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At the recent Eastern Section Meeting of the Triological Society, the Dichotic Digit Test was described by Frank Musiek, PhD, of the Dartmouth-Hitchcock Medical Center, Hanover, NH, as a screening tool to detect disorders of the central auditory nervous system producing symptoms of hearing loss. The purpose of such a test would be not only to detect unknown central auditory system disorders but also to measure the involvement of known central nervous system (CNS) lesions and monitor any changes in them.
To determine the efficacy of the Dichotic Digit Test, two groups were administered the test. The Dichotic Digit Test is a simple audiometric examination that can be performed in less than five minutes using standard audiometric equipment. Two digits are presented simultaneously to the patient, one to each ear. Thirty-two patients with confirmed lesions of the CNS and 30 patients with cochlear pathology were administered the test. Those patients
KVETON JE. A Screening Test for Central Auditory Disorders. Arch Otolaryngol Head Neck Surg. 1987;113(6):591. doi:10.1001/archotol.1987.01860060017002
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