Purpose: Lexical processing impairments such as delayed and reduced activation of lexical-semantic information have been linked to syntactic processing disruptions and sentence comprehension deficits in individuals with aphasia (IWAs). Lexical-level deficits can also preclude successful lexical encoding during sentence processing and amplify the…

Producing a sentence involves encoding a preverbal message into a grammatical structure by retrieving lexical items and integrating them into a functional (semantic-to-grammatical) structure. Individuals with agrammatism are impaired in this grammatical encoding process. However, it is unclear what aspect of grammatical encoding is impaired and…

Semantically reversible sentences are prone to misinterpretation and take longer for typically developing children and adults to comprehend; they are also particularly problematic for those with language difficulties such as aphasia or Specific Language Impairment. In our study, we used fMRI to compare the processing of semantically reversible and…

A study of eight adult chronic aphasic patients' comprehension of sentences and pictures in which comparisons of time and space were crucial was designed to assess A. R. Luria's approach to designing comprehension test tasks. The investigation required patients, with lesions of varying size and location, to determine whether a sentence expressing…

The functional architecture of the verbal processing resource system was studied by testing aphasic patients in Canada and Boston for their abilities to use syntactic structure in sentence comprehension in isolation and under dual-task conditions. Results indicate that the processing resource system underlying syntactic processing is separate from…

Presents the results of three experiments investigating the time course of grammaticality judgement. The high correlations among the experiments suggest that the incremental tasks assigned were tapping into the same decision-making process as is found online. The article discusses the findings' implications for the error types that do and do not…