English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Multisensory influences in auditory and superior temporal cortex

Kayser, C., Dahl, C., Panzeri, S., & Logothetis, N. (2009). Multisensory influences in auditory and superior temporal cortex. Poster presented at 10th International Multisensory Research Forum (IMRF 2009), New York, NY, USA.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-C419-2 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-1368-3
Genre: Poster

Files

show Files

Creators

show
hide
 Creators:
Kayser, C1, 2, 3, Author              
Dahl, C2, 3, 4, Author              
Panzeri, S3, 4, Author              
Logothetis, NK2, 3, Author              
Affiliations:
1Research Group Physiology of Sensory Integration, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497808              
2Department Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497798              
3Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              
4Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497797              

Content

show
hide
Free keywords: -
 Abstract: Recent results from human imaging and electrophysiology demonstrate that the processing of acoustic information can be influenced by stimulation of other sensory modalities already at early stages in auditory cortex. Here we scrutinize the neuronal basis of these multisensory influences at different stages along the auditory processing streams. To this end we record neuronal responses in different regions of auditory cortex and in the upper bank of the superior temporal sulcus (STS) during stimulation with naturalistic audio-visual stimuli. In caudal primary or secondary auditory fields only few neurons revealed significant visual influences. However in regions beyond the classical auditory cortex, their fraction increased considerably, and in association regions such as the upper bank STS both bimodal neurons and neurons with significant multisensory interactions were common. In fact, our results demonstrate a spatial topographical layout of modality preferences in the STS, which might provide a neural basis of sensory integration in this region. To characterize the effect of multisensory inputs at each of these processing stages we investigate the importance of stimulus congruency on multisensory interactions. In addition, to distinguish basic response modulation from sensory integration we use methods of information theory to determine whether visual input actually enhances the information encoded by neuronal responses about the stimulus. Altogether, our results provide first insights into how the impact of multisensory influences increases along a sensory processing pathway and start to shed light on where and how the neural representation of the sensory environment benefits from multisensory inputs.

Details

show
hide
Language(s):
 Dates: 2009-07
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: BibTex Citekey: 5886
 Degree: -

Event

show
hide
Title: 10th International Multisensory Research Forum (IMRF 2009)
Place of Event: New York, NY, USA
Start-/End Date: 2009-06-29 - 2009-07-02

Legal Case

show

Project information

show

Source 1

show
hide
Title: 10th International Multisensory Research Forum (IMRF 2009)
Source Genre: Proceedings
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: - Sequence Number: 814 Start / End Page: - Identifier: -