Audio-visual multisensory integration in superior parietal lobule revealed by human intracranial recordings. Academic Article uri icon

Overview

abstract

  • Intracranial recordings from three human subjects provide the first direct electrophysiological evidence for audio-visual multisensory processing in the human superior parietal lobule (SPL). Auditory and visual sensory inputs project to the same highly localized region of the parietal cortex with auditory inputs arriving considerably earlier (30 ms) than visual inputs (75 ms). Multisensory integration processes in this region were assessed by comparing the response to simultaneous audio-visual stimulation with the algebraic sum of responses to the constituent auditory and visual unisensory stimulus conditions. Significant integration effects were seen with almost identical morphology across the three subjects, beginning between 120 and 160 ms. These results are discussed in the context of the role of SPL in supramodal spatial attention and sensory-motor transformations.

publication date

  • May 10, 2006

Research

keywords

  • Auditory Perception
  • Electroencephalography
  • Parietal Lobe
  • Visual Perception

Identity

Scopus Document Identifier

  • 33746646378

Digital Object Identifier (DOI)

  • 10.1152/jn.00285.2006

PubMed ID

  • 16687619

Additional Document Info

volume

  • 96

issue

  • 2