Distributed cortical networks for syntax processing: Broca's area as the common denominator  

Oleh:

Heim, St. ; Opitz, B. ; Friederici, A.D.

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Brain and Language (Full Text) vol. 85 no. 3 (2003), page 402-408.
Topik: Syntax; Gender; Word category; fMRI; Broca's area; Language comprehension
Fulltext: 85_03_Heim.pdf (202.19KB)

Isi artikel

Different types of syntactic information (word category, grammatical gender) are processed at different times during word recognition. However, it is an open issue which brain systems support these processes. In the present event-related fMRI study, subjects performed either a syntactic gender decision task on German nouns (GEN), a word category decision task (WC, nouns vs. prepositions), or a physical baseline task (BASE). Reaction times in WC were faster than in GEN, supporting earlier electrophysiological results. Relative to BASE, both syntactic tasks activated the inferior tip of BA 44. In addition, BA 45 showed activation in GEN, whereas BA 47 was activated in WC. The imaging data indicate that the inferior portion of BA 44 together with type-specific prefrontal areas supports both initial word category related and later syntactic processes.

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