Analysis of slow- and fast-alpha band asymmetry during performance of a saccadic eye movement task: Dissociation between memory- and attention-driven systems


Autoria(s): Sanfim, Antonio; Velasques, Bruna; Machado, Sergio; Arias-Carrion, Oscar; Paes, Flavia; Teixeira, Silmar; Santos, Joana Luz; Bittencourt, Juliana; Basile, Luis F.; Cagy, Mauricio; Piedade, Roberto; Sack, Alexander T.; Nardi, Antonio Egidio; Ribeiro, Pedro
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

29/10/2013

29/10/2013

02/08/2013

Resumo

This study aimed at analyzing the relationship between slow- and fast-alpha asymmetry within frontal cortex and the planning, execution and voluntary control of saccadic eye movements (SEM), and quantitative electroencephalography (qEEG) was recorded using a 20-channel EEG system in 12 healthy participants performing a fixed (i.e., memory-driven) and a random SEM (i.e., stimulus-driven) condition. We find main effects for SEM condition in slow- and fast-alpha asymmetry at electrodes F3-F4, which are located over premotor cortex, specifically a negative asymmetry between conditions. When analyzing electrodes F7-F8, which are located over prefrontal cortex, we found a main effect for condition in slow-alpha asymmetry, particularly a positive asymmetry between conditions. In conclusion, the present approach supports the association of slow- and fast-alpha bands with the planning and preparation of SEM, and the specific role of these sub-bands for both, the attention network and the coordination and integration of sensory information with a (oculo)-motor response. (C) 2011 Elsevier B.V. All rights reserved.

European Research Council under European Union [(FP7/2007-2013)/ERC, 263472]

European Research Council under European Union

Identificador

JOURNAL OF THE NEUROLOGICAL SCIENCES, AMSTERDAM, v. 312, n. 41306, supl. 1, Part 2, pp. 62-67, 42005, 2012

0022-510X

http://www.producao.usp.br/handle/BDPI/36169

10.1016/j.jns.2011.08.022

http://dx.doi.org/10.1016/j.jns.2011.08.022

Idioma(s)

eng

Publicador

ELSEVIER SCIENCE BV

AMSTERDAM

Relação

JOURNAL OF THE NEUROLOGICAL SCIENCES

Direitos

closedAccess

Copyright ELSEVIER SCIENCE BV

Palavras-Chave #SLOW- AND FAST-ALPHA #ASYMMETRY #ATTENTION #MEMORY #SACCADIC EYE MOVEMENT #SENSORIMOTOR INTEGRATION #DORSOLATERAL PREFRONTAL CORTEX #OCULAR MOTOR BEHAVIOR #DYNAMICS #BRAIN #MODULATIONS #INTEGRATION #SELECTION #SKILL #CLINICAL NEUROLOGY #NEUROSCIENCES
Tipo

article

original article

publishedVersion