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Related Experiment Videos

Long-term time estimation is influenced by circadian phase.

S S Campbell1, P J Murphy, C E Boothroyd

  • 1Laboratory of Human Chronobiology, Department of Psychiatry, Weill Medical College of Cornell University, White Plains, NY 10605, USA. sscampb@med.cornell.edu

Physiology & Behavior
|April 3, 2001
PubMed
Summary

Human time perception fluctuates with body temperature cycles. Our findings reveal a labile subjective clock, influenced by the circadian rhythm, affecting time estimation.

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Area of Science:

  • Chronobiology
  • Human Perception
  • Physiological Psychology

Background:

  • The adaptive significance of human time sense is poorly understood.
  • Factors influencing the ability to gauge time passage remain unclear.

Purpose of the Study:

  • To investigate how the subjective assessment of time varies with the time of day.
  • To explore the relationship between circadian rhythms and time perception.

Main Methods:

  • Participants' subjective estimation of long durations was recorded.
  • Time of day variations were analyzed in relation to body temperature cycles.

Main Results:

  • Subjective time assessment varied systematically with the time of day.

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  • The subjective clock ran faster during rising body temperature and slower during declining temperature.
  • On average, the subjective clock ran slower than physical time.

    • Conclusions:

    • Human time perception is influenced by endogenous circadian rhythms.
    • Body temperature oscillations play a role in modulating the subjective experience of time.
    • This study offers insights into the fundamental use of internal clocks for time gauging.