Effects of physical effort on temporal processing.

Area of Science:

• Cognitive Psychology
• Psychophysics
• Human Performance

Background:

• Temporal processing and physical effort interact significantly in daily activities.
• Understanding this interaction is key to explaining time perception under physical exertion.

Purpose of the Study:

• To investigate the impact of isometric handgrip (physical effort) on temporal processing.
• To differentiate between arousal and competition hypotheses regarding effort's effect on time perception.

Main Methods:

• Concurrent tasks involving isometric handgrip with time reproduction (sensory timing) and time production (motor timing).
• Experiments manipulated physical effort levels and timing cues to isolate effects.
• Data collected between 2023-2024.

Main Results:

• High physical effort increased estimated durations in sensory timing tasks (time reproduction).
• High physical effort decreased estimated durations in motor timing tasks (time production).
• Effects were modulated by timing cues and the simultaneous presence of sensory and motor timing demands.

Conclusions:

• Physical effort, particularly through arousal, significantly distorts perceived time.
• Findings support the arousal hypothesis, suggesting effort accelerates temporal processing.
• The interplay between sensory and motor timing under effort is complex and context-dependent.