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Related Concept Videos

Thermosensation01:43

Thermosensation

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Peripheral thermosensation is the perception of external temperature. A change in temperature (on the surface of the skin and other tissues) is detected by a family of temperature-sensitive ion channels called Transient Receptor Potential, or TRP, receptors. These receptors are located on free nerve endings. Those detecting cold temperatures are closer to the surface of the skin than the nerve endings detecting warmth. These thermoTRP channels, while temperature selective, have relatively...
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Body Temperature01:25

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The body's temperature, measured in degrees, is determined by the balance between heat production and dissipation to the surrounding environment. For instance, if exercising vigorously, the body will produce more heat, causing sweat and dissipating that heat. Despite extreme environmental conditions and physical exertion, the human temperature-control system maintains a constant core body temperature (the temperature of deep tissues, which are the tissues located beneath the skin and other...
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Body Temperature01:07

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Body temperature reflects the equilibrium between heat production and heat loss within the body. Most heat is generated by metabolically active tissues, particularly the liver, heart, brain, kidneys, and endocrine organs. At rest, skeletal muscles contribute 20–30% of total heat production, but during vigorous exercise, this can increase up to 30–40 times.
The average body temperature is approximately 37°C (98.6°F) and typically ranges from 36.1–37.2°C...
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Thermoregulation01:26

Thermoregulation

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The human body has a sophisticated thermoregulation system that employs negative feedback mechanisms to maintain an optimal core temperature. When the core temperature drops, peripheral and central thermoreceptors send signals to the hypothalamus, activating the heat-promoting center. This center triggers several responses aimed at increasing the core temperature. First, vasoconstriction reduces the flow of warm blood from internal organs to the skin so that the heat is not lost from the skin,...
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Assessing Body Temperature - Oral01:14

Assessing Body Temperature - Oral

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Here are the steps to accurately measure oral temperature using an electronic thermometer:
Step 1:
Start by practicing proper hand hygiene to prevent the spread of microorganisms.
Step 2:
Take the thermometer out of the charging unit, switch it on, and wait for the ready sign.
Step 3:
Gently slide the probe cover until a click is heard. This simple action prevents cross-contamination and ensures the correct placement of the probe cover.
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Equipments Used to Measure Body Temperature01:13

Equipments Used to Measure Body Temperature

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Body temperature can be assessed using various devices and measured in Celsius or Fahrenheit.
Glass-bulb Thermometer:
Glass-bulb thermometers are hollow glass tubes with a bulb tip containing liquid such as ethanol or mercury. Historically, glass bulb mercury thermometers were the standard device to measure body temperature. Today, mercury thermometers are prohibited in many countries due to the hazardous effects of mercury and the risk of exposure if the glass bulb breaks. In general,...
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Related Experiment Video

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A Simple and Inexpensive Method for Determining Cold Sensitivity and Adaptation in Mice
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The experienced temperature sensitivity and regulation survey.

Eus J W Van Someren1, Kim Dekker2, Bart H W Te Lindert2

  • 1Department of Sleep and Cognition, Netherlands Institute for Neuroscience, an institute of the Royal Netherlands Academy of Arts and Sciences, Amsterdam, The Netherlands; Departments of Integrative Neurophysiology and Medical Psychology, Center for Neurogenomics and Cognitive Research, Neuroscience Campus Amsterdam, VU University and Medical Center, Amsterdam, the Netherlands.

Temperature (Austin, Tex.)
|May 27, 2016
PubMed
Summary

This study developed a new survey to measure individual differences in thermal comfort and thermoregulation. The survey effectively captures trait-like variations in how people experience and manage temperature.

Keywords:
agingindividual differencesinsomniasex differencessurveytemperaturethermoregulationthermosensitivity

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Area of Science:

  • Human physiology
  • Psychometrics
  • Thermoregulation

Background:

  • Individual differences in thermosensitivity, thermoregulation, and thermal comfort are significant.
  • Existing scales lack comprehensive assessment of subjective thermoregulatory activity.
  • Understanding these differences is crucial for human thermophysiology.

Purpose of the Study:

  • To develop and validate a comprehensive survey for assessing trait-like individual differences in subjective thermoregulatory activity.
  • To identify key dimensions of thermal experience and sensitivity.
  • To evaluate the survey's ability to detect group differences.

Main Methods:

  • A survey with 102 questions on thermal experiences and 32 on body location-specific sensations was administered to 240 volunteers.
  • Principal component analysis (PCA) was used to identify underlying dimensions.
  • The survey's sensitivity was tested using a case-control design with individuals experiencing insomnia.

Main Results:

  • PCA extracted 21 meaningful dimensions of thermal experience and regulation.
  • These dimensions showed significant sex and age-related differences.
  • The survey demonstrated marked mean differences between individuals with and without probable insomnia, indicating discriminatory value.

Conclusions:

  • The developed survey provides a comprehensive tool for assessing individual differences in thermoregulation and thermal sensitivity.
  • The identified dimensions offer insights into subjective thermophysiology.
  • This validated survey can be freely used to study variations in thermosensitivity and thermoregulation.