Vocal changes in songbirds may help predict age-related disorders in people, neuroscientists suggest

University of Arizona neuroscientists studying the brains of songbirds have found that aging alters the gene expressions that control the birds' song. The finding could lead to earlier diagnoses and better treatments for human neurodegenerative disorders such as Parkinson's disease and Alzheimer's disease, which are known to hinder vocal production in their early stages.

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