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Walkable distances are bioenergetically scaled.

Jonathan R Zadra1, Arthur L Weltman1, Dennis R Proffitt1

  • 1Department of Psychology, University of Virginia.

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Summary
This summary is machine-generated.

Human perception of walkable distances is influenced by bioenergetic resources. Physical fitness and energy availability significantly impact how individuals estimate distances, suggesting a bioenergetic scaling mechanism for spatial perception.

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Area of Science:

  • Cognitive psychology
  • Human physiology
  • Spatial perception

Background:

  • Visual information is transformed from angular to linear units for spatial layout perception.
  • Perceptual rulers, crucial for this transformation, are suggested to originate from the observer's body.
  • A proposed model suggests distance perception scales to available and required bioenergetic resources for traversal.

Purpose of the Study:

  • To rigorously test the hypothesis that walkable distances are scaled to bioenergetic resources.
  • To investigate the role of physical fitness and energy availability in distance estimation.

Main Methods:

  • Participants underwent exercise physiology assessments, including physiological measures.
  • Exercise sessions were conducted twice: once with a carbohydrate supplement and once with a placebo.
  • Distance estimates were recorded before and after exercise in both conditions.

Main Results:

  • Carbohydrate supplementation led to decreased distance estimates compared to the placebo.
  • Individual differences in physiological measures related to physical fitness predicted distance estimates.
  • These predictions held true both before and after the experimental manipulations.

Conclusions:

  • The findings support the proposal that walkable distances are bioenergetically scaled.
  • Physical fitness and physiological state are significant predictors of perceived walkable distances.
  • This study provides evidence for a bioenergetic basis in spatial perception of extent.