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  The role of the left Brodmann's areas 44 and 45 in reading words and pseudowords

Heim, S., Alter, K., Ischebeck, A. K., Amunts, K., Eickhoff, S. B., Mohlberg, H., et al. (2005). The role of the left Brodmann's areas 44 and 45 in reading words and pseudowords. Cognitive Brain Research, 25(3), 982-993. doi:10.1016/j.cogbrainres.2005.09.022.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0010-E433-2 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-6011-F
Genre: Journal Article

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 Creators:
Heim, Stefan1, Author              
Alter, Kai2, Author              
Ischebeck, Anja K.2, Author              
Amunts, Katrin, Author
Eickhoff, Simon B., Author
Mohlberg, Hartmut, Author
Zilles, Karl, Author
von Cramon, D. Yves3, Author              
Friederici, Angela D.1, Author              
Affiliations:
1Department Neuropsychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634551              
2Max Planck Research Group Neurocognition of Prosody, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634567              
3Department Cognitive Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634563              

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Free keywords: Broca's area; BA 44; BA 45; Grapheme-to-phoneme conversion; Lexical search; Visual word recognition
 Abstract: In this functional magnetic resonance imaging (fMRI) study, we investigated the influence of two task (lexical decision, LDT; phonological decision, PDT) on activation in Broca's region (left Brodmann's areas [BA] 44 and 45) during the processing of visually presented words and pseudowords. Reaction times were longer for pseudowords than words in LDT but did not differ in PDT. By combining the fMRI data with cytoarchitectonic anatomical probability maps, we demonstrated that the left BA 44 and BA 45 were stronger activated for pseudowords than for words. Separate analyses for LDT and PDT revealed that the left BA 44 was activated in both tasks, whereas left BA 45 was only involved in LDT. The results are interpreted within a dual-route model of reading with the left BA 44 supporting grapheme-to-phoneme conversion and the left BA 45 being related to explicit lexical search.

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Language(s): eng - English
 Dates: 2005
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: -
 Identifiers: eDoc: 248484
Other: P7140
DOI: 10.1016/j.cogbrainres.2005.09.022
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Title: Cognitive Brain Research
  Other : Cognit. Brain Res.
Source Genre: Journal
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Publ. Info: Amsterdam : Elsevier
Pages: - Volume / Issue: 25 (3) Sequence Number: - Start / End Page: 982 - 993 Identifier: ISSN: 0926-6410
CoNE: /journals/resource/954925385137_2