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Jim Maarseveen1, Chris L E Paffen1, Frans A J Verstraten1,2

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Duration-tuned channels adapt to the objective time between an event's onset and offset, not its perceived duration. This suggests these channels encode physical timing, not subjective experience, impacting models of time perception.

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Area of Science:

  • Psychology
  • Neuroscience
  • Sensory Perception

Background:

  • Duration-tuned channels are implicated in encoding event timing.
  • Previous research suggests perceived duration can differ from objective onset-offset intervals.
  • This raises questions about what temporal information these channels actually process.

Purpose of the Study:

  • To investigate whether duration-tuned channels encode objective onset-offset duration or perceived event duration.
  • To differentiate between physical timing and subjective experience in duration encoding.

Main Methods:

  • Utilized a duration illusion to decouple objective and perceived durations.
  • Exposed participants to illusion-inducing stimuli to test for adaptation effects.
  • Measured adaptation to either onset-offset duration or perceived duration.

Main Results:

  • Found clear evidence of adaptation to the onset-offset duration of stimuli.
  • Demonstrated that adaptation occurred to the physical time, not the subjectively perceived time.
  • Indicated that duration-tuned mechanisms are sensitive to objective temporal intervals.

Conclusions:

  • Duration-tuned channels appear to encode the physical time between event onset and offset.
  • These channels do not necessarily reflect the perceived duration of an event.
  • Findings have implications for understanding duration illusions and the duration channel model.