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Related Concept Videos

Factors Affecting Perception01:25

Factors Affecting Perception

Perception is influenced by perceptual set, context, motivation, and emotion. Perceptual set, or perceptual expectancy, refers to the tendency to perceive things in a particular way, influenced by previous experiences and expectations. This phenomenon affects the interpretation of stimuli, creating a set of mental tendencies and assumptions that impact sensory perceptions of sound, taste, touch, and sight.
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Related Experiment Video

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A Two-interval Forced-choice Task for Multisensory Comparisons
07:13

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Published on: November 9, 2018

Asymmetric cross-modal effects in time perception.

Kuan-Ming Chen1, Su-Ling Yeh

  • 1Department of Psychology, National Taiwan University, No. 1, Roosevelt Rd. Sec. 4, Taipei 10617, Taiwan.

Acta Psychologica
|February 7, 2009
PubMed
Summary
This summary is machine-generated.

Sound can alter our perception of time. This study found that auditory stimuli extend perceived visual duration, but visual stimuli do not affect auditory duration perception, supporting auditory dominance.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Auditory and Visual Perception

Background:

  • Judging event duration is common, but cross-modal influences on temporal judgment are debated.
  • Previous research suggests potential interactions between sensory modalities in time perception.

Purpose of the Study:

  • To investigate the impact of auditory stimuli on visual duration judgment.
  • To examine the influence of visual stimuli on auditory duration judgment.
  • To test the auditory dominance hypothesis in cross-modal time perception.

Main Methods:

  • An oddball paradigm was employed to compare perceived durations across modalities.
  • Participants judged the duration of visual and auditory stimuli presented as standards and oddballs.
  • Scalar Expectancy Theory mechanisms were explored using varying standard durations.

Main Results:

  • Asymmetric cross-modal effects were observed, supporting auditory dominance.
  • Auditory stimuli significantly extended the perceived duration of visual events.
  • Visual stimuli did not alter the perceived duration of auditory events.

Conclusions:

  • Findings support the auditory dominance hypothesis in cross-modal time perception.
  • Sound perception appears to dominate, influencing visual duration judgments.
  • The effect is attributed to sound accelerating the internal visual pacemaker, as per Scalar Expectancy Theory.