Electrophysiological Correlates of Focused Attention on Low- and High-Distressed Tinnitus

https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0236521

Interesting. The full text is on the link above, together with images. I could not paste the full article because the thread does not support more than 20 images.

Electrophysiological correlates of focused attention on low- and high-distressed tinnitus

Conclusions
The most pronounced differences between concentrating on bothersome tinnitus and focusing on a one’s body part were found in the high-distress tinnitus patients, in the alpha frequency band (i.e. decreased frontally distributed low alpha power and reduced high alpha rhythm over the central and posterior areas). These effects might reflect higher cortical excitability or more active cognitive and emotional processing of tinnitus. Altered low alpha current density in the frontal and anterior cingulate cortices in the high tinnitus distress patients suggests sharing the attentional/emotional network with pain experience. Increased gamma power might reflect more active processing of bothersome tinnitus sensation whereas higher middle beta current density in the precuneus, observed in the tinnitus-focused condition compared to concentrating on the body, could be indicative for more attention resources allocated to troublesome tinnitus. Increased low beta (12–15 Hz) over the sensorimotor cortex and posterior middle and high beta (15–25 Hz) activity in the patients with high tinnitus-related distress, irrespectively of the condition, may reflect more thorough cognitive/emotional processing of sensations derived from the own body (not specifically associated with tinnitus).