Staff View: Snakes elicit earlier, and monkey faces, later, gamma oscillations in macaque pulvinar neurons

Snakes elicit earlier, and monkey faces, later, gamma oscillations in macaque pulvinar neurons

Gamma oscillations (30–80 Hz) have been suggested to be involved in feedforward visual information processing, and might play an important role in detecting snakes as predators of primates. In the present study, we analyzed gamma oscillations of pulvinar neurons in the monkeys during a delayed non-m...

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Main Authors:	Le, Quan Van, Isbell, Lynne A., Matsumoto, Jumpei, Le, Van Quang, Nishimaru, Hiroshi, Hori, Etsuro, Maior, Rafael Plakoudi Souto, Tomaz, Carlos, Ono, Taketoshi, Nishijo, Hisao
Format:	Artigo
Language:	Inglês
Published:	Nature.com 2017
Subjects:	Cobras Primatas Predador Neurônios
Online Access:	http://repositorio.unb.br/handle/10482/24686 https://dx.doi.org/10.1038/srep20595
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spelling	ir-10482-246862020-11-11T16:42:05Z Snakes elicit earlier, and monkey faces, later, gamma oscillations in macaque pulvinar neurons Le, Quan Van Isbell, Lynne A. Matsumoto, Jumpei Le, Van Quang Nishimaru, Hiroshi Hori, Etsuro Maior, Rafael Plakoudi Souto Tomaz, Carlos Ono, Taketoshi Nishijo, Hisao Cobras Primatas Predador Neurônios Gamma oscillations (30–80 Hz) have been suggested to be involved in feedforward visual information processing, and might play an important role in detecting snakes as predators of primates. In the present study, we analyzed gamma oscillations of pulvinar neurons in the monkeys during a delayed non-matching to sample task, in which monkeys were required to discriminate 4 categories of visual stimuli (snakes, monkey faces, monkey hands and simple geometrical patterns). Gamma oscillations of pulvinar neuronal activity were analyzed in three phases around the stimulus onset (Pre-stimulus: 500 ms before stimulus onset; Early: 0–200 ms after stimulus onset; and Late: 300–500 ms after stimulus onset). The results showed significant increases in mean strength of gamma oscillations in the Early phase for snakes and the Late phase for monkey faces, but no significant differences in ratios and frequencies of gamma oscillations among the 3 phases. The different periods of stronger gamma oscillations provide neurophysiological evidence that is consistent with other studies indicating that primates can detect snakes very rapidly and also cue in to faces for information. Our results are suggestive of different roles of gamma oscillations in the pulvinar: feedforward processing for images of snakes and cortico-pulvinar-cortical integration for images of faces. 2017-10-02T15:27:43Z 2017-10-02T15:27:43Z 2016-02-08 Artigo LE, Quan Van et al. Snakes elicit earlier, and monkey faces, later, gamma oscillations in macaque pulvinar neurons. Scientific Reports, v. 6, Article 20595, 8 fev. 2016. Disponível em: <https://www.nature.com/articles/srep20595>. Acesso em: 4 jul. 2017. doi: 0.1038/srep20595. http://repositorio.unb.br/handle/10482/24686 https://dx.doi.org/10.1038/srep20595 Inglês Acesso Aberto This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. Fonte: <https://www.nature.com/articles/srep20595>. Acesso em: 4 jul. 2017. application/pdf Nature.com
institution	REPOSITORIO UNB
collection	REPOSITORIO UNB
language	Inglês
topic	Cobras Primatas Predador Neurônios
spellingShingle	Cobras Primatas Predador Neurônios Le, Quan Van Isbell, Lynne A. Matsumoto, Jumpei Le, Van Quang Nishimaru, Hiroshi Hori, Etsuro Maior, Rafael Plakoudi Souto Tomaz, Carlos Ono, Taketoshi Nishijo, Hisao Snakes elicit earlier, and monkey faces, later, gamma oscillations in macaque pulvinar neurons
description	Gamma oscillations (30–80 Hz) have been suggested to be involved in feedforward visual information processing, and might play an important role in detecting snakes as predators of primates. In the present study, we analyzed gamma oscillations of pulvinar neurons in the monkeys during a delayed non-matching to sample task, in which monkeys were required to discriminate 4 categories of visual stimuli (snakes, monkey faces, monkey hands and simple geometrical patterns). Gamma oscillations of pulvinar neuronal activity were analyzed in three phases around the stimulus onset (Pre-stimulus: 500 ms before stimulus onset; Early: 0–200 ms after stimulus onset; and Late: 300–500 ms after stimulus onset). The results showed significant increases in mean strength of gamma oscillations in the Early phase for snakes and the Late phase for monkey faces, but no significant differences in ratios and frequencies of gamma oscillations among the 3 phases. The different periods of stronger gamma oscillations provide neurophysiological evidence that is consistent with other studies indicating that primates can detect snakes very rapidly and also cue in to faces for information. Our results are suggestive of different roles of gamma oscillations in the pulvinar: feedforward processing for images of snakes and cortico-pulvinar-cortical integration for images of faces.
format	Artigo
author	Le, Quan Van Isbell, Lynne A. Matsumoto, Jumpei Le, Van Quang Nishimaru, Hiroshi Hori, Etsuro Maior, Rafael Plakoudi Souto Tomaz, Carlos Ono, Taketoshi Nishijo, Hisao
author_sort	Le, Quan Van
title	Snakes elicit earlier, and monkey faces, later, gamma oscillations in macaque pulvinar neurons
title_short	Snakes elicit earlier, and monkey faces, later, gamma oscillations in macaque pulvinar neurons
title_full	Snakes elicit earlier, and monkey faces, later, gamma oscillations in macaque pulvinar neurons
title_fullStr	Snakes elicit earlier, and monkey faces, later, gamma oscillations in macaque pulvinar neurons
title_full_unstemmed	Snakes elicit earlier, and monkey faces, later, gamma oscillations in macaque pulvinar neurons
title_sort	snakes elicit earlier, and monkey faces, later, gamma oscillations in macaque pulvinar neurons
publisher	Nature.com
publishDate	2017
url	http://repositorio.unb.br/handle/10482/24686 https://dx.doi.org/10.1038/srep20595
_version_	1683626961938677760
score	13.657419

Snakes elicit earlier, and monkey faces, later, gamma oscillations in macaque pulvinar neurons

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