Pronominal Resolution and Gap Filling in Agrammatic Aphasia: Evidence from Eye Movements  

Oleh:

Thompson, Cynthia K. ; Choy, Jungwon Janet

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Journal of Psycholinguistics Research =>ada di SpringerLink 1972(vol.1) - Mutakhir; PROQUEST vol. 38 no. 3 (Jun. 2009), page 255-283.
Topik: Aphasia · Agrammatism · Sentence comprehension · Filler-gap dependencies · On-line sentence processing · Wh-movement · Binding · Reflexives · Pronouns · Eye tracking
Fulltext: vol. 38 issue 3 June 2009. p. 255 - 283.pdf (741.6KB)

Isi artikel

This paper reports the results of three studies examining comprehension and realtime processing of pronominal (Experiment 1) and Wh-movement (Experiments 2 and 3) structures in agrammatic and unimpaired speakers using eyetracking. We asked the following questions: (a) Is off-line comprehension of these constructions impaired in agrammatic listeners?, (b)Do agrammatic, like unimpaired, listeners showeyemovement patterns indicative of automatic pronominal reference resolution and/or gap-filling?, and (c) Do eyetracking patterns differ when sentences are correctly versus incorrectly interpreted, or do automatic processes prevail in spite of comprehension failure? Results showed that off-line comprehension of both pronoun and Wh-movement structures was impaired in our agrammatic cohort. However, the aphasic participants showed visual evidence of real-time reference resolution as they processed binding structures, including both pronouns and reflexives, as did our unimpaired control participants. Similarly, both the patients and the control participants showed patterns consistent with successful gap filling during processing of Wh-movement structures. For neither pronominal nor movement structures did we find evidence of delayed processing. Notably, these patterns were found for the aphasic participants even when they incorrectly interpreted target sentences, with the exception of object relative constructions. For incorrectly interpreted sentences, we found end of sentence lexical competition effects. These findings indicate that aberrant lexical integration, rather than representational deficits or generally slowed processing, may underlie agrammatic aphasic listener’s comprehension failure.

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