Further aims of the study are 1) to compare the muscle activity of the tinnitus-patients with those from healthy controls, because till now no study investigated if tinnitus-patients effectively present higher muscle activity in head and shoulders than healthy people and 2) to evaluate the influence of the subjective illness perceptions on the intervention-outcome, because it is hypothesized that patients with more somatic illness perceptions benefit more from a psychophysiological intervention than patients with rather psychological illness perceptions.