Research Article

Investigation of temporal resolution laterality

Abstract

Background and Aim: Auditory temporal resolution skill is calculated according to the minimum required time to analyze or integrate acoustic events. This skill, which is essential for speech perception, was evaluated by gap detection tests. The aim of this study was to determine the presence or absence of any differences between the right and left ear in the gap detection test.
Methods: After performing auditory tests to rule out any hearing loss or auditory processing disorders, the gap detection test was administered to 40 adults.
Results: Gap detection thresholds were 5.35 ms and 5.30 ms in the right and left ear, respectively, and the average correct answers percentages were 69.03% and 68.03% in the right and left ear, respectively. According to these data, results were similar for both ears.
Conclusion: There is no laterality in temporal resolution tasks. However, we cannot generalize the results of the present study as being applicable to the whole society.

1. Mohamadkhani G, Nilforoushkhoshk MH, Zadeh Mohammadi A, Faghihzadeh S, Sepehrnejhad M. Comparison of gap in noise test results in musicians and nonmusician controls. Audiol. 2010, 19(2): 33-8. Persian.
2. Mehdizade Gilani V, Ruzbahani M, Mahdi P, Amali A, Nilforush Khoshk MH, Sameni J, et al. Temporal processing evaluation in tinnitus patients: results on analysis of gap in noise and duration pattern test. Iran J
Otorhinolaryngol. 2013;25(73):221-6.
3. Snell KB, Hu HL. The effect of temporal placement on gap detectability. J Acoust Soc Am. 1999;106(6):3571-7.
4. Phillips DP. Effect of tone-pulse rise time on rate-level functions of cat auditory cortex neurons: excitatory and inhibitory processes shaping responses to tone onset. J Neurophysiol. 1988;59(5):1524-39.
5. Kilgard MP, Merzenich MM. Distributed representation of spectral and temporal information in rat primary auditory cortex. Hear Res. 1999;134(1-2):16-28.
6. Hackett TA, Preuss TM, Kaas JH. Architectonic identification of the core region in auditory cortex of macaques, chimpanzees, and humans. J Comp Neurol. 2001;441(3):197-222.
7. Penhune VB, Zatorre RJ, MacDonald JD, Evans AC. Interhemispheric anatomical differences in human primary auditory cortex: probabilistic mapping and volume measurement from magnetic resonance scans. Cereb Cortex. 1996;6(5):661-72.
8. Musiek FE, Reeves AG. Asymmetries of the auditory areas of the cerebrum. J Am Acad Audiol. 1990;1(4):240-5.
9. Zatorre RJ, Belin P. Spectral and temporal processing in human auditory cortex. Cereb Cortex. 2001;11(10):946-53.
10. Brown S, Nicholls ME. Hemispheric asymmetries for the temporal resolution of brief auditory stimuli. Percept Psychophys. 1997;59(3):442-7.
11. Sulakhe N, Elias LJ, Lejbak L. Hemispheric asymmetries for gap detection depend on noise type. Brain Cogn. 2003;53(2):372-5.
12. Efron R, Yund EW, Nichols D, Crandall PH. An ear asymmetry for gap detection following anterior temporal lobectomy. Neuropsychologia. 1985;23(1):43-50.
13. Baker RJ, Rosen S, Godrich A. No right ear advantage in gap detection. Speech Hear Lang. 2000;12:57-69.
14. Musiek FE, Shinn JB, Jirsa R, Bamiou DE, Baran JA, Zaida E. GIN (Gaps-In-Noise) test performance in subjects with confirmed central auditory nervous system involvement. Ear Hear. 2005;26(6):608-18.
15. Baran J, Musiek FE. Behavioral assessment of the central auditory nervous system. In: Musiek FE, Rintelmann WF, editors. Contemporary perspectives in hearing assessment. 1st ed. Boston: Allyn and Bacon. 1999. p. 375-413.
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IssueVol 24 No 1 (2015) QRcode
SectionResearch Article(s)
Keywords
Auditory cortex gap in noise temporal resolution central auditory processing laterality
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Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
How to Cite
1.
Nasr Esfahani AA, Mohamadkhani G, Farahani S, Jalilvand Karimi L, Faghihzadeh S. Investigation of temporal resolution laterality. Aud Vestib Res. 2015;24(1):38-41.