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Science 6 September 2002:
Vol. 297. no. 5587, pp. 1706 - 1708
DOI: 10.1126/science.1074355
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Reports
Spatiotemporal Pattern of Neural Processing in the Human Auditory Cortex
Erich Seifritz,1*
Fabrizio Esposito,2
Franciszek Hennel,3
Henrietta Mustovic,1
John G. Neuhoff,4
Deniz Bilecen,5
Gioacchino Tedeschi,2
Klaus Scheffler,6
Francesco Di Salle7
The principles that the auditory cortex uses to decipher
a stream of acoustic information have remained elusive. Neural
responses in the animal auditory cortex can be broadly classified into
transient and sustained activity. We examined the existence of similar
principles in the human brain. Sound-evoked, blood oxygen
level-dependent signal response was decomposed temporally into
independent transient and sustained constituents, which predominated in
different portions--core and belt--of the auditory
cortex. Converging with unit recordings, our data suggest that this
spatiotemporal pattern in the auditory cortex may represent a
fundamental principle of analyzing sound information.
1 Department of Psychiatry, University of Basel, 4025 Basel, Switzerland.
2 Second Division of Neurology, Second
University of Naples, 80138 Naples, Italy.
3 Magnetic
Resonance Department, 44691, Fondation pour la Recherche
Appliquée en Psychiatre, Hospital Center, 68250 Rouffach, France.
4 Department of Psychology, The College of Wooster, Wooster,
OH 44691, USA.
5 Department of Radiology, University of
Basel, 4031 Basel, Switzerland.
6 Section for Medical
Physics, Department of Radiology, University of Freiburg, 79106 Freiburg, Germany.
7 Department of Neurological Sciences,
Division of Neuroradiology, University of Naples Federico II, 80127 Naples, Italy.
*
To whom correspondence should be addressed. E-mail:
erich.seifritz{at}unibas.ch
Read the Full Text
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