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Science 17 March 1978:
Vol. 199. no. 4334, pp. 1216 - 1218
DOI: 10.1126/science.628837
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Articles

Science, Vol 199, Issue 4334, 1216-1218
Copyright © 1978 by American Association for the Advancement of Science

articles

Pupillometric signs of brain activation vary with level of cognitive processing

J Beatty and BL Wagoner

The idea that hierarchically higher brain processes require greater amounts of central nervous system vigilance or activation for their execution was tested in two experiments measuring pupillary dilation during the decision interval of a hierarchically structured letter-matching task. Larger dilations indicative of increased activation were observed for letter pairs requiring higher levels of processing.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Eye Activity Correlates of Workload during a Visuospatial Memory Task.
K. F. Van Orden, W. Limbert, S. Makeig, and T.-P. Jung (2001)
Human Factors: The Journal of the Human Factors and Ergonomics Society 43, 111-121
   Abstract »    PDF »
Effect of Lithium on Mood, Cognition, and Personality Function in Normal Subjects.
L. L. Judd (1979)
Arch Gen Psychiatry 36, 860-865
   Abstract »    PDF »


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