Cortical organisation of environmental sounds by attribute

Hocking, Julia, McMahon, Katie L. and de Zubicaray, Greig I. (2011) Cortical organisation of environmental sounds by attribute. Human Brain Mapping, 32 5: 688-698. doi:10.1002/hbm.21040


Author Hocking, Julia
McMahon, Katie L.
de Zubicaray, Greig I.
Title Cortical organisation of environmental sounds by attribute
Journal name Human Brain Mapping   Check publisher's open access policy
ISSN 1065-9471
1097-0193
Publication date 2011-05
Sub-type Article (original research)
DOI 10.1002/hbm.21040
Volume 32
Issue 5
Start page 688
End page 698
Total pages 11
Place of publication Hoboken, NJ, United States
Publisher John Wiley & Sons
Collection year 2012
Language eng
Abstract Semantic knowledge is supported by a widely distributed neuronal network, with differential patterns of activation depending upon experimental stimulus or task demands. Despite a wide body of knowledge on semantic object processing from the visual modality, the response of this semantic network to environmental sounds remains relatively unknown. Here, we used fMRI to investigate how access to different conceptual attributes from environmental sound input modulates this semantic network. Using a range of living and manmade sounds, we scanned participants whilst they carried out an object attribute verification task. Specifically, we tested visual perceptual, encyclopedic, and categorical attributes about living and manmade objects relative to a high-level auditory perceptual baseline to investigate the differential patterns of response to these contrasting types of object-related attributes, whilst keeping stimulus input constant across conditions. Within the bilateral distributed network engaged for processing environmental sounds across all conditions, we report here a highly significant dissociation within the left hemisphere between the processing of visual perceptual and encyclopedic attributes of objects. © 2011 Wiley-Liss, Inc.
Keyword fMRI
Auditory
Object
Semantic
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2012 Collection
School of Psychology Publications
Centre for Advanced Imaging Publications
 
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Created: Mon, 16 May 2011, 15:09:22 EST by Sandrine Ducrot on behalf of Centre for Advanced Imaging