A Laser Stimulator for the Study of Cutaneous Thermal and Pain Sensations

Richard A. Meyer, Ronald E. Walker, Vernon B. Mountcastle

Research output: Contribution to journalArticle


A laser thermal stimulator system is described which enables the psychophysical and neurophysiological study of cutaneous thermal and pain sensations by means of a non-contact, precise stimulator. A carbon dioxide laser is used as the heat source with closed loop control of skin temperature via a sophisticated radiometer. Temperature steps of 0.1 °C to 25°C have been achieved with rise rates of greater than 30°C/second. The temperature can be maintained to better than ±0.1°C over pulse durations of 0.3 seconds to 20 seconds.

Original languageEnglish (US)
Pages (from-to)54-60
Number of pages7
JournalIEEE Transactions on Biomedical Engineering
Issue number1
StatePublished - Jan 1976


ASJC Scopus subject areas

  • Biomedical Engineering

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