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  Hierarchical and linear sequence processing: An electrophysiological exploration of two different grammar types

Bahlmann, J., Gunter, T. C., & Friederici, A. D. (2006). Hierarchical and linear sequence processing: An electrophysiological exploration of two different grammar types. Journal of Cognitive Neuroscience, 18(11), 1829-1842. doi:10.1162/jocn.2006.18.11.1829.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0010-B967-D Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-68AF-B
Genre: Journal Article

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 Creators:
Bahlmann, Jörg1, Author              
Gunter, Thomas C.1, Author              
Friederici, Angela D.1, Author              
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1Department Neuropsychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634551              

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 Abstract: The present study investigated the processing of two types of artificial grammars by means of event-related brain potentials. Two categories of meaningless CV syllables were applied in each grammar type. The two grammars differed with regard to the type of the underlying rule. The finite-state grammar (FSG) followed the rule (AB)n, thereby generating local transitions between As and Bs (e.g., n=2, ABAB). The phrase structure grammar (PSG) followed the rule AnBn, thereby generating center-embedded structures in which the first A and the last B embed the middle elements (e.g., n=2, [A[AB]B]). Two sequence lengths (n=2, n=4) were used. Violations of the structures were introduced at different positions of the syllable sequences. Early violations were situated at the beginning of a sequence, and late violations were placed at the end of a sequence. A posteriorly distributed early negativity elicited by violations was present only in FSG. This effect was interpreted as the possible reflection of a violated local expectancy. Moreover, both grammar-type violations elicited a late positivity. This positivity varied as a function of the violation position in PSG, but not in FSG. These findings suggest that the late positivity could reflect difficulty of integration in PSG sequences.

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Language(s): eng - English
 Dates: 2006
 Publication Status: Published in print
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 Rev. Method: -
 Identifiers: eDoc: 293263
Other: P7280
DOI: 10.1162/jocn.2006.18.11.1829
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Title: Journal of Cognitive Neuroscience
Source Genre: Journal
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Publ. Info: Cambridge, MA : MIT Press Journals
Pages: - Volume / Issue: 18 (11) Sequence Number: - Start / End Page: 1829 - 1842 Identifier: ISSN: 0898-929X
CoNE: /journals/resource/991042752752726