Immune Responses to Experimental Stress: Effects of Mental Effort and Uncontrollability
Madelon L. Peters, PhD,
Guido L. R. Godaert, PhD,
Rudy E. Ballieux, PhD,
Jos F. Brosschot, PhD,
Fred C. G. J. Sweep, PhD,
Leon M. J. W. Swinkels, PhD,
Marja van Vliet and
Cobi. J. Heijnen, PhD
From the Department of Medical, Clinical, and Experimental Psychology, University of Maastricht, Maastricht (M.L.P); Department of Health Psychology, (G.L.R.G.), Department of Medical Physiology and Sports Medicine (R.E.B., M.V.), and Wilhelmina Childrens Hospital (C.J.H.), University of Utrecht, Utrecht; Department of Clinical and Health Psychology, University of Leiden (J.F.B.); and Department of Chemical Endocrinology, Academic Hospital Nijmegen, St. Radboud, Nijmegen (F.C.G.J., L.M.J.W.S.), The Netherlands.

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Fig. 1. Number of CD16+ (NK) cells, NKCA within whole blood (1:2 dilution), lymphocyte proliferation, and mitogen-induced IL-6 production at the four measurement points for each condition. E = effort; C = controllability.
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Copyright © 1999 by the American Psychosomatic Society