A Study On Computed Tomography, Magnetic Resonance Localization, Language Dominance, Auditory Comprehension Impairmentand And Tones, Intonation In Aphasia

OBJECTIVES: Aphasia is defined as the language impairment that results from the cerebral lesions. Stroke is one of the most common causes in aphasia, and over one third of patients with stroke manifest various language deficits that differ in degree. The aim of the article is to study the correlation between aphasia type and lesion location. METHORDS: We investigate 134 acute patients with stroke by means of Aphasia Battery of Chinese and computed tomography ,magnetic resonance and find 94 patients with aphasia. The types of aphasia include motor, sensory, conduction, transcortical (motor, sensory), mixed transcortical, gobal, anomic aphasia, thalamic and basal ganglion aphasia. Study the lesion region of all the aphasia types. RESULTS: Motor, sensory, conduction and anomic aphasia are usually associated with the lesions of the language areas in the perisylvian region. Global aphasia is related to extensive anterior-posterior lesions of the left hemisphere. Transcortical aphasia is mainly associated with the lesions of borderzone Subcortical aphasia involved in the thalamic and basal ganglion areas, frequently extending to white matter around the ventricle. CONCLUSIONS: There is good correlation between most aphasia types and lesion location.