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Characterization of Thermal Transport in One-dimensional Solid Materials

Characterization of Thermal Transport in One-dimensional Solid Materials

Published on: January 26, 2014

SOME TEMPERATURE CHARACTERISTICS IN MAN.

H Hoagland¹, C T Perkins

¹Physiological Laboratory, Clark University, and The Worcester State Hospital, Worcester.

The Journal of General Physiology

|October 30, 2009

Summary

This summary is machine-generated.

The human heart beat

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Area of Science:

Physiology
Chronobiology
Biophysics

Background:

Temperature influences physiological processes.
Accurate time perception is crucial for various cognitive functions.
Previous research linked temperature to time judgment but not explicitly to cardiac rhythm.

Purpose of the Study:

To investigate the relationship between temperature and human heart rate.
To compare the thermal dependence of heart rate with that of time perception.
To elucidate the underlying mechanisms controlling short time interval estimation.

Main Methods:

Measured human heart rate across a temperature range of approximately 4.7 degrees C.
Compared the obtained thermal coefficient for heart rate with existing data for time judgments.
Analyzed evidence to determine the control mechanism for short time interval estimation.

Main Results:

A thermal coefficient (micro) of 29,400 was determined for the human heart beat.
This value differs significantly from the 24,000 calories reported for temperature's effect on short duration judgments.
Findings suggest distinct thermal dependencies for cardiac rhythm and time perception.

Conclusions:

Human heart rate exhibits a specific thermal dependence.
The mechanism controlling short time interval estimation appears to be a chemical reaction.
This chemical master reaction is independent of the pulse rhythm, suggesting separate biological oscillators.