Journal Article

PreJuSER-35116

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png The time course of the BOLD response in the human auditory cortex to acoustic stimuli of different duration

Jäncke, J. H. R. ; Buchanan, T. ; Lutz, K. ; Specht, K.FZJ* ; Mirzazade, S. ; Shah, J. N.FZJ*

1999
Elsevier Science Publ. Amsterdam [u.a.]

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Please use a persistent id in citations: http://hdl.handle.net/2128/3752  doi:10.1016/S0926-6410(99)00012-9

Abstract: The relationship between activity within the human auditory cortices and the duration of heard tones was investigated by measuring the hemodynamic response with functional magnetic resonance imaging. We demonstrate that there is no significant influence of stimulus duration as used here on the intensity and spatial extent of the hemodynamic response in the auditory cortices. We found however, that the time course of the hemodynamic response to the repeated stimulus presentation exhibited a characteristic decline after the first stimulus exposure during the activation period. The possible reasons for this time course are currently unknown, however, several factors may be involved, including top-down mechanisms and/or the interplay of tissue perfusion and oxygen consumption.

Keyword(s): fMRI ; Stimulus duration ; Auditory cortex

Note: Record converted from VDB: 12.11.2012; Record converted from JUWEL: 18.07.2013

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Contributing Institute(s):

1. Institut für Medizin (IME)

Research Program(s):

1. Zerebrale Repräsentation (40.40.0)

Appears in the scientific report 1999

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Database coverage:
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