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Hypnotizability and Time Reproduction.

Žan Zelič1,2, Valentina Puccini3, Enrica L Santarcangelo3

  • 1Department of Physics, University of Trento, Trento, Italy. zan.zelic@unitn.it.

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Summary
This summary is machine-generated.

Higher hypnotizability enhances time perception accuracy for longer intervals, suggesting better brain network coupling. This psychophysiological trait impacts how individuals perceive time across different durations.

Keywords:
CerebellumHypnosisInsular cortexTime perception

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Area of Science:

  • Psychology
  • Neuroscience
  • Chronobiology

Background:

  • Hypnotizability is a trait linked to brain structure variations in areas crucial for time perception, like the cerebellum and insula.
  • Previous research suggests a connection between hypnotizability and altered time perception, but the precise relationship across different durations requires further investigation.

Purpose of the Study:

  • To investigate how hypnotizability influences time reproduction accuracy across various interval durations (1, 3, 6, and 8 seconds).
  • To explore the neural underpinnings of time perception differences in individuals with varying hypnotizability levels.

Main Methods:

  • Forty healthy participants completed the Stanford Hypnotic Susceptibility Scale: Form A.
  • A time reproduction task with visually presented intervals was administered.
  • Mixed-effects models analyzed proportional errors (RE and AE) with hypnotizability and interval duration as key variables, controlling for covariates like heart rate, sex, and anxiety.

Main Results:

  • Relative error (RE) showed overestimation of shorter intervals and underestimation of longer intervals, a main effect of duration.
  • Absolute error (AE) revealed a significant interaction: higher hypnotizability correlated with a greater reduction in error as interval duration increased.
  • This suggests improved time perception precision with longer intervals in highly hypnotizable individuals.

Conclusions:

  • Higher hypnotizability is associated with enhanced time perception accuracy, particularly for longer durations, potentially due to improved functional coupling in brain networks.
  • The findings suggest that differences in time perception related to hypnotizability may involve cerebellar mechanisms and are linked to altered self-awareness experiences like agency and body ownership.