Verb agreements during on-line sentence processing in Alzheimer’s disease and frontotemporal dementia  

Oleh:

Price, Catherine C. ; Grossman, Murray

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Brain and Language (Full Text) vol. 94 no. 2 (2005), page 217-232.
Topik: Sentence comprehension; On-line processing; Verb; Thematic; Transitivity; Alzheimer’s disease; Frontotemporal dementia
Fulltext: 94_02_Price.pdf (333.55KB)

Isi artikel

An on-line “word detection” paradigm was used to assess the comprehension of thematic and transitive verb agreements during sentence processing in individuals diagnosed with probable Alzheimer’s Disease (AD, nD15) and Frontotemporal Dementia (FTD, nD14). AD, FTD, and control participants (nD17) were asked to listen for a word in a sentence. Unbeknownst to the participants, the target word followed an agreement involving a verb’s transitivity or thematic role component. Control participants took significantly longer to respond to a target word only when it immediately followed a violation of a thematic role agreement or a transitivity agreement, relative to target word detection immediately following the corresponding correct agreement. AD patients were selectively insensitive to thematic role agreement violations, although they demonstrated a normal processing pattern for transitivity agreements. This is consistent with previous observations showing selective dificulty with the thematic role component of a verb in AD. FTD patients were insensitive to violations of thematic role and transitivity agreements. FTD patients’ impairment for both transitivity and thematic role agreements may reflect a broader degradation of verb knowledge that involves both grammatical and semantic representations, or dificulty processing sentence structure that also causes a thematic role deficit.

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