This title appears in the Scientific Report :
1999
Please use the identifier:
http://dx.doi.org/10.1016/S0926-6410(99)00012-9 in citations.
Please use the identifier: http://hdl.handle.net/2128/3752 in citations.
The time course of the BOLD response in the human auditory cortex to acoustic stimuli of different duration
The time course of the BOLD response in the human auditory cortex to acoustic stimuli of different duration
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 inten...
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Personal Name(s): | Jäncke, J. H. R. |
---|---|
Buchanan, T. / Lutz, K. / Specht, K. / Mirzazade, S. / Shah, J. N. | |
Contributing Institute: |
Institut für Medizin; IME |
Published in: | Brain research / Cognitive brain research, 8 (1999) S. 117 - 124 |
Published in: |
Cognitive Brain Research Volume 8, Issue 2, 16 July 1999, Pages 117-124 |
Imprint: |
Amsterdam [u.a.]
Elsevier Science Publ.
1999
|
Physical Description: |
117 - 124 |
DOI: |
10.1016/S0926-6410(99)00012-9 |
Document Type: |
Journal Article |
Research Program: |
Zerebrale Repräsentation |
Series Title: |
Cognitive Brain Research
8 |
Subject (ZB): | |
Link: |
OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/3752 in citations.
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. |