Interaural asymmetries revealed by dichotic listening tests in normal and dyslexic children
Normal and dyslexic right-handed children were assessed with three Dichotic listening tests, the Dichotic Digits test, the Competing Words subtest of the SCAN, and the Dichotic Consonant-Vowel test. Performance was measured as both number and percentage of correct responses in the right and left ears. Laterality was defined as a simple difference in percentage between the two ears. Differences across the tests were revealed for all children, with the greatest differences occurring for left-ear responses. Only one dichotic listening test, Competing Words from the SCAN, produced a consistent right-ear advantage across all of the children tested. Between groups of children, differences in performance and in laterality were demonstrated. Using a criterion of poorer than 76 percent correct for the left ear, the Competing Words subtest of the SCAN identified 7 of the 10 dyslexic children as abnormal, with no false alarms in the control group.
Journal of the American Academy of Audiology
Moncrieff, D., & Musiek, F. (2002). Interaural asymmetries revealed by dichotic listening tests in normal and dyslexic children. Journal of the American Academy of Audiology, 13 (8), 428-437. Retrieved from https://digitalcommons.memphis.edu/facpubs/15402