The motivation to behaviorally thermoregulate during passive heat exposure in humans is dependent on the magnitude of increases in skin temperature

Publication date: Available online 11 July 2018Source: Physiology &BehaviorAuthor(s): Nicole T. Vargas, Julia Slyer, Christopher L. Chapman, Blair D. Johnson, Jennifer L. Temple, Elizabeth G. Mietlicki-Baase, Zachary J. SchladerAbstractWe tested the hypothesis that the motivation to behaviorally thermoregulate in humans is dependent on the magnitude of changes in mean skin temperature. Ten healthy subjects (22 ± 3 y, 5 females) underwent 60 min of seated rest in a 32±1 °C or 42±1 °C environment (20% relative humidity). Trials were completed in a counterbalanced order. The motivation to behaviorally thermoregulate was measured using an operant behavior task on a fixed ratio schedule, in which subjects received thermal reinforcement after clicking a button 100 times. The reinforcer was 30 s of cooling on the dorsal aspect of the neck. The motivation to behave was defined as the cumulative number of button clicks over time and behavioral thermoregulation was defined as the change in neck skin temperature. Mean skin temperature was higher throughout the 42 °C versus the 32 °C trial (at 60 min: 36.3±0.5 °C vs. 34.5±0.5 °C, P 
Source: Physiology and Behavior - Category: Physiology Source Type: research

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Publication date: Available online 21 September 2018Source: The Lancet Global HealthAuthor(s):
Source: The Lancet Global Health - Category: International Medicine & Public Health Source Type: research
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Source: SafetyLit - Category: International Medicine & Public Health Tags: Age: Adolescents Source Type: news
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Source: SafetyLit - Category: International Medicine & Public Health Tags: Age: Adolescents Source Type: news
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