Abstract
Tinnitus is an auditory sensation in the absence of actual external stimulation. Different clinical interventions are used in tinnitus treatment, but only few patients respond to available options. The lack of successful tinnitus treatment is partly due to the limited knowledge about the mechanisms underlying tinnitus. Recently, the auditory part of the thalamus has gained attention as a central structure in the neuropathophysiology of tinnitus. Increased thalamic spontaneous firing rate, bursting activity and oscillations, alongside an increase of GABAergic tonic inhibition have been shown in the auditory thalamus in animal models of tinnitus. In addition, clinical neuroimaging studies have shown structural and functional thalamic changes with tinnitus. This review provides a systematic overview and discussion of these observations that support a central role of the auditory thalamus in tinnitus. Based on this approach, a neuromodulative treatment option for tinnitus is proposed.
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