32-channel EEG system Geodesic

64-channel128-channel256-channel

Geodesic Transcranial Electrical Neuromodulation 200 (GTEN 200)* Record HD EEG and deliver current simultaneously using the same Geodesic Sensor Net A single integrated platform featuring: Options for 32, 64, 128, or 256 channel sensor nets allowing any electrodes to serve as anodes, cathodes or recording electrodes Up to 2 mA current intensity for custom HD tDCS, tACS, tPCS, and tRNS protocols Individualized head modeling and a library of age-matched atlases Source localization tools (LORETA, sLORETA, LAURA) Software Developer’s Kit (SDK) included complimentary Robust planning tools to optimize for each individual Create an MR-based individualized head model or select an age-matched atlas Account for intersubject differences from the start Design your custom stimulation protocols in one of three ways: Manually select electrodes and current level Choose a region of interest within the brain to target Use EEG-based source localization to guide the stimulation paradigm Localize with confidence High density, whole head electrode coverage and finite difference method head models allow for highly accurate source localization Apply the reciprocity theorem to align stimulation with physiology A cortical source’s scalp voltage projection is the same as the scalp stimulation required to stimulate/modulate that cortical source 1 Maximize flexibility with a larger array of montages Localize targeting by selecting, combining custom stimulation arrays Up to 256 channels of EEG, of which 190 channels can be used for stimulation, with spatial selectivity to stimulate multiple anodal/cathodal pairs at a given time (minimum of 10 pairs needed to achieve maximum current)