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Related Concept Videos

Color Vision01:24

Color Vision

Color perception begins in the retina, the light-sensitive layer at the back of the eye. Two main theories explain how colors are seen: the trichromatic theory and the opponent-process theory. The trichromatic theory, proposed by Thomas Young in 1802 and extended by Hermann von Helmholtz in 1852, suggests that color vision is based on three types of cone receptors in the retina. These cones are sensitive to different but overlapping ranges of wavelengths corresponding to red, blue, and green.

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Related Experiment Video

Updated: Jun 5, 2026

Eye Movements in Visual Duration Perception: Disentangling Stimulus from Time in Predecisional Processes
09:27

Eye Movements in Visual Duration Perception: Disentangling Stimulus from Time in Predecisional Processes

Published on: January 19, 2024

Exogenous visual attention prolongs perceived duration.

Tanja Seifried1, Rolf Ulrich

  • 1Psychologisches Institut, Universität Tübingen, Friedrichstrasse 21, Tübingen, Germany. tanja.seifried@uni-tuebingen.de

Attention, Perception & Psychophysics
|January 25, 2011
PubMed
Summary
This summary is machine-generated.

Spatial attention generally prolongs perceived visual stimulus duration. This study confirmed this effect across multiple experiments, reinforcing its broad applicability in visual perception research.

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Related Experiment Videos

Last Updated: Jun 5, 2026

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Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity

Published on: March 18, 2019

Area of Science:

  • Cognitive Psychology
  • Visual Perception
  • Neuroscience

Background:

  • Spatial attention is known to influence temporal perception.
  • Previous research reported conflicting findings regarding attention's effect on perceived duration.

Purpose of the Study:

  • To systematically investigate the influence of spatial attention on perceived visual stimulus duration.
  • To reconcile conflicting findings in the existing literature.

Main Methods:

  • Five experiments were conducted using cued visual stimuli.
  • Perceived duration was measured under conditions of valid, invalid, and neutral spatial cues.

Main Results:

  • Valid spatial cues consistently led to prolonged perceived duration.
  • One experiment found conditions where neither the attention effect nor the reversed pattern emerged.

Conclusions:

  • The findings reinforce the generality of spatial attention prolonging perceived duration.
  • Further research is needed to identify factors modulating this attention effect.