Any ActiveTwo EEG System from Biosemi can be upgraded to include analogue input channels. Input used is on the front of the ADC box labeled ERGO in place of AUX2 or AUX3 (which ever is available). Upgrade includes: ERGO 2/4 input channels, wiring and AUX connector + label.
Caution: Input only non mains driven sensors, such as Respiration Belt, Microphone, various switches, etc.
Please note: ERGO can only be implemented if either AUX2 or AUX3 are unused. In case of AUX2 or AUX3 being occupied by GSR, we would replace the GSR module with a combined GSR/ERGO module.