Top-down control of visual sensory processing during an ocular motor response inhibition task

Clementz, Brett A.; Gao, Yuan; McDowell, Jennifer E.; Moratti, Stephan; Keedy, Sarah K. y Sweeney, John A. (2010). Top-down control of visual sensory processing during an ocular motor response inhibition task. "Psychophysiology", v. 47 (n. 6); pp. 1011-1018. ISSN 0048-5772. https://doi.org/10.1111/j.1469-8986.2010.01026.x.

Descripción

Título: Top-down control of visual sensory processing during an ocular motor response inhibition task
Autor/es:
  • Clementz, Brett A.
  • Gao, Yuan
  • McDowell, Jennifer E.
  • Moratti, Stephan
  • Keedy, Sarah K.
  • Sweeney, John A.
Tipo de Documento: Artículo
Título de Revista/Publicación: Psychophysiology
Fecha: Noviembre 2010
Volumen: 47
Materias:
Palabras Clave Informales: Attention;Bias signal;EEG;Saccade;Antisaccade;Visual steady state
Escuela: E.T.S.I. Telecomunicación (UPM)
Departamento: Tecnología Fotónica [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

The study addressed whether top-down control of visual cortex supports volitional behavioral control in a novel antisaccade task. The hypothesis was that anticipatory modulations of visual cortex activity would differentiate trials on which subjects knew an anti- versus a pro-saccade response was required. Trials consisted of flickering checkerboards in both peripheral visual fields, followed by brightening of one checkerboard (target) while both kept flickering. Neural activation related to checkerboards before target onset (bias signal) was assessed using electroencephalography. Pretarget visual cortex responses to checkerboards were strongly modulated by task demands (significantly lower on antisaccade trials), an effect that may reduce the predisposition to saccade generation instigated by visual capture. The results illustrate how top-down sensory regulation can complement motor preparation to facilitate adaptive voluntary behavioral control.

Más información

ID de Registro: 8603
Identificador DC: http://oa.upm.es/8603/
Identificador OAI: oai:oa.upm.es:8603
Identificador DOI: 10.1111/j.1469-8986.2010.01026.x
URL Oficial: http://onlinelibrary.wiley.com/doi/10.1111/j.1469-8986.2010.01026.x/abstract
Depositado por: Memoria Investigacion
Depositado el: 09 Ago 2011 10:44
Ultima Modificación: 20 Abr 2016 17:19
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