This title appears in the Scientific Report :
2003
Please use the identifier:
http://dx.doi.org/10.1016/S0304-3940(03)00494-4 in citations.
Lexical decision of nonwords ans pseudoword in humans: a positron emission tomography study
Lexical decision of nonwords ans pseudoword in humans: a positron emission tomography study
In this functional positron emission tomography study brain activations during an auditory lexical decision task with two experimental conditions were investigated. First, the subjects had to discriminate between real words and nonwords; second, real words varied with pseudowords. Comparing each of...
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Personal Name(s): | Specht, K. |
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Holtel, C. / Zahn, R. / Herzog, H. / Krause, B. J. / Mottaghy, F. M. / Radermacher, I. / Schmidt, D. / Tellmann, L. / Weis, S. / Willmes, K. / Huber, W. | |
Contributing Institute: |
Institut für Medizin; IME |
Published in: | Neuroscience letters, 345 (2003) S. 177 - 181 |
Imprint: |
Amsterdam [u.a.]
Elsevier Science
2003
|
Physical Description: |
177 - 181 |
DOI: |
10.1016/S0304-3940(03)00494-4 |
Document Type: |
Journal Article |
Research Program: |
Neurowissenschaften |
Series Title: |
Neuroscience Letters
345 |
Subject (ZB): | |
Publikationsportal JuSER |
In this functional positron emission tomography study brain activations during an auditory lexical decision task with two experimental conditions were investigated. First, the subjects had to discriminate between real words and nonwords; second, real words varied with pseudowords. Comparing each of these tasks to an auditory control condition we found bilateral activation of the superior temporal and inferior frontal gyrus, lateralized to the left in the pseudoword condition. The comparison of the lexical decision tasks revealed higher rCBF during the pseudo-/real word decisions within BA 47, adjacent to Broca's area, and the anterior cingulate. The data support the notion that the lexical decision during a nonword task is mainly based on a phonological discrimination process, whereas a pseudoword task more strongly requires lexical access resulting in activation of BA 47. (C) 2003 Elsevier Science Ireland Ltd. All rights reserved. |