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Related Experiment Videos

Caloric primary rewards systematically alter time perception.

Bowen J Fung1, Carsten Murawski2, Stefan Bode1

  • 1Melbourne School of Psychological Sciences, The University of Melbourne.

Journal of Experimental Psychology. Human Perception and Performance
|April 14, 2017
PubMed
Summary
This summary is machine-generated.

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Consuming caloric rewards, like fruit juice, alters human time perception, making time seem longer. This effect is linked to primary rewards and may help regulate body balance.

Area of Science:

  • Cognitive Neuroscience
  • Psychophysics
  • Behavioral Economics

Background:

  • Time perception is crucial for behavior.
  • Reward influences cognitive processes, including time estimation.
  • The specific impact of primary caloric rewards on time perception remains unclear.

Purpose of the Study:

  • To investigate how primary caloric rewards affect human time perception.
  • To differentiate the effects of reward anticipation versus consumption.
  • To explore the role of reward characteristics (caloric, non-caloric, primary, secondary) on time estimation.

Main Methods:

  • A novel experimental paradigm was used to measure time estimations.
  • Participants estimated time intervals during anticipation and after consumption of fruit juice (primary reward).

Related Experiment Videos

  • Further experiments tested secondary rewards (money), non-caloric rewards (water, aspartame), and caloric rewards (maltodextrin).

    • Main Results:

    • Reward consumption, not anticipation, significantly altered time estimations.
    • Consumption of primary caloric rewards led to overproduction of time, increasing with reward magnitude.
    • The effect was specific to caloric rewards, not extending to money, water, or aspartame, but observed with maltodextrin.

    Conclusions:

    • Consumption of caloric primary rewards alters time perception, causing overestimation.
    • This phenomenon may represent a psychophysiological mechanism for homeostatic balance regulation.
    • The findings highlight the distinct role of caloric content in reward-driven temporal distortions.