Object-based attentional selection modulates anticipatory alpha oscillations

Balázs Knakker, Béla Weiss, Z. Vidnyánszky

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Visual cortical alpha oscillations are involved in attentional gating of incoming visual information. It has been shown that spatial and feature-based attentional selection result in increased alpha oscillations over the cortical regions representing sensory input originating from the unattended visual field and task-irrelevant visual features, respectively. However, whether attentional gating in the case of object based selection is also associated with alpha oscillations has not been investigated before. Here we measured anticipatory electroencephalography (EEG) alpha oscillations while participants were cued to attend to foveal face or word stimuli, the processing of which is known to have right and left hemispheric lateralization, respectively. The results revealed that in the case of simultaneously displayed, overlapping face and word stimuli, attending to the words led to increased power of parieto-occipital alpha oscillations over the right hemisphere as compared to when faces were attended. This object category-specific modulation of the hemispheric lateralization of anticipatory alpha oscillations was maintained during sustained attentional selection of sequentially presented face and word stimuli. These results imply that in the case of object-based attentional selection—similarly to spatial and feature-based attention—gating of visual information processing might involve visual cortical alpha oscillations.

Original languageEnglish
Article number1048
JournalFrontiers in Human Neuroscience
Volume8
Issue numberJAN
DOIs
Publication statusPublished - Jan 12 2015

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Word Processing
Visual Fields
Automatic Data Processing
Electroencephalography
Power (Psychology)

Keywords

  • Alpha oscillations
  • EEG
  • Faces
  • Object-based attention
  • Words

ASJC Scopus subject areas

  • Psychiatry and Mental health
  • Neurology
  • Biological Psychiatry
  • Behavioral Neuroscience
  • Neuropsychology and Physiological Psychology

Cite this

Object-based attentional selection modulates anticipatory alpha oscillations. / Knakker, Balázs; Weiss, Béla; Vidnyánszky, Z.

In: Frontiers in Human Neuroscience, Vol. 8, No. JAN, 1048, 12.01.2015.

Research output: Contribution to journalArticle

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