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Moments in time.

Marc Wittmann1

  • 1Department of Empirical and Analytical Psychophysics, Institute for Frontier Areas in Psychology and Mental Health Freiburg, Germany.

Frontiers in Integrative Neuroscience
|October 25, 2011
PubMed
Summary
This summary is machine-generated.

Perception and action occur in temporal epochs, creating a "psychological present." Distinct temporal processing levels, from milliseconds to seconds, are crucial for understanding subjective experience and consciousness.

Keywords:
psychophysicstemporal integrationthe presenttime perception

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Area of Science:

  • Cognitive Neuroscience
  • Philosophy of Mind
  • Psychophysics

Background:

  • Perception and action are theorized to unfold in temporal epochs, forming a unified
  • psychological present.
  • Understanding subjective experience requires distinguishing various temporal integration levels.
  • Current literature often conflates distinct temporal processing levels in consciousness studies.

Purpose of the Study:

  • To empirically investigate and differentiate distinct temporal processing levels.
  • To integrate psychophysical and neuropsychological findings with philosophical concepts of time experience.
  • To clarify the fundamental building blocks of temporal perception and subjective awareness.

Main Methods:

  • Review and synthesis of empirical evidence from psychophysics and neuropsychology.
  • Analysis of temporal integration across different time scales (milliseconds to seconds).
  • Philosophical conceptualization of time experience and consciousness.

Main Results:

  • Identification of a 'functional moment' (milliseconds) for simultaneity and succession perception.
  • Evidence for an 'experienced moment' (seconds) supporting conscious representation and 'nowness'.
  • Demonstration of working memory enabling continuity of experience and 'mental presence' (multiple seconds).

Conclusions:

  • Distinct temporal processing levels are fundamental to perception, action, and subjective experience.
  • These levels, from basic temporal units to working memory, underpin conscious awareness and the experience of time.
  • Empirical findings support a multi-layered model of temporal integration in consciousness.