English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Visual influences on information representations in auditory cortex

Kayser, C., Logothetis, N., & Panzeri, S. (2010). Visual influences on information representations in auditory cortex. Frontiers in Neuroscience, 2010(Conference Abstract: Computational and Systems Neuroscience 2010): T-12, 29.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-C150-B Version Permalink: http://hdl.handle.net/21.11116/0000-0002-AB66-B
Genre: Meeting Abstract

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Kayser, C1, 2, 3, Author              
Logothetis, NK2, 3, Author              
Panzeri, S, 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              

Content

show
hide
Free keywords: -
 Abstract: Combining information across different sensory modalities can greatly facilitate our ability to detect or recognize sensory stimuli. Recent work demonstrates that sensory integration is a distributed process, commencing in lower sensory areas and continuing in higher association cortices. Here we investigate the impact that visual stimuli have on the representation of sounds in auditory cortex. To this end we analyze neural responses to naturalistic audio-visual stimuli recorded while monkeys perform a visual fixation task. To characterize multisensory influences we quantify stimulus information provided by different putative neural codes. In particular, we have previously shown (Kayser et al. Neuron 09) that neural activity in auditory cortex is stimulus related on multiple temporal scales, including slow modulation of firing rates, millisecond precise temporal spike patterns and the relative timing of spiking activity to slow (<10Hz) ongoing network activity (phase-of-firing). In the context of multisensory stimuli, we find (Kayser et al. Curr Biol. In Press) that visual stimulation renders spiking responses more reliable across trials (repeats of the same stimulus), and more reliable in time (temporal precision of spikes). This increased reliability enhances the stimulus information provided by neural activity on slow (firing rate) and fast (spike patterns) time scales. As shown by feature extraction, this information gain pertains mostly to temporal sound properties, such as sound envelope, and is much reduced when incongruent visual and auditory stimuli are presented. Overall, these results demonstrate that multisensory influences enhance sensory representations already at early stages in cortex, and do so by enhancing the reliability of stimulus representations on multiple time scales.

Details

show
hide
Language(s):
 Dates: 2010-02
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.3389/conf.fnins.2010.03.00021
BibTex Citekey: KayserLP2010
 Degree: -

Event

show
hide
Title: 7th Computational and Systems Neuroscience Meeting (COSYNE 2010)
Place of Event: Salt Lake City, UT, USA
Start-/End Date: 2010-02-25 - 2010-02-28

Legal Case

show

Project information

show

Source 1

show
hide
Title: Frontiers in Neuroscience
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Lausanne, Switzerland : Frontiers Research Foundation
Pages: - Volume / Issue: 2010 (Conference Abstract: Computational and Systems Neuroscience 2010) Sequence Number: T-12 Start / End Page: 29 Identifier: ISSN: 1662-4548
ISSN: 1662-453X
CoNE: https://pure.mpg.de/cone/journals/resource/1662-4548

Source 2

show
hide
Title: 7th Computational and Systems Neuroscience Meeting (COSYNE 2010)
Source Genre: Proceedings
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: - Sequence Number: T-12 Start / End Page: 29 Identifier: -