Abstract
In an accompanying communication, it was revealed that local variations in cutaneous thermosensitivity, with respect to the control of skin blood flow, were not evident in normothermic individuals. Previously, greater thermosensitivity of the face relative to other sites, including the hand and thigh, was observed for sudomotor control in mildly hyperthermic individuals. Therefore, the possibility was tested that such variations may also exist for vasomotor control when subjects were first rendered mildly hyperthermic.
Highlights
In an accompanying communication, it was revealed that local variations in cutaneous thermosensitivity, with respect to the control of skin blood flow, were not evident in normothermic individuals
Vasomotor sensitivity was calculated for each stimulation from the change in segmental blood flow divided by the change in skin temperature at each treated site
Consistent with previous sudomotor research, the face, and the hand, displayed greater cutaneous thermosensitivity in mildly hyperthermic subjects. These vascular responses are consistent with the representation of each treated site within the sensory cortex, and this may relate to local variations in thermoreceptor density
Summary
It was revealed that local variations in cutaneous thermosensitivity, with respect to the control of skin blood flow, were not evident in normothermic individuals. Greater thermosensitivity of the face relative to other sites, including the hand and thigh, was observed for sudomotor control in mildly hyperthermic individuals. The possibility was tested that such variations may exist for vasomotor control when subjects were first rendered mildly hyperthermic
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