Gangguan Fonologis dalam Berbahasa Indonesia oleh Penderita Stroke: Studi Neurolinguistik

Abstract

The objective of this research is to identify the types of phonological disorders in Indonesian-speaking stroke patients and to determine the disturbed dominant hemisphere based on the structure of these phonological disorders. The data are obtained from the utterances of stroke patients who experience difficulty in producing speech. Data are collected using the listening method with basic recording techniques, followed by the technique of free listening without speech involvement. Data analysis uses the matching method, with the basic technique being the PUP (Key Element Segregation) technique, which involves categorizing phonological disorders such as addition, omission, substitution, or metathesis in vowel and consonant sounds. Additionally, the dominant disturbance in either Broca's or Wernicke's areas, as viewed through the phonological disorders, is identified. The results show that phonological disorders occur more frequently in consonant sounds (54.66%) compared to vowel sounds (45.33%) in stroke patients. Sound omission and substitution are the two most common types of disturbances observed. The analysis also suggests that phonological disorders in most stroke patients are related to disturbances in the dominant hemisphere, particularly in Broca's area, which controls speech sound production. However, there is one case (Patient V) that indicates a disturbance in the language comprehension area, Wernicke's area.