Interoceptive awareness selectively predicts timing accuracy in irregular contexts.

Area of Science:

• Cognitive Neuroscience
• Psychophysiology
• Time Perception Research

Background:

• The role of psychophysiological changes in duration perception is debated.
• Existing evidence on interoceptive awareness influencing timing is inconsistent.
• Task-specific factors influencing reliance on bodily cues for time tracking remain unclear.

Purpose of the Study:

• To investigate if interoceptive awareness selectively impacts timing accuracy.
• To test the hypothesis that this effect is prominent when temporal context lacks reliable cues.
• To differentiate the influence of visceral versus somatosensory awareness on timing.

Main Methods:

• Developed a novel interval reproduction paradigm with regular and irregular stimulus spacing.
• Assessed interoceptive awareness using the 'Self-Awareness Questionnaire' for bodily sensations.
• Correlated interoceptive awareness scores with timing accuracy in both experimental conditions.

Main Results:

• Interoceptive awareness significantly predicted timing accuracy in the irregular stimulus condition.
• No significant prediction of timing accuracy by interoceptive awareness was found in the regular condition.
• Awareness of visceral sensations, not somatosensory sensations, specifically drove the timing effect.

Conclusions:

• Individual differences in interoception differentially affect timing based on contextual reliability.
• Interoceptive awareness is crucial for timing when external temporal cues are absent or unreliable.
• Findings support distinct timing mechanisms operating under different contextual demands.