Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/59069
Title: A role of Eye Vergence in Covert Attention
Author: Maria Solé Puig
Laura Pérez Zapata
Aznar Casanova, José Antonio
Hans Supèr
Keywords: Comunicació visual
Tests de percepció visual
Circuit neuronal
Visual communication
Visual perception tests
Neural circuitry
Issue Date: 1-Jan-2013
Publisher: Public Library of Science (PLoS)
Abstract: Covert spatial attention produces biases in perceptual and neural responses in the absence of overt orienting movements. The neural mechanism that gives rise to these effects is poorly understood. Here we report the relation between fixational eye movements, namely eye vergence, and covert attention. Visual stimuli modulate the angle of eye vergence as a function of their ability to capture attention. This illustrates the relation between eye vergence and bottom-up attention. In visual and auditory cue/no-cue paradigms, the angle of vergence is greater in the cue condition than in the no-cue condition. This shows a top-down attention component. In conclusion, observations reveal a close link between covert attention and modulation in eye vergence during eye fixation. Our study suggests a basis for the use of eye vergence as a tool for measuring attention and may provide new insights into attention and perceptual disorders.
Note: Reproducció del document publicat a: 10.1371/journal.pone.0052955
It is part of: PLoS One, 2013, vol. 8, num. 1
Related resource: http://dx.doi.org/10.1371/journal.pone.0052955
URI: http://hdl.handle.net/2445/59069
ISSN: 1932-6203
Appears in Collections:Articles publicats en revistes (Cognició, Desenvolupament i Psicologia de l'Educació)

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