Individual differences in diurnal rhythms and multiple activation states: a reply to M. W. Eysenck and Folkard.

Abstract

Three issues raised by M. W. Eysenck and Folkard are discussed. These include (a) just what individual difference variable is mediating the time of day and caffeine effects; (b) what the difference is in the diurnal rhythms of low and high impulsives; and (c) whether it is necessary to postulate multiple activation states. Suggestions for future research… (More)

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Cite this paper

@article{Humphreys1980IndividualDI, title={Individual differences in diurnal rhythms and multiple activation states: a reply to M. W. Eysenck and Folkard.}, author={Martin S. Humphreys and William Revelle and L. Sim{\'o}n and Kirby Gilliland}, journal={Journal of experimental psychology. General}, year={1980}, volume={109 1}, pages={42-8} }