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Where sound position influences sound object representations: a 7-T fMRI study.

To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.neuroimage.2010.10.032 Byline: Wietske van der Zwaag, Giovanni Gentile, Rolf Gruetter, Lucas Spierer, Stephanie Clarke Keywords: Sound localisation; Non-primary auditory cortex; fMRI; Ultra-high field Abbrevia... Full description

Journal Title: NeuroImage February 1, 2011, Vol.54(3), pp.1803-1811
Main Author: van Der Zwaag, Wietske
Other Authors: Gentile, Giovanni , Gruetter, Rolf , Spierer, Lucas , Clarke, Stephanie
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: E-ISSN: 1095-9572 ; DOI: 10.1016/j.neuroimage.2010.10.032
Link: http://search.proquest.com/docview/820792361/?pq-origsite=primo
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title: Where sound position influences sound object representations: a 7-T fMRI study.
format: Article
creator:
  • van Der Zwaag, Wietske
  • Gentile, Giovanni
  • Gruetter, Rolf
  • Spierer, Lucas
  • Clarke, Stephanie
subjects:
  • Acoustic Stimulation–Methods
  • Auditory Cortex–Anatomy & Histology
  • Auditory Perception–Physiology
  • Brain Mapping–Physiology
  • Data Interpretation, Statistical–Physiology
  • Electromagnetic Fields–Blood
  • Female–Physiology
  • Functional Laterality–Physiology
  • Humans–Physiology
  • Image Processing, Computer-Assisted–Physiology
  • Magnetic Resonance Imaging–Physiology
  • Male–Physiology
  • Oxygen–Physiology
  • Sound Localization–Physiology
  • Space Perception–Physiology
  • Young Adult–Physiology
  • Oxygen
ispartof: NeuroImage, February 1, 2011, Vol.54(3), pp.1803-1811
description: To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.neuroimage.2010.10.032 Byline: Wietske van der Zwaag, Giovanni Gentile, Rolf Gruetter, Lucas Spierer, Stephanie Clarke Keywords: Sound localisation; Non-primary auditory cortex; fMRI; Ultra-high field Abbreviations: AA, Anterior auditory area; A1, Primary auditory area; ALA, Anterolateral auditory area; BOLD, Blood Oxygenation Level Dependent; LA, Lateral auditory area; MA, Medial auditory area; MRI, Magnetic Resonance Imaging; MSP, Modulated by Sound Position; nMSP, non-Modulated by Sound Position; PA, Posterior auditory area; ROI, Region of Interest; SPM, Statistical Parametric Map; STA, Superior temporal auditory area Abstract: Evidence from human and non-human primate studies supports a dual-pathway model of audition, with partially segregated cortical networks for sound recognition and sound localisation, referred to as the What and Where processing streams. In normal subjects, these two networks overlap partially on the supra-temporal plane, suggesting that some early-stage auditory areas are involved in processing of either auditory feature alone or of both. Using high-resolution 7-T fMRI we have investigated the influence of positional information on sound object representations by comparing activation patterns to environmental sounds lateralised to the right or left ear. While unilaterally presented sounds induced bilateral activation, small clusters in specific non-primary auditory areas were significantly more activated by contra-laterally presented stimuli. Comparison of these data with histologically identified non-primary auditory areas suggests that the coding of sound objects within early-stage auditory areas lateral and posterior to primary auditory cortex AI is modulated by the position of the sound, while that within anterior areas is not. Article History: Received 25 May 2010; Revised 28 September 2010; Accepted 11 October 2010
language: eng
source:
identifier: E-ISSN: 1095-9572 ; DOI: 10.1016/j.neuroimage.2010.10.032
fulltext: fulltext
issn:
  • 10959572
  • 1095-9572
url: Link


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titleWhere sound position influences sound object representations: a 7-T fMRI study.
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subjectAcoustic Stimulation–Methods ; Auditory Cortex–Anatomy & Histology ; Auditory Perception–Physiology ; Brain Mapping–Physiology ; Data Interpretation, Statistical–Physiology ; Electromagnetic Fields–Blood ; Female–Physiology ; Functional Laterality–Physiology ; Humans–Physiology ; Image Processing, Computer-Assisted–Physiology ; Magnetic Resonance Imaging–Physiology ; Male–Physiology ; Oxygen–Physiology ; Sound Localization–Physiology ; Space Perception–Physiology ; Young Adult–Physiology ; Oxygen
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descriptionTo link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.neuroimage.2010.10.032 Byline: Wietske van der Zwaag, Giovanni Gentile, Rolf Gruetter, Lucas Spierer, Stephanie Clarke Keywords: Sound localisation; Non-primary auditory cortex; fMRI; Ultra-high field Abbreviations: AA, Anterior auditory area; A1, Primary auditory area; ALA, Anterolateral auditory area; BOLD, Blood Oxygenation Level Dependent; LA, Lateral auditory area; MA, Medial auditory area; MRI, Magnetic Resonance Imaging; MSP, Modulated by Sound Position; nMSP, non-Modulated by Sound Position; PA, Posterior auditory area; ROI, Region of Interest; SPM, Statistical Parametric Map; STA, Superior temporal auditory area Abstract: Evidence from human and non-human primate studies supports a dual-pathway model of audition, with partially segregated cortical networks for sound recognition and sound localisation, referred to as the What and Where processing streams. In normal subjects, these two networks overlap partially on the supra-temporal plane, suggesting that some early-stage auditory areas are involved in processing of either auditory feature alone or of both. Using high-resolution 7-T fMRI we have investigated the influence of positional information on sound object representations by comparing activation patterns to environmental sounds lateralised to the right or left ear. While unilaterally presented sounds induced bilateral activation, small clusters in specific non-primary auditory areas were significantly more activated by contra-laterally presented stimuli. Comparison of these data with histologically identified non-primary auditory areas suggests that the coding of sound objects within early-stage auditory areas lateral and posterior to primary auditory cortex AI is modulated by the position of the sound, while that within anterior areas is not. Article History: Received 25 May 2010; Revised 28 September 2010; Accepted 11 October 2010
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