“…Moreover, recent neuroscience studies imply that the moment-to-moment variability of tinnitus is related to brain oscillatory patterns like the alpha power in temporal regions (Schlee et al, 2014 ) and time-of-day (Basinou et al, 2017 ); circadian fluctuations have been shown, for example, in auditory pathway structures related to tinnitus like the cochlea (Meltser et al, 2014 ) and the inferior colliculus (Park et al, 2016 ). Another hint for a link between tinnitus and circadian rhythms is provided by findings of reduced tinnitus severity after intake of melatonin (e.g., Pirodda et al, 2010 ; Ajayi et al, 2014 ; Miroddi et al, 2015 ). Furthermore, pain, which shares many similarities with tinnitus (De Ridder et al, 2011 ; Rauschecker et al, 2015 ), has been found to underlie circadian variations (e.g., Strian et al, 1989 ; Gilron and Ghasemlou, 2014 ; Buttgereit et al, 2015 ).…”