Targeted TDCS Intervention for Internet Gaming Disorder

The stimulation pattern for the true intervention was that the current level ramped up from 0 to 2 mA for the first 10 seconds of stimulation, then maintained at 2 mA for 19 minutes and 40 seconds, and then ramped down from 2 mA to 0 mA for the last 10 seconds, all over a 20-minute period.

In contrast to the active intervention, the sham intervention consisted of a current ramp from 0mA to 2mA for the first 20 seconds of stimulus onset, followed by a ramp down to 0mA. the current was maintained at 0mA for 19 minutes and 20 seconds, and then the current was ramped from 0mA to 2mA for the last 20 seconds, followed by a ramp down to 0mA. The entire procedure lasted the same as the active intervention, which lasted for 20 minutes.