Journal article
Integration of Touch and Sound in Auditory Cortex
Neuron (Cambridge, Mass.), Vol.48(2), pp.373-384
10/20/2005
DOI: 10.1016/j.neuron.2005.09.018
PMID: 16242415
Abstract
To form a coherent percept of the environment, our brain combines information from different senses. Such multisensory integration occurs in higher association cortices; but supposedly, it also occurs in early sensory areas. Confirming the latter hypothesis, we unequivocally demonstrate supra-additive integration of touch and sound stimulation at the second stage of the auditory cortex. Using high-resolution fMRI of the macaque monkey, we quantified the integration of auditory broad-band noise and tactile stimulation of hand and foot in anaesthetized animals. Integration was found posterior to and along the lateral side of the primary auditory cortex in the caudal auditory belt. Integration was stronger for temporally coincident stimuli and obeyed the principle of inverse effectiveness: greater enhancement for less effective stimuli. These findings demonstrates that multisensory integration occurs early and close to primary sensory areas and--because it occurs in anaesthetized animals--suggests that this integration is mediated by preattentive bottom-up mechanisms.
Details
- Title: Subtitle
- Integration of Touch and Sound in Auditory Cortex
- Creators
- Christoph Kayser - Max Planck Institute for Biological CyberneticsChristopher Petkov - Max Planck Institute for Biological CyberneticsMark Augath - Max Planck Institute for Biological CyberneticsNikos Logothetis - Max Planck Institute for Biological Cybernetics
- Resource Type
- Journal article
- Publication Details
- Neuron (Cambridge, Mass.), Vol.48(2), pp.373-384
- Publisher
- Elsevier Limited
- DOI
- 10.1016/j.neuron.2005.09.018
- PMID
- 16242415
- ISSN
- 0896-6273
- eISSN
- 1097-4199
- Language
- English
- Date published
- 10/20/2005
- Academic Unit
- Iowa Neuroscience Institute; Neurosurgery; Otolaryngology
- Record Identifier
- 9984360130802771
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