PSYCH 161 Lecture Notes - Lecture 12: Speech Repetition, Paraphasia, Jargon
Document Summary
10-30% of aphasic patients have global aphasia. Language limited to a few words, exclamations, and serial utterances. Poor auditory comprehension and poor speech repetition. Extensive cortical damage including the major speech areas. A few case studies show smaller lesions associated with global aphasia. Extra syllables may be added to words. Often no apparent associated neurological symptoms, paresis or paralysis. Cortical damage typically involves left posterior temporal gyrus. Distinguishing feature is that speech repetition is intact with wernicke"s aphasia present. Uncommon condition and probably associated with secondary etiology. Spontaneous speech contains added or deleted phonemes (phonemic paraphasia) Classically considered a disconnection syndrome and attributed to arcuate fasciculus damage. Contemporary studies suggest damage primarily includes the left temporal-parietal junction. A symptom found in all types of aphasia. Symptoms found in patients with dementia and other neurological disorders. Debilitating and pervasive word finding difficulty is the major characteristic. Speech fluent and speech repetition relatively intact.
