Integration of haptics and vision in human multisensory grasping

Ivan Camponogara, Robert Volcic

Research output: Contribution to journalArticlepeer-review

Abstract

Grasping actions are directed not only toward objects we see but also toward objects we both see and touch (multisensory grasping). In this latter case, the integration of visual and haptic inputs improves movement performance compared to each sense alone. This performance advantage could be due to the integration of all the redundant positional and size cues or to the integration of only a subset of these cues. Here we selectively provided specific cues to tease apart how these different sensory sources contribute to visuo-haptic multisensory grasping. We demonstrate that the availability of the haptic positional cue together with the visual cues is sufficient to achieve the same grasping performance as when all cues are available. These findings provide strong evidence that the human sensorimotor system relies on non-visual sensory inputs and open new perspectives on their role in supporting vision during both development and adulthood.

Original languageEnglish (US)
Pages (from-to)173-185
Number of pages13
JournalCortex
Volume135
DOIs
StatePublished - Feb 2021

Keywords

  • Grasping
  • Haptics
  • Multisensory integration
  • Proprioception
  • Touch
  • Vision

ASJC Scopus subject areas

  • Neuropsychology and Physiological Psychology
  • Experimental and Cognitive Psychology
  • Cognitive Neuroscience

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