Transcranial Random Noise Stimulation generates a random waveform for neuro stimulation.

These are the settings you can alter in tRNS mode.

tRNS – mode settings

Current0.1 to 2.0mAThis is the maximum current used in the session
Duration1-40 minutesThe duration of the neuro stimulation session.
BipolarOFF / ONElectrodes change from anode to cathode
Max Voltage10,15,20,25,30,35,40,45,50,55,60VLimit the maximum voltage – can prevent target current being reached if impedance of electrodes and wave path too high.
ShamOFF / BLIND / ONSham mode current is started but then turned off. Blind sham it can be on or off.
Duration of real current in sham mode0, 10, 20, 30, 40, 50 secondsThe duration that real current is applied before sham mode turns current off
Random currentOFF / ONRandomise the current between 0 and the target current
Random FrequencyOFF / ONRandomise the frequency between two values
Frequency0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9Hz
1, 2, 3, 4, 5, 6, 7, 8, 9 Hz
10, 20, 30, 40, 50, 60, 70, 80, 90 Hz
100, 150, 200, 250, 300 Hz
The wave frequency in cycles per second
   

 

This is how to start a transcranial random noise stimulation from the foc.us v2

foc.us v2 take chargefoc.ud v2 tRNS modefoc.us v2 sham modefoc.us v2 max voltagefocus v2 trns durationfoc.us v2 trns currentfoc.us v2 bipolar trns modefoc.us tRNS random frequencyfoc.us v2 tRNS random currentfoc.us v2 tRNS min frequencyfoc.us v2 trns max freuqncyfoc.us v2 start tRNSfoc.us v2 trns graphingfoc.us v2 trns actual currentfoc.us v2 trns live current

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