ArticleGeroScience2026
Reduced structural connectivity in age-related hearing loss aligns with the sensory deprivation theory.
Article in GeroScience, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Age-related hearing loss (ARHL) may contribute to cognitive decline through structural degeneration and brain reorganization, as posited by the sensory deprivation theory. These processes can be characterized by topological changes, such as strengthening and weakening of structural connections between brain regions. Stronger connections are more relevant to reorganization, as reorganization is thought to support speech processing by recruiting additional brain networks as a compensatory mechanism. We investigated connectivity changes associated with ARHL to improve the understanding of the sensory deprivation theory. Similar to the lateralization of speech processing, we hypothesized that structural reorganization associated with ARHL would be most evident in the left hemisphere. We assessed whole-brain structural connectivity using 1.5 Tesla diffusion-weighted MRI and structural T1 images in 2402 participants (median age = 66.1 years, females = 54.7%) from the population-based Rotterdam Study. Pure-tone audiometry was performed, and pure-tone averages (PTAs), for different frequency ranges including PTA
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