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Visuomotor integration is associated with zero time-lag synchronization among cortical areas

Nature volume 385, pages 157–161 (1997)Cite this article

Abstract

INFORMATION processing in the cerebral cortex invariably involves the activation of millions of neurons that are widely distributed over its various areas. These distributed activity patterns need to be integrated into coherent representational states. A candidate mechanism for the integration and coordination of neuronal activity between different brain regions is synchronization on a fine temporal scale1–3. In the visual cortex, synchronization occurs selectively between the responses of neurons that represent related features2–5 and that need to be integrated for the generation of coherent percepts; neurons in other areas of the cerebral cortex also synchronize their discharges6–10. However, little is known about the patterns and the behavioural correlates of synchrony among widely separated cortical regions. Here we report that synchronization occurs between areas of the visual and parietal cortex, and between areas of the parietal and motor cortex, in the awake cat. When cats responded to a sudden change of a visual pattern, neuronal activity in cortical areas exhibited synchrony without time lags; this synchrony was particularly strong between areas subserving related functions. During reward and inter-trial episodes, zero-time-lag synchrony was lost and replaced by interactions exhibiting large and unsystematic time lags.

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Authors and Affiliations

  1. Max-Planck-linstitute for Brain Research, Deutschordenstrasse 46, 60528, Frankfurt, Germany

    Pieter R. Roelfsema, Andreas K. Engel & Wolf Singer

  2. Department of Medical Physics, The Netherlands Ophthalmic Research Institute, and University of Amsterdam, P.O. Box 12141, 1100 AC, Amsterdam, The Netherlands

    Pieter R. Roelfsema

  3. The Neurosciences Institute, 10640 John Jay Hopkins Drive, San Diego, California, 92121, USA

    Peter König

Authors
  1. Pieter R. Roelfsema
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  2. Andreas K. Engel
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  3. Peter König
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  4. Wolf Singer
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Roelfsema, P., Engel, A., König, P. et al. Visuomotor integration is associated with zero time-lag synchronization among cortical areas. Nature 385, 157–161 (1997). https://doi.org/10.1038/385157a0

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