Dedicated to Gunnar Wallin.
Neurophysiological analysis of target-related sympathetic pathways – from animal to human: similarities and differences*
Version of Record online: 28 FEB 2003
Acta Physiologica Scandinavica
Volume 177, Issue 3, pages 255–274, March 2003
How to Cite
Jänig, W. and Häbler, H.-J. (2003), Neurophysiological analysis of target-related sympathetic pathways – from animal to human: similarities and differences. Acta Physiologica Scandinavica, 177: 255–274. doi: 10.1046/j.1365-201X.2003.01088.x
Present address: Heinz-Joachim Häbler, Fachhochschule Bonn-Rhein-Sieg, Von-Liebig-Str. 20, 53359 Rheinbach, Germany.
This study was conducted on subjects with skin temperature on the big toe adjusted to 20–22 °C by mild whole-body cooling. Thus, the subjects were in a thermoregulatory state in which the activity in the CVC neurons was present (see footnote 2).
Responses of blood flow through glabrous skin in humans (monitored by laser Doppler flowmetry or photoelectrical pulse plethysmography) to arousal, mental stress and deep breath very much depend on the thermoregulatory state of the subjects (generated experimentally by whole-body cooling or warming). At skin temperatures of 30 °C (when activity in CVC neurons is low or absent) these stimuli generate vasoconstriction in skin. At skin temperature of 25 °C (when activity in CVC neurons is high) these stimuli generate vasodilation in skin. It is unclear whether the vasodilation is because of decrease of activity in CVC neurons or because of activation of cutaneous vasodilator neurons ( Oberle et al. 1988 ).
- Issue online: 28 FEB 2003
- Version of Record online: 28 FEB 2003
- Received 1 November 2002, accepted 15 December 2002
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