Motion-induced blindness and microsaccades: cause and effect.

Yoram S. Bonneh, Tobias H. Donner, Dov Sagi, Moshe Fried, Alexander Cooperman, David J. Heeger, Amos Arieli

Research output: Contribution to journalArticle

Abstract

It has been suggested that subjective disappearance of visual stimuli results from a spontaneous reduction of microsaccade rate causing image stabilization, enhanced adaptation, and a consequent fading. In motion-induced blindness (MIB), salient visual targets disappear intermittently when surrounded by a moving pattern. We investigated whether changes in microsaccade rate can account for MIB. We first determined that the moving mask does not affect microsaccade metrics (rate, magnitude, and temporal distribution). We then compared the dynamics of microsaccades during reported illusory disappearance (MIB) and physical disappearance (Replay) of a salient peripheral target. We found large modulations of microsaccade rate following perceptual transitions, whether illusory (MIB) or real (Replay). For MIB, the rate also decreased prior to disappearance and increased prior to reappearance. Importantly, MIB persisted in the presence of microsaccades although sustained microsaccade rate was lower during invisible than visible periods. These results suggest that the microsaccade system reacts to changes in visibility, but microsaccades also modulate MIB. The latter modulation is well described by a Poisson model of the perceptual transitions assuming that the probability for reappearance and disappearance is modulated following a microsaccade. Our results show that microsaccades counteract disappearance but are neither necessary nor sufficient to account for MIB.

Original languageEnglish (US)
Number of pages1
JournalJournal of vision
Volume10
Issue number14
DOIs
StatePublished - 2010

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ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems

Cite this

Bonneh, Y. S., Donner, T. H., Sagi, D., Fried, M., Cooperman, A., Heeger, D. J., & Arieli, A. (2010). Motion-induced blindness and microsaccades: cause and effect. Journal of vision, 10(14). https://doi.org/10.1167/10.14.22