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Updated: May 9, 2026

Applying Incongruent Visual-Tactile Stimuli during Object Transfer with Vibro-Tactile Feedback
Published on: May 23, 2019
Complexity of visual stimuli affects visual illusion induced by sound
Yasuhiro Takeshima1, Jiro Gyoba
1Department of Psychology, Graduate School of Arts & Letters, Tohoku University, Kawauchi 27-1, Aoba-ku, Sendai 980-8576, Japan.
The fission illusion, caused by audio-visual integration, is less likely with complex visual patterns. Perceptual efficiency influences this illusion by affecting how stimuli are processed and integrated over time.
Area of Science:
- Psychology
- Neuroscience
- Cognitive Science
Background:
- The fission illusion is a perceptual phenomenon arising from multisensory audio-visual integration.
- This illusion occurs within a narrow temporal window, highlighting the importance of timing in sensory processing.
Purpose of the Study:
- To investigate the impact of perceptual efficiency on the fission illusion.
- To determine how visual pattern complexity influences the induction of the fission illusion.
Main Methods:
- Visual patterns of varying complexity were presented to participants.
- The stimulus onset asynchrony between visual and auditory stimuli was manipulated.
- Participants' perception of the fission illusion was recorded under different conditions.
Main Results:
- Increased visual pattern complexity made the fission illusion more difficult to induce.
- The influence of visual patterns on the illusion varied with stimulus onset asynchrony.
- The fission illusion was more probable when the visual stimulus processing was complete before auditory stimulus presentation.
Conclusions:
- Perceptual efficiency significantly affects the occurrence of the fission illusion.
- Audio-visual integration is modulated by the perceptual processing efficiency of individual stimuli.
- The complexity of visual stimuli plays a crucial role in the temporal dynamics of multisensory integration.
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