Usage of Verb Forms under Agrammatic Aphasia (the example of Uzbek language)

This article analyzes verb usage in Uzbek agrammatic spontaneous speech. The current problem is explored in the sample of Uzbek for the first time. The work is based on the experiment, in which two groups of participants were included: brain-damaged individuals who have aphasia, and non-brain-damaged individuals without aphasia. The analysis showed that there is no noun-verb dissociation in Uzbek agrammatic aphasia. But verb impairment is reflected in poor modal verb production and poor non-finite verb production. In the spontaneous speech of brain-damaged individuals, modal verbs are not used at all, and the number of non-finite verb forms is significantly lower than those of non-brain-damaged participants. The impairment explained by complexity of neurocognitive mechanism of their usage.

aphasia, verb, modal verbs, the participle, the gerund, speech production