Sensory gain control (amplification) as a mechanism of selective attention: electrophysiological and neuroimaging evidence

Both physiological and behavioral studies have suggested that stimulus-driven neural activity in the sensory pathways can be modulated in amplitude during selective attention. Recordings of event-related brain potentials indicate that such sensory gain control or amplification processes play an impo...

Full description

Saved in:
Bibliographic Details
Published in:Philosophical transactions of the Royal Society of London. Series B. Biological sciences 1998-08, Vol.353 (1373), p.1257-1270
Main Authors: Hillyard, Steven A., Vogel, Edward K., Luck, Steven J.
Format: Article
Language:English
Subjects:
Attention
Attention - physiology
ERPs
Evoked Potentials
Humans
PET
Radiography
Space life sciences
Tomography, Emission-Computed
Vision
Visual Cortex
Visual Cortex - diagnostic imaging
Visual Cortex - physiology
Visual Perception - physiology
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Both physiological and behavioral studies have suggested that stimulus-driven neural activity in the sensory pathways can be modulated in amplitude during selective attention. Recordings of event-related brain potentials indicate that such sensory gain control or amplification processes play an important role in visual-spatial attention. Combined event-related brain potential and neuroimaging experiments provide strong evidence that attentional gain control operates at an early stage of visual processing in extrastriate cortical areas. These data support early selection theories of attention and provide a basis for distinguishing between separate mechanisms of attentional suppression (of unattended inputs) and attentional facilitation (of attended inputs).
ISSN:0962-8436
1471-2970
DOI:10.1098/rstb.1998.0281