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  Evidence for dissociation of spatial and nonspatial auditory information processing

Anourova, I., Nikulin, V. V., lmoniemi, R. J., Hotta, J., Aronen, H. J., & Carlson, S. (2001). Evidence for dissociation of spatial and nonspatial auditory information processing. NeuroImage, 14(6), 1268-1277. doi:10.1006/nimg.2001.0903.

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 Creators:
Anourova, Irina, Author
Nikulin, Vadim V.1, Author              
lmoniemi, Risto J., Author
Hotta, Jaakko, Author
Aronen, Hannu J., Author
Carlson, Synnöve, Author
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1External Organizations, ou_persistent22              

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Free keywords: Sound location; Pitch; N1; N1m; Working memory
 Abstract: Several lines of evidence suggest that visual information processing is segregated into the ventral “what” and dorsal “where” pathways. But the question whether information processing in the auditory system is also parceled to spatial and nonspatial domains remains open. In the present study, we performed simultaneous EEG and MEG recordings during auditory location and pitch delayed matching-to-sample tasks to find out whether working memory processing of the auditory stimulus attribute affects the transient components of the evoked potentials. In both tasks, identical blocks of tone stimuli of one of two frequencies were presented in one of two locations; the only difference between the tasks was the instruction to attend either to the frequency or to the location. In the match condition, the N1 latency was shorter and the N1m amplitude larger in the location task compared to the pitch task. Furthermore, the right-hemisphere generator of N1m elicited in the match condition of the location task was situated significantly medially to the N1m generator in the match condition of the pitch task. Latency and amplitude task-related differences in the N1/N1m components as well as the source location differences indicate at least partial segregation of neuronal mechanisms involved in working memory processing of spatial and nonspatial auditory information.

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Language(s): eng - English
 Dates: 2001-02-212002-05-252001-12
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1006/nimg.2001.0903
 Degree: -

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Title: NeuroImage
Source Genre: Journal
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Publ. Info: Orlando, FL : Academic Press
Pages: - Volume / Issue: 14 (6) Sequence Number: - Start / End Page: 1268 - 1277 Identifier: ISSN: 1053-8119
CoNE: https://pure.mpg.de/cone/journals/resource/954922650166