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The asynchrony of consciousness

S Zeki1, A Bartels

  • 1Wellcome Department of Cognitive Neurology, University College, London, UK.

Proceedings. Biological Sciences
|September 23, 1998
PubMed
Summary

Visual consciousness may involve multiple, asynchronous systems reflecting the brain's modular design. Simultaneous visual attributes, like color and motion, can be consciously perceived independently, suggesting separate conscious experiences.

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Psychophysics

Background:

  • The visual brain exhibits modular organization, with specialized processing systems.
  • Psychophysical evidence indicates temporal asynchrony in the conscious perception of visual attributes.

Purpose of the Study:

  • To propose a hypothesis on a characteristic of visual consciousness.
  • To explain the temporal asynchrony in visual perception based on brain organization.

Main Methods:

  • Derivation of hypothesis from established facts about the visual brain.
  • Analysis of psychophysical evidence on the timing of visual attribute perception.

Main Results:

  • Temporal asynchrony in perception suggests a plurality of asynchronous visual consciousnesses.
  • Activity within a single visual processing system may suffice for conscious experience of an attribute.

Conclusions:

  • Visual consciousness is likely modular and asynchronous, mirroring the brain's structure.
  • Binding of neural activity across systems may represent binding of conscious experiences, not neural processes themselves.

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