Head-to-Head Comparison of Transcranial Random Noise Stimulation, Transcranial AC Stimulation, and Transcranial DC Stimulation for Tinnitus.
is the perception of a sound in the absence of an external sound
stimulus. This phantom sound has been related to plastic changes and
hyperactivity in the auditory cortex. Different neuromodulation
techniques such as transcranial magnetic stimulation and transcranial
direct current stimulation (tDCS) have been used in an attempt to modify
local and distant neuroplasticity as to reduce tinnitus symptoms.
Recently, two techniques of pulsed electrical stimulation using weak
electrical currents - transcranial alternating current stimulation
(tACS) and transcranial random noise stimulation (tRNS) - have also
shown significant neuromodulatory effects. In the present study we
conducted the first head-to-head comparison of three different
transcranial electrical stimulation (tES) techniques, namely tDCS, tACS,
and tRNS in 111 tinnitus patients by placing the electrodes overlying
the auditory cortex bilaterally. The results demonstrated that tRNS
induced the larger transient suppressive effect on the tinnitus loudness
and the tinnitus related distress as compared to tDCS and tACS. Both
tDCS and tACS induced small and non-significant effects on tinnitus
symptoms, supporting the superior effects of tRNS as a method for
All right... So after having said that tDCS and tACS were more ore less promising now it is the tRNS which is superior and the two precedent methods which give "small and non-significant effects". I know there no contradiction between saying "method X warrants further examination" and then conclude by "After all, method Y show better results, x isn't so great" but it's funny to read.
I just have the abstract so no figures. Now way of telling what they consider a more significant relief.