Abstract
Variations in the volume of the sensory cortex (homunculus) assigned to different skin regions may lead one to postulate that thermal stimulation of some body segments (e.g. face, hand) may evoke more powerful autonomic responses. That is, there may exist a mosaic of cutaneous thermosensitivity. To study thermosensitivity, thermal feedback from sites other than the treated site needs to be minimised. This is achieved via whole-body clamping of deep-body and skin temperatures. Previously, greater sensitivity of the face was observed for sudomotor control in mildly hyperthermic individuals [1], so the aim of this investigation was to explore possible sensitivity variations in the control of skin blood flow during isolated stimulation of three sites, but after a normothermic clamp had been established.
Highlights
Variations in the volume of the sensory cortex assigned to different skin regions may lead one to postulate that thermal stimulation of some body segments may evoke more powerful autonomic responses
Thermal feedback from sites other than the treated site needs to be minimised. This is achieved via whole-body clamping of deep-body and skin temperatures
Greater sensitivity of the face was observed for sudomotor control in mildly hyperthermic individuals [1], so the aim of this investigation was to explore possible sensitivity variations in the control of skin blood flow during isolated stimulation of three sites, but after a normothermic clamp had been established
Summary
Cutaneous thermosensitivity differences among the face, hand or thigh appear not to exist for skin blood flow during normothermic states. Catriona A Burdon, Kyoko Tagami, Joonhee Park, Joanne N Caldwell, Nigel AS Taylor*. From 15th International Conference on Environmental Ergonomics (ICEE XV) Portsmouth, UK. From 15th International Conference on Environmental Ergonomics (ICEE XV) Portsmouth, UK. 28 June - 3 July 2015
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