Abstract
High-density EEG recordings revealed sensory specific modulation of anticipatory parieto-occipital ~10 Hz oscillatory activity when visually presented word cues instructed subjects in an intermodal selective attention paradigm. Cueing attention to the auditory features of imminent compound audio-visual stimuli resulted in significantly higher ~10 Hz amplitude in the period preceding onset of this stimulus than when attention was cued to the visual features. We propose that this parieto-occipital ~10 Hz activity reflects a disengaged visual attentional system in preparation for anticipated auditory input that is attentionally more relevant. Conversely, lower ~10 Hz activity during the attend-visual condition may reflect active engagement of parieto-occipital areas in the anticipatory period. These results support models implicating parieto-occipital areas in the directing and maintenance of visual attention.
Original language | English (US) |
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Pages (from-to) | 3929-3933 |
Number of pages | 5 |
Journal | NeuroReport |
Volume | 9 |
Issue number | 17 |
DOIs | |
State | Published - Dec 1 1998 |
Keywords
- Alpha
- Attention
- ERP
- Intermodal cueing
- Oscillatory activity
- Parietal cortex
- Visual cortex
ASJC Scopus subject areas
- General Neuroscience