Background/aim: Central auditory processing disorder (CAPD) might precede the onset of Alzheimer's disease (AD). A method of evaluating CAPD is the dichotic digits test (DDT). The aim was to address this in a longitudinal setting.
Methods: A total of 136 individuals were assessed with peripheral and central hearing tests at baseline and at 5-year follow-up.
Results: Subjects with AD showed a significant decline in DDT scores of the right ear from baseline to follow-up. The other groups retained high DDT scores. Peripheral auditory function declined as expected according to age.
Conclusions: Our study indicates that DDT performance reflects an ongoing process resulting in dementia.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6243903 | PMC |
| http://dx.doi.org/10.1159/000493340 | DOI Listing |
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