Neurophysiological correlates of residual inhibition in tinnitus: Hints for trait-like EEG power spectra

• DOI: 10.1016/j.clinph.2021.03.038
• Publication Date: 2021-04-22T18:08:26Z
• Authors: S. Schoisswohl; M. Schecklmann; B. Langguth; W. Schlee; P. Neff
• Keywords: Trait; Neurophysiology

To investigate oscillatory brain activity changes following acoustic stimulation in tinnitus and whether these are associated with behavioral measures of loudness. Moreover, differences ongoing between individuals without residual inhibition (RI) examined (responders vs. non-responders). Three different types noise stimuli were administered for 45 patients. Subjects resting state was recorded before after via EEG alongside subjective measurements Delta, theta gamma band power increased, whereas alpha beta decreased from pre to post stimulation. Acoustic responders exhibited reduced a trend enhanced the latter localized right inferior temporal gyrus. Post stimulation, experiencing RI showed higher theta, peak difference superior Neither correlations nor stimulus-specific present. Our observations might be indicative trait-specific forms signatures subsets population related suppression. Results insights not only useful understand basic neural mechanisms behind but also valuable general models tinnitus.