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“Distressed aging”: the differences in brain activity between early- and late-onset tinnitus.

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“Distressed aging”: the differences in brain activity between early- and late-onset tinnitus.

Neurobiol Aging. 2013 Feb 15;

Authors: Song JJ, De Ridder D, Schlee W, Van de Heyning P, Vanneste S

Recent findings regarding different characteristics according to the age of tinnitus onset prompted us to conduct a study on the differences in tinnitus-related neural correlates between late-onset tinnitus (LOT; mean onset age, 60.4 years) and early-onset tinnitus (EOT; mean onset age, 29.7 years) groups. Hence, we collected quantitative electroencephalography findings of 29 participants with LOT and 30 with EOT, and from 59 controls. We then compared the results between the 2 groups and between the tinnitus groups and age- and sex-matched control groups using resting state electroencephalography source-localized activity and connectivity analyses. Compared with the EOT and older control groups, the LOT group demonstrated increased localized activity and functional connectivity in components of previously described tinnitus distress networks, and the default mode and intrinsic alertness networks, such as the prefrontal cortices, dorsal anterior cingulate cortex, and insula. The current findings of intrinsic differences in tinnitus-related neural activity between the LOT and EOT groups might be applicable for planning individualized treatment modalities according to age of onset. Moreover, differences with regard to the age of tinnitus onset might be a milestone for future studies on onset-related differences in other similar pathologies, such as pain or depression.

PMID: 23415838 [PubMed – as supplied by publisher]

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