Resource Limitations in Aphasiac Sentence Production Based on Temporal Window Hypothesis

Abstract

The main purpose of the study was to find the resource limitations as underlying agrammatism and its symptoms. The only participant of the study was an Iranian American biology teacher, fluent both in Persian and English, and 54 years old when hospitalized for a right hemiplegia and a verbal suppression following a stroke. After the administration of some tests, the outcome of the study related to the research questions revealed that there were two types of difficulties. The first was abnormally fast decay of information and the second one was abnormally long delay in the retrieval of other information put forward by the temporal window hypothesis. Also the results from the present study showed abnormal patterns of grammatical activation for aphasic subject and it showed that the grammatical errors appeared more than sentential and lexical errors. The results also revealed that treatment could mitigate the patients suffering from agrammatism and accelerate his language learning process.