Quantitative electroencephalography and tinnitus: a case study.

We report changes in quantitative electroencephalography activity in a male tinnitus patient when his tinnitus suddenly disappeared. Topographical illustration of the quantitative electroencephalography data showed beta foci in T3 and C4 with tinnitus, which resolved on spontaneous remission of the tinnitus. Comparison of the power spectra in the presence and absence of tinnitus revealed significant changes of a 16-Hz band. Also, a significant increase in alpha power was observed after remission of the tinnitus.