Table 2.
References | Study type | Intervention | Sample size | Stimulation area | Intensity (mA) | Stimulation (min) | Frequency (Hz) | Scheme | Outcome |
---|---|---|---|---|---|---|---|---|---|
Claes et al.82 | Cohort | tACS, tRNS | 228 | AC | 2 | 20 | tACS (6–13) | 8 sessions | Negative |
tRNS (0.1–100) | |||||||||
Vanneste et al.55 | RCT | tACS | 111 | AC | 1.5 | 20 | tACS (6–13) tRNS (0.1–100) |
1 session | Negative |
tDCS | |||||||||
tRNS | |||||||||
Vanneste et al.60 | RCT | tDCS, tACS | 50 | DLPFC | 2 | 20 | tACS (6–13) | 1 session | Negative |
(with sham control) |
AC, auditory cortex; DLPFC, dorsolateral prefrontal cortex; RCT, randomized controlled trial; tACS, transcranial alternating current stimulation; tDCS, transcranial direct current stimulation; tRNS, transcranial random noise stimulation.