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Allocentric or Craniocentric Representation of Acoustic Space: An Electrotomography Study Using Mismatch Negativity

The world around us appears stable in spite of our constantly moving head, eyes, and body. How this is achieved by our brain is hardly understood and even less so in the auditory domain. Using electroencephalography and the so-called mismatch negativity, we investigated whether auditory space is enc...

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Detalles Bibliográficos
Autores principales: Altmann, Christian F., Getzmann, Stephan, Lewald, Jörg
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3407090/
https://www.ncbi.nlm.nih.gov/pubmed/22848643
http://dx.doi.org/10.1371/journal.pone.0041872
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author Altmann, Christian F.
Getzmann, Stephan
Lewald, Jörg
author_facet Altmann, Christian F.
Getzmann, Stephan
Lewald, Jörg
author_sort Altmann, Christian F.
collection PubMed
description The world around us appears stable in spite of our constantly moving head, eyes, and body. How this is achieved by our brain is hardly understood and even less so in the auditory domain. Using electroencephalography and the so-called mismatch negativity, we investigated whether auditory space is encoded in an allocentric (referenced to the environment) or craniocentric representation (referenced to the head). Fourteen subjects were presented with noise bursts from loudspeakers in an anechoic environment. Occasionally, subjects were cued to rotate their heads and a deviant sound burst occurred, that deviated from the preceding standard stimulus either in terms of an allocentric or craniocentric frame of reference. We observed a significant mismatch negativity, i.e., a more negative response to deviants with reference to standard stimuli from about 136 to 188 ms after stimulus onset in the craniocentric deviant condition only. Distributed source modeling with sLORETA revealed an involvement of lateral superior temporal gyrus and inferior parietal lobule in the underlying neural processes. These findings suggested a craniocentric, rather than allocentric, representation of auditory space at the level of the mismatch negativity.
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spelling pubmed-34070902012-07-30 Allocentric or Craniocentric Representation of Acoustic Space: An Electrotomography Study Using Mismatch Negativity Altmann, Christian F. Getzmann, Stephan Lewald, Jörg PLoS One Research Article The world around us appears stable in spite of our constantly moving head, eyes, and body. How this is achieved by our brain is hardly understood and even less so in the auditory domain. Using electroencephalography and the so-called mismatch negativity, we investigated whether auditory space is encoded in an allocentric (referenced to the environment) or craniocentric representation (referenced to the head). Fourteen subjects were presented with noise bursts from loudspeakers in an anechoic environment. Occasionally, subjects were cued to rotate their heads and a deviant sound burst occurred, that deviated from the preceding standard stimulus either in terms of an allocentric or craniocentric frame of reference. We observed a significant mismatch negativity, i.e., a more negative response to deviants with reference to standard stimuli from about 136 to 188 ms after stimulus onset in the craniocentric deviant condition only. Distributed source modeling with sLORETA revealed an involvement of lateral superior temporal gyrus and inferior parietal lobule in the underlying neural processes. These findings suggested a craniocentric, rather than allocentric, representation of auditory space at the level of the mismatch negativity. Public Library of Science 2012-07-27 /pmc/articles/PMC3407090/ /pubmed/22848643 http://dx.doi.org/10.1371/journal.pone.0041872 Text en © 2012 Altmann et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Altmann, Christian F.
Getzmann, Stephan
Lewald, Jörg
Allocentric or Craniocentric Representation of Acoustic Space: An Electrotomography Study Using Mismatch Negativity
title Allocentric or Craniocentric Representation of Acoustic Space: An Electrotomography Study Using Mismatch Negativity
title_full Allocentric or Craniocentric Representation of Acoustic Space: An Electrotomography Study Using Mismatch Negativity
title_fullStr Allocentric or Craniocentric Representation of Acoustic Space: An Electrotomography Study Using Mismatch Negativity
title_full_unstemmed Allocentric or Craniocentric Representation of Acoustic Space: An Electrotomography Study Using Mismatch Negativity
title_short Allocentric or Craniocentric Representation of Acoustic Space: An Electrotomography Study Using Mismatch Negativity
title_sort allocentric or craniocentric representation of acoustic space: an electrotomography study using mismatch negativity
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3407090/
https://www.ncbi.nlm.nih.gov/pubmed/22848643
http://dx.doi.org/10.1371/journal.pone.0041872
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