Subjective time dilation as a result of entropy

Area of Science:

• Cognitive psychology
• Neuroscience
• Information theory

Background:

• Subjective time dilation is observed in the oddball paradigm, where expanding stimuli prolong perceived time more than shrinking stimuli.
• This effect is often attributed to an evolved threat-detection response, as visual expansion mimics approaching dangers.

Purpose of the Study:

• To investigate if manipulating stimulus size can induce time dilation with both expanding and shrinking visual stimuli.
• To propose an alternative explanation for subjective time perception based on information theory and stimulus uncertainty.

Main Methods:

• Utilized an oddball paradigm with manipulated visual stimuli (expanding and shrinking).
• Measured subjective temporal perception in response to static, expanding, and shrinking stimuli.
• Applied information theory concepts, specifically entropy, to analyze stimulus properties.

Main Results:

• Both expanding and shrinking stimuli, when relative sizes were manipulated, induced a prolongation of subjective time.
• Demonstrated that stimulus size manipulation overrides the typical expansion-only effect.
• Found a correlation between stimulus uncertainty (entropy) and subjective temporal perception.

Conclusions:

• Subjective time perception is not solely explained by threat response but can be influenced by stimulus information uncertainty.
• Information theory provides a framework for understanding temporal perception, linking it to entropy.
• The logistic function serves as a model for how information processing operates within temporal perception.