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:: Volume 22, Issue 3 (10-2013) ::
aud 2013, 22(3): 31-41 Back to browse issues page
Constructing Persian version of the Bergen dichotic listening test and its preliminary results in normal adults
Zahra Jafari 1, Reyhaneh Toufan2, Maryam Aghamollaei2, Saeed Malayeri3, Shadi Rahimzadeh4, Mahdiyeh Esmaili4
1- Department of Basic Sciences in Rehabilitation, School of Rehabilitation, Tehran University of Medical Sciences, Iran
2- Department of Audiology, School of Rehabilitation, Tehran University of Medical Sciences, Iran
3- Department of Audiology, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
4- Department of Rehabilitation Management, School of Rehabilitation, Tehran University of Medical Sciences, Iran
Abstract:   (13513 Views)

Background and Aim: Dichotic listening means presentation of two different auditory stimuli to each ear simultaneously. This study deals with the development of Persian version of Bergen dichotic listening test and its preliminary results on auditory attention and language laterality in adults with normal hearing.

Methods: Persian version of the Bergen dichotic listening test was instructed by six consonant-vowel syllables to evaluate three conditions of non-forced attention, attention to right and attention to left ears separately. Then, it was performed on 54 right-handed young adults with normal hearing and the mean age of 23.24 (SD=2.78) years from both genders.

Results: Frequency of correct response in the right ear was higher significantly in two conditions of non-forced attention (83.3%) and attention to the right ear (98.1%), and also was higher significantly in the left ear (-79.6%) in attention to the left (p<0.0001). Laterality index was 31.33% in non-forced attention, 73.30% in attention to the right and -37.50% in attention to the left which was significantly different (p<0.0001).

Conclusion: Right ear advantage was revealed in non-forced attention that was altered with selective attention to the right and left remarkably result from the effect of top-down processing of brain cortex on bottom-top processing of speech stimulus. These preliminary results showed the performance of Bergen dichotic listening test to test auditory attention and language laterality.

Keywords: Dichotic listening, divided attention, selective attention, right ear advantage, top-down processing
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Type of Study: Research |
Received: 2012/03/12 | Accepted: 2012/09/16 | Published: 2013/10/9
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Volume 22, Issue 3 (10-2013) Back to browse issues page
شنوایی شناسی - دانشگاه علوم پزشکی تهران Bimonthly Audiology - Tehran University of Medical Sciences
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