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Development, and validation of non-speech dichotic listening test

Journal of Otology 2023年第1期18卷 63-69页

作者： Hari Prakash Palaniswamy Mayur Bhat Rajashree Ganesh Bhat Y.Krishna B.Rajashekhar Dept of Speech and Hearing Manipal College of Health Professions Manipal Academy of Higher EducationManipalIndia Dept of Audiology and Speech Language Pathology Kasturba Medical CollegeMangaloreManipal Academy of Higher EducationManipalIndia Speech and Hearing Unit College of Applied Medical ScienceKing Khalid UniversityAbha62529Saudi Arabia

Background:Classic dichotic listening tests using speech stimuli result in right ear advantage,due to the dominant crossed pathway for speech and *** is presumed that similar crossed dominance could exist for non-speech stimuli ***,this is an attempt to develop and validate the dichotic nonspeech test using environmental stimuli and explore the effect of focused attention on this *** and method:Three lists of dichotic stimuli were created using these sounds with fifteen tokens in each *** professionals and non-professionals validated these *** estimation was obtained by administering the newly developed test on 70 adults and 70 children using a free-recall and forced-recall ***:The results showed a significant difference between the left ear and right scores where the left ear score was better than the right,depicting left ear advantage(LEA)for free recall condition in both *** the forced recall condition,LEA was not seen;rather the mean score was significantly higher in the attended ear,irrespective of the stimuli presented to the right or left *** test-retest reliability in free recall was good in both the ears and moderate for forced right ear ***:The novel test consistently showed LEA with good reliability and can be used to assess the hemispheric asymmetry in normal subjects and also in test batteries for the clinical population.

关键词： dichotic listening test Cerebral dominance Hemispheric specialization Right cerebral hemisphere Left cerebral hemisphere

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