Genre: Journal Article

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Panagiotaropoulos, TI1, 2, Author              
Deco, G, Author
Kapoor, V1, 2, Author              
Logothetis, NK1, 2, Author              
Affiliations:
1Department Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497798              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              

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 Abstract: Neuronal discharges in the primate temporal lobe, but not in the striate and extrastriate cortex, reliably reflect stimulus awareness. However, it is not clear whether visual consciousness should be uniquely localized in the temporal association cortex. Here we used binocular flash suppression to investigate whether visual awareness is also explicitly reflected in feature-selective neural activity of the macaque lateral prefrontal cortex (LPFC), a cortical area reciprocally connected to the temporal lobe. We show that neuronal discharges in the majority of single units and recording sites in the LPFC follow the phenomenal perception of a preferred stimulus. Furthermore, visual awareness is reliably reflected in the power modulation of high-frequency (>50 Hz) local field potentials in sites where spiking activity is found to be perceptually modulated. Our results suggest that the activity of neuronal populations in at least two association cortical areas represents the content of conscious visual perception.

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 Dates: 2012-06
 Publication Status: Published in print
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 Identifiers: DOI: 10.1016/j.neuron.2012.04.013
BibTex Citekey: PanagiotaropoulosDKL2012
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Title: Neuron
Source Genre: Journal
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Pages: - Volume / Issue: 74 (5) Sequence Number: - Start / End Page: 924 - 935 Identifier: -