ACQUIRED CENTRALIZED TINNITUS
(ACT)
A term used to denote a type of *tinnitus (i.e. 'ringing in the ears') that is not congenital and for the mediation of which peripheral and central mechanisms are held responsible. ACT is conceptualized as a condition that is mediated and sustained by central neural networks, even though it may originally have been triggered by a peripheral condition such as an ear lesion.
References
Henry, J.A., Dennis, K.C., Schechter, M.A. (2005). General review of tinnitus: Prevalence, mechanisms, effects, and management. Journal of Speech, Language, and Hearing Research, 48, 1204-1235.