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Percept-switch nucleation in binocular rivalry reveals local adaptation characteristics of early visual processing
- Source :
- Journal of Vision. 11:13-13
- Publication Year :
- 2011
- Publisher :
- Association for Research in Vision and Ophthalmology (ARVO), 2011.
-
Abstract
- When the two eyes view incompatible images that subtend the entire visual field, perception alternates between the two images unpredictably: at seemingly random times and locations, observers experience sudden changes in the awareness of the unchanging visual stimulation. Here we focus on the very first spontaneous breakout from the very first suppression phase after onset of the two eyes' competing whole-field stimuli. We call such spontaneous local breakout an "initial percept-switch nucleation." We employed homogeneous visual input to examine where, and how, spontaneous local initial percept-switch nucleations originate, demonstrating that their spatial distribution contains locally random inhomogeneities, which are eye- and observer-dependent. We were able to predict the occurrence probability of the percept nucleations by adaptation buildup of the neurons associated with the representation of one eye's image. Intriguingly, the neuronal processes related to both cross-inhibition and local eye dominance could not predict nucleation probability; this is because nucleation inhomogeneity appeared to be different from another previously reported local inhomogeneity known as "onset bias" signifying the local first dominance-choice inhomogeneity upon stimulus onset. Collectively, we reveal a governing role of local adaptation in the neurons associated with early visual processing of one eye's image, in the origination of new phases in awareness.
- Subjects :
- Binocular rivalry
Time Factors
Vision Disparity
genetic structures
Computer science
media_common.quotation_subject
Stimulus (physiology)
Ocular dominance
Visual processing
Perception
Humans
Visual Pathways
Local adaptation
media_common
Communication
business.industry
Awareness
Adaptation, Physiological
eye diseases
Sensory Systems
Visual field
Dominance, Ocular
Ophthalmology
Visual Perception
sense organs
Visual Fields
Percept
business
Neuroscience
Photic Stimulation
Subjects
Details
- ISSN :
- 15347362
- Volume :
- 11
- Database :
- OpenAIRE
- Journal :
- Journal of Vision
- Accession number :
- edsair.doi.dedup.....bc3a76873cd35018e39bb83487ac3cb1