Audio-visual integration and saccadic inhibition

Elena Makovac, Antimo Buonocore, Robert D. McIntosh

Research output: Contribution to journalArticlepeer-review

Abstract

Saccades operate a continuous selection between competing targets at different locations. This competition has been mostly investigated in the visual context, and it is well known that a visual distractor can interfere with a saccade toward a visual target. Here, we investigated whether multimodal, audio-visual targets confer stronger resilience against visual distraction. Saccades to audio-visual targets had shorter latencies than saccades to unisensory stimuli. This facilitation exceeded the level that could be explained by simple probability summation, indicating that multisensory integration had occurred. The magnitude of inhibition induced by a visual distractor was comparable for saccades to unisensory and multisensory targets, but the duration of the inhibition was shorter for multimodal targets. We conclude that multisensory integration can allow a saccade plan to be reestablished more rapidly following saccadic inhibition.

Original languageEnglish
Pages (from-to)1295-1305
Number of pages11
JournalQuarterly Journal of Experimental Psychology
Volume68
Issue number7
DOIs
Publication statusPublished - Jul 3 2015

Keywords

  • Multisensory integration
  • Race model analysis
  • Saccadic inhibition
  • Visual distractors

ASJC Scopus subject areas

  • Physiology
  • Physiology (medical)
  • Psychology(all)
  • Experimental and Cognitive Psychology
  • Neuropsychology and Physiological Psychology

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