Neuromaturation of Ear Asymmetry in Dichotic Listening of Children Aged 6-12 Years

Document Type : Original article

Authors

1 Student Research Committee. MSc in Audiology, Department of Audiology, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran

2 PhD, Assisstant Professor, Department of Audiology, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran

3 MSc in Biostatistics, Basic Sciences Department, School of Rehabilitation, Shahid Beheshti University of Medical Science, Tehran, Iran

Abstract

Background and Aims: Persian Pediatric Competing Words (PPCW) and Persian Randomized Dichotic Digit (PRDD) tests were previously developed and adapted for use in Persian language. The present study aimed to investigate the effect of age on the results of these tests in children.
Materials and Methods: The current observational and descriptive-analytic study was performed on 241 schoolchildren, including 122 (50.6%) male and 119 (49.4%) female children with an age range of 6 to 12 years. All children had a hearing level of 15 dB HL or lower in frequencies of 250-8000 Hz. Inter-aural hearing threshold asymmetry was less than 10 dB. Children’s handedness was determined using Chapman and Chapman handedness questionnaire. Ear advantage was calculated in two methods: right ear advantage and dominant ear advantage. The effect of age, gender, and handedness on the ear advantage was investigated.
Results: The results showed that as the children's age increased from 6 to 12 years, the ear scores for both of the tests increased. In general, the dominant ear advantage for the both tests was significantly greater than that for the right ear advantage. Also, it was found that the mean of the right ear advantage for both of the test was not significantly different between males and females and between right-handed and left-handed children.
Conclusion: The ear scores of PRDD and PPCW tests increased with age independent of the effect of gender and handedness of 6-12 year-old children. Dominant ear advantage is a more conservative method for reporting ear advantage.

Keywords

Main Subjects

References

1.   Bloom, J.S. and G.W. Hynd, The role of the corpus callosum in interhemispheric transfer of information: excitation or inhibition? Neuropsychol Rev, 2005. 15(2): p. 59-71.##
2.   Kolb B., W.I.Q., Fundamentals of human psychology. (2009). ##
3.   J., G.L.G., ed. Cognition: Methods and Processes. In G. L. Grieve J., Neuropsychology for Occupational Therapists: Cognition in Occupational Performance Third ed ed. 2008. p. 77. ##
4.   Sommer, I.E., et al., Sex differences in handedness, asymmetry of the planum temporale and functional language lateralization. Brain Res, 2008. 1206: p. 76-88. ##
5.   Cho, J., et al., Handedness and Asymmetry of Motor Skill Learning in Right-handers. J Clin Neurol, 2006. 2(2): p. 113-7. ##
6.   Moncrieff, D.W., Dichotic listening in children: age-related changes in direction and magnitude of ear advantage. Brain Cogn, 2011. 76(2): p. 316-22. ##
7.   Moncrieff, D., Age-and Gender-Specific Normative Information from Children Assessed with a Dichotic Words Test. Journal of the American Academy of Audiology, 2015. 26(7): p. 632-644. ##
8.   Musiek, F.E., Assessment of central auditory dysfunction: the dichotic digit test revisited. Ear and hearing, 1983. 4(2): p. 79-83. ##
9.   Morris, R., et al., Dichotic listening ear asymmetry: Patterns of longitudinal development. Brain and language, 1984. 22(1): p. 49-66. ##
10. Keith, R.W. and J. Anderson, Dichotic listening tests, in Handbook of (central) auditory processing disorder, F. Museik and G.D. Chermak, Editors. 2007, plural publishing: san Diego. p. 207-230. ##
11. Mukari, S.Z., et al., Development and standardization of single and double dichotic digit tests in the Malay language. Int J Audiol, 2006. 45(6): p. 344-52. ##
12. Larsen, S., Developmental changes in the pattern of ear asymmetry as revealed by a dichotic listening task. Cortex, 1984. 20(1): p. 5-17. ##
13. Mahdavi, M. and A. Peyvandi, Persian competing word test: Development and preliminary results in normal children. Audiology, 2007. 16(2): p. 1-7 [In Persian]. ##
14. Mahdavi, M.E., et al., Persian randomized dichotic digits test: Development and dichotic listening performance in young adults. Audiology, 2015. 23(6): p. 99-113. ##
15. Keith, R.W., Development and standardization of SCAN-C: test of auditory processing disorders in children. J Am Acad Audiol., 2000. 11: p. 438-445. ##
16. Keith, R.W., Diagnosing central auditory processing disorders in children, in Audiology: Diagnosis, R.J. Roeser, M. Valente, and H. Hosford-Dunn, Editors. 2007, Thieme Medical Publisher: New York. p. 337-353. ##
17. Keith, R.W. and J. Anderson, Dichotic listening tests, in Handbook of (central) auditory processing disorder, F. Museik and G.D. Chermak, Editors. 2007, Plural publishing: San Diego. p. 207-230. ##
18. Bellis, T.J., Assessment and management of central auditory processing disorders in the educational setting : from science to practice. 1996, San Diego, Calif. ; London: Singular Publishing. ##
19. Rauch, R.A. and J.R. Jinkins, Analysis of cross-sectional area measurements of the corpus callosum adjusted for brain size in male and female subjects from childhood to adulthood. Behav Brain Res, 1994. 64(1-2): p. 65-78. ##
20. Luders, E., et al., The link between callosal thickness and intelligence in healthy children and adolescents. Neuroimage, 2011. 54(3): p. 1823-30. ##
21. Voyer, D., Sex differences in dichotic listening. Brain Cogn, 2011. 76(2): p. 245-55. ##
The Scientific Journal of Rehabilitation Medicine
Volume 7, Issue 1
March and April 2018
Pages 110-117

Files

History

  • Receive Date: 21 September 2016
  • Revise Date: 20 December 2016
  • Accept Date: 03 June 2017
  • First Publish Date: 21 March 2018

Share

How to cite

Statistics