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Human time production under constant routine

T Nakajima1, M Uchiyama, T Enomoto

  • 1Department of Psychiatry, Teikyo University Mizonokuchi Hospital, Kawasaki, Japan.

Psychiatry and Clinical Neurosciences
|June 17, 1998
PubMed
Summary
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Human time perception fluctuates daily, influenced by the circadian process, not homeostatic process. This study observed morning peaks and afternoon troughs in time production under constant conditions.

Area of Science:

  • Chronobiology
  • Human Perception
  • Physiological Psychology

Background:

  • Human time production, the subjective experience of time, has been reported to fluctuate throughout the day.
  • The underlying mechanisms controlling these diurnal variations, whether circadian or homeostatic, remain unclear.

Purpose of the Study:

  • To investigate whether diurnal fluctuations in human time production are governed by the circadian process or the homeostatic process.
  • To examine time production under controlled constant routine conditions to isolate circadian influences.

Main Methods:

  • Participants underwent time production tests (10-second duration) under constant routine conditions.
  • Data were analyzed using Z-scores for each subject to identify temporal patterns.

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Main Results:

  • A consistent circadian pattern was observed in human time production.
  • Specifically, morning peaks and afternoon troughs were identified in the time production tests.

Conclusions:

  • The findings suggest that human time production is modulated by the circadian process.
  • Circadian rhythms play a significant role in the daily variations of subjective time perception.