نوع مقاله : مقاله پژوهشی
نویسندگان
1 کمیته پژوهشی دانشجویان. دانشجوی کارشناسی ارشد شنواییشناسی، گروه شنواییشناسی، دانشکده علوم توانبخشی، دانشگاه علوم پزشکی شهید بهشتی، تهران، ایران
2 دکترای شنوایی شناسی، استادیار گروه شنوایی شناسی، دانشکده علوم توانبخشی، دانشگاه علوم پزشکی شهید بهشتی، تهران، ایران
3 کارشناس ارشد شنوایی شناسی، مربی گروه شنوایی شناسی، دانشکده علوم توانبخشی، دانشگاه علوم پزشکی شهید بهشتی، تهران، ایران
4 استاد آمار زیستی، گروه علوم پایه، دانشکده علوم توانبخشی، دانشگاه علوم پزشکی شهید بهشتی، تهران، ایرا
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Background and Aim: Bilinguals constitute the group of individuals who talk in two languages with competency equal to the native speakers of both languages, especially at verbal aspects. According to the recent studies, language information is processed differently in the presence of noise. Receptive performance of the second language is affected more in noisy places. The aim of the present study was to investigate the effect of bilingualism on temporal fine structure ability in young normal hearing adults.
Materials and Methods: In the present cross-sectional descriptive analytic study, 30 bilingual adults were compared with 30 monolinguals. Temporal fine structure test was performed at 250-500-700 Hz frequencies. Data analysis was completed running two factor repeated measure analysis of variance, while the age was controlled.
Results: The average of phase change threshold was higher in bilingual group (p=0/02). The difference between the averages of change threshold at different frequencies was found to be significant (p<0/001).
Conclusion: The results of the present study indicated that the TFS ability is stronger in monolinguals. This might be considered as one of the causes of reduced speech recognition ability in noise for bilinguals.
کلیدواژهها [English]