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Whatever Became of the Ascending Reticular Activating System?

  • C. H. Vanderwolf
Chapter

Abstract

According to conventional ideas on the subject, activation of the electrocorticogram is due to activity in the ascending reticular activating system, a diffuse system originating in the brain stem and projecting to the “non-specific” nuclei of the thalamus, especially the intralaminar nuclei. These nuclei, in turn, are supposed to send fibers to all regions of the cortex. Activity in this ascending system is said to produce neocortical activation and, therefore, to play a pivotal role in the sleep-waking cycle, arousal, consciousness, and attention.

Keywords

Locus Coeruleus Basal Forebrain Spike Count Intralaminar Nucleus Thalamocortical Projection 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Notes on Chapter 9

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Copyright information

© Springer Science+Business Media New York 2003

Authors and Affiliations

  • C. H. Vanderwolf
    • 1
  1. 1.University of Western OntarioLondonCanada

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