|
@@ -1,56 +1,56 @@
|
|
|
authors:
|
|
|
-
|
|
|
- firstname: Ricardo
|
|
|
- lastname: Kienitz
|
|
|
+ firstname: 'Ricardo'
|
|
|
+ lastname: 'Kienitz'
|
|
|
affiliation: 'Ernst Strüngmann Institute (ESI) for Neuroscience in Cooperation with Max Planck Society, Deutschordenstraße 46, 60528 Frankfurt a. M., Germany'
|
|
|
affiliation2: 'Institute of Neuroscience, Newcastle University, Framlington Place, Newcastle upon Tyne NE2 4HH, UK'
|
|
|
affiliation3: 'Epilepsy Center Frankfurt Rhine-Main, Center of Neurology and Neurosurgery, Goethe University, Schleusenweg 2-16, 60528 Frankfurt a.M., Germany'
|
|
|
-
|
|
|
firstname: 'Michele A'
|
|
|
- lastname: Cox
|
|
|
+ lastname: 'Cox'
|
|
|
affiliation: 'Department of Psychology, Vanderbilt University, 111 21st Avenue South, 301 Wilson Hall, Nashville, TN 37240, USA'
|
|
|
affiliation2: 'Department of Brain and Cognitive Sciences - University of Rochester, Meliora Hall, University of Rochester, Rochester, NY 14627'
|
|
|
-
|
|
|
- firstname: Kacie
|
|
|
+ firstname: 'Kacie'
|
|
|
lastname: Dougherty
|
|
|
affiliation: 'Department of Psychology, Vanderbilt University, 111 21st Avenue South, 301 Wilson Hall, Nashville, TN 37240, USA'
|
|
|
affiliation2: 'Princeton Neuroscience Institute, Princeton University, Washington Rd, Princeton, New Jersey 08544, USA'
|
|
|
-
|
|
|
firstname: 'Richard C'
|
|
|
- lastname: Saunders
|
|
|
+ lastname: 'Saunders'
|
|
|
affiliation: 'Laboratory of Neuropsychology, NIMH, Convent Drive 49, Bethesda, MD 20892, USA'
|
|
|
-
|
|
|
firstname: 'Joscha T'
|
|
|
- lastname: Schmiedt
|
|
|
+ lastname: 'Schmiedt'
|
|
|
affiliation: 'Ernst Strüngmann Institute (ESI) for Neuroscience in Cooperation with Max Planck Society, Deutschordenstraße 46, 60528 Frankfurt a. M., Germany'
|
|
|
-
|
|
|
firstname: 'David A'
|
|
|
- lastname: Leopold
|
|
|
+ lastname: 'Leopold'
|
|
|
affiliation: 'Laboratory of Neuropsychology, NIMH, Convent Drive 49, Bethesda, MD 20892, USA'
|
|
|
affiliation2: 'Neurophysiology Imaging Facility, NIMH, NINDS & NEI, 49 Convent Drive, Bethesda, MD 20892, USA'
|
|
|
-
|
|
|
- firstname: Alexander
|
|
|
- lastname: Maier
|
|
|
+ firstname: 'Alexander'
|
|
|
+ lastname: 'Maier'
|
|
|
affiliation: 'Department of Psychology, Vanderbilt University, 111 21st Avenue South, 301 Wilson Hall, Nashville, TN 37240, USA'
|
|
|
-
|
|
|
firstname: 'Michael C'
|
|
|
- lastname: Schmid
|
|
|
+ lastname: 'Schmid'
|
|
|
affiliation: 'Institute of Neuroscience, Newcastle University, Framlington Place, Newcastle upon Tyne NE2 4HH, UK'
|
|
|
affiliation2: 'Faculty of Science and Medicine, Chemin du Musée 5, 1700 Fribourg, Switzerland'
|
|
|
title: 'Theta but not gamma oscillations in area V4 depend on input from primary visual cortex'
|
|
|
description: 'Theta (3-9 Hz) and gamma (30-100 Hz) oscillations have been observed at different levels along the hierarchy of cortical areas and across a wide set of cognitive tasks. In the visual system, the emergence of both rhythms in primary visual cortex (V1) and mid-level cortical areas V4 have been linked with variations in perceptual reaction times [1–5]. Based on analytical methods to infer causality in neural activation patterns, it was concluded that gamma and theta oscillations might both reflect feedforward sensory processing from V1 to V4 [6–10]. Here we report on experiments in macaque monkeys in which we experimentally assessed the presence of both oscillations in the neural activity recorded from multi-electrode arrays in V1 and V4 before and after a permanent V1-lesion. With intact cortex theta and gamma oscillations could be reliably elicited in V1 and V4 when monkeys viewed a visual contour illusion and showed phase-to- amplitude coupling. Laminar analysis in V1 revealed that both theta and gamma oscillations occurred primarily in the supragranular layers, the cortical output compartment of V1. However, there was a clear dissociation between the two rhythms in V4 that became apparent when the major feedforward input to V4 was removed by lesioning V1: While V1 lesioning eliminated V4 theta, it had little effect on V4 gamma power except for delaying its emergence by >100 ms. These findings suggest that theta is more tightly associated with feedforward processing than gamma and pose limits on the proposed role of gamma as a feedforward mechanism.'
|
|
|
keywords:
|
|
|
- - Neuroscience
|
|
|
+ - 'Neuroscience'
|
|
|
- 'Visual cortex'
|
|
|
- 'primary visual cortex (V1)'
|
|
|
- - V4
|
|
|
- - oscillations
|
|
|
- - rhythms
|
|
|
- - theta
|
|
|
- - gamma
|
|
|
- - lesion
|
|
|
- - feedforward
|
|
|
- - feedback
|
|
|
+ - 'V4'
|
|
|
+ - 'oscillations'
|
|
|
+ - 'rhythms'
|
|
|
+ - 'theta'
|
|
|
+ - 'gamma'
|
|
|
+ - 'lesion'
|
|
|
+ - 'feedforward'
|
|
|
+ - 'feedback'
|
|
|
license:
|
|
|
name: 'CC BY-NC-SA 4.0'
|
|
|
url: 'https://creativecommons.org/licenses/by-nc-sa/4.0/'
|