Hierarchy of cortical responses underlying binocular rivalry.
During binocular rivalry, physical stimulation is dissociated from conscious visual awareness. Human brain imaging reveals a tight linkage between the neural events in human primary visual cortex (V1) and the dynamics of perceptual waves during transitions in dominance during binocular rivalry. Here, we report results from experiments in which observers' attention was diverted from the rival stimuli, implying that: competition between two rival stimuli involves neural circuits in V1, and attention is crucial for the consequences of this neural competition to advance to higher visual areas and promote perceptual waves.
Lee
Sang-Hun
SH
Department of Psychology, Seoul National University, Shillim, Gwanak, Seoul 151-746, South Korea. visionsl@snu.ac.kr
Blake
Randolph
R
Heeger
David J
DJ
D000328:Adult; D001288:Attention / Q000502:physiology; D001931:Brain Mapping; D023882:Dominance, Ocular; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008279:Magnetic Resonance Imaging; D008297:Male; D010100:Oxygen / Q000097:blood; D010364:Pattern Recognition, Visual / Q000502:physiology; D010775:Photic Stimulation / Q000379:methods; D011601:Psychophysics; D011930:Reaction Time; D015348:Vision, Binocular / Q000502:physiology*; D014793:Visual Cortex / Q000098:blood supply / Q000502:physiology*; D014795:Visual Pathways / Q000502:physiology
D010100:Oxygen