Research Article

Auditory attention evaluation in the elderly using a Persian version of consonant-vowel dichotic test


Background and Aim: Aging is accompanied with changes in cognitive capacities. In spite of advances in neural imaging technologies, there is not a straightforward method to observe cognitive functions. For assessing brain functions, researchers mainly use psychometric tests. The aim of this study was using consonant-vowel (CV) dichotic test as a non-invasive behavioral test for auditory attention (focused and divided attention) and language laterality evaluation in young and old age groups.
Methods: In the present cross-sectional study, Persian version of consonant-vowel dichotic test was performed on 28 young subjects within 18-28 and 27 old subjects within 60-80 year-old age range of both genders. All subjects had normal peripheral hearing and were right-handed. Right and left ear scores were compared under three different attention conditions: divided or non-forced attention, attention to the right ear, attention to the left ear.
Results: In non-forced condition there was no significant difference for the right ear score between the two age groups (p=0.97) but the left ear score was statistically different (p≤0.001). In addition, there was a significant difference between two ears’ scores in attention to right/left ear for both age groups (p≤0.001).
Conclusion: In the older group under divided attention condition, the left ear score was lower than the younger group and they had problem in paying attention especially to the left ear stimuli. In the older group, ear asymmetry for consonant-vowel dichotic test score was higher than the younger one.

1. Malayeri S, Jafari Z. Frequency distribution of hearing loss among nursing home residents of tehran province. RJMS. 2004;11(40):299-306. Persian.
2. Nazeri AR, Lotfi Y, Moosavi A, Zamiri F, Delfi M. Auditory processing disorders in elderly people. J Rehab Med. 2014;3(1):58-66. Persian.
3. Andersson M, Reinvang I, Wehling E, Hugdahl K, Lundervold AJ. A dichotic listening study of attention control in older adults. Scand J Psychol. 2008;49(4):299-304.
4. Passow S, Westerhausen R, Wartenburger I, Hugdahl K, Heekeren HR, Lindenberger U, et al. Human aging compromises attentional control of auditory perception. Psychol Aging. 2012;27(1):99-105.
5. Hommet C, Mondon K, Berrut G, Gouyer Y, Isingrini M, Constans T, et al. Central auditory processing in aging: the dichotic listening paradigm. J Nutr Health Aging. 2010;14(9):751-6.
6. Hugdahl K. Dichotic listening in the study of auditory laterality. In: Hugdahl K, Davidson RJ, editors. The assymetrical brain. 1st ed. Cambridge: MIT Press; 2004. p. 441-75.
7. Jafari Z, Aghamollaei M, Toufan R, Malayeri S, Esmaili M, Rahimzadeh S. Effects of handedness and gender on auditory attention in Bergen dichotic listening. Advances in Cognitive Science. 2012;14(1):1-10. Persian.
8. Medwetsky L. Mechanisms underlying central auditory processing. In: Katz J, Medwetsky L, Burkard R, Hood L, editors. Handbook of clinical audiology. 6 th ed. Baltimore: Williams & Wilkins; 2009. p. 712-25.
9. Takio F, Koivisto M, Jokiranta L, Rashid F, Kallio J, Tuominen T, et al. The effect of age on attentional modulation in Dichotic listening. Dev Neuropsychol. 2009;34(3):225-39.
10. Talebi H, Tahaei A, Akbari M, Kamali M. The comparison of auditory selective attention and auditory divided attention between patients with cerebrovascular accident and normal cases. Journal of Rehabilitation. 2007;8(1):17-24. Persian.
11. Hallgren M, Johansson M, Larsby B, Arlinger S. Dichotic speech tests. Scand Audiol. 1998;27(4):35-39.
12. Jafari Z, Toufan R, Aghamollaei M, Malayeri S, Rahimzadeh S, Esmaili M. Constructing Persian version of the Bergen dichotic listening test and its preliminary results in normal adults. Audiol. 2013;22(3):31-41. Persian.
13. Lotfi Y, Talebi H, Mehrkian S, Khodaei MR, Faghih Zadeh S. Effect of cognitive and central auditory impairments on satisfaction of amplification in hearing impaired older adults. Salmand Iranian Journal of Aging. 2012;7(2):45-52. Persian.
14. Moncrieff DW, Wilson RH. Recognition of randomly presented one-, two-, and three-pair dichotic digits by children and young adults. J Am Acad Audiol. 2009;20(1):58-70.
IssueVol 24 No 3 (2015) QRcode
SectionResearch Article(s)
Focused attention divided attention dichotic consonant-vowel test elderly bottom-up processing top-down processing

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How to Cite
Rezapour M, Lotfi Y, Moossavi A, Nazeri AR, Bakhshi E. Auditory attention evaluation in the elderly using a Persian version of consonant-vowel dichotic test. Aud Vestib Res. 24(3):157-163.