Announcing tDCS Shield Stretch Goal
At OpenBCI, we are cautiously optimistic about the beneficial potential of transcranial direct-current stimulation (tDCS). As always, safety is our number one priority. We hope to educate the public about proper tDCS techniques, and to offer a new, open-source platform for studying the effects of tDCS on electrical brain activity. If we hit the $160,000 stretch goal, we will provide the option to pre-order a tDCS Shield that is compatible with both the Ganglion and our 32bit board. In addition, we will design custom Ultracortex node mounts for tDCS-specific electrodes. Anybody with the complete Ganglion+Ultracortex+tDCS system will be able to perform simultaneous neurostimulation and neurorecording, trying out different electrode configurations and creating custom “closed-loop” brain-computer interface systems.
tDCS is a type of neurostimulation in which a low-amperage direct current is passed through the scalp from a positively charged electrode (anode) to a negatively charged electrode (cathode). Some research has claimed that tDCS can increase cognitive performance and assist in the treatment of cognitive disorders such as depression and ADHD. Other studies have reported that there is no statistically conclusive evidence that tDCS has any net cognitive effect. Despite the effects of tDCS being critically debated, it is widely accepted that tDCS—when adhering to safety protocols and done in a controlled manner—is a safe method of brain stimulation.
Spread the word, and help us double our goal!
OpenBCI tDCS Shield Tech Specs:
- Operating Voltage: 12V
- Variable Current Range: 0-2 mA (manually and digitally controllable)
- On-Shield Current Sensing
- Compatible with The Ganglion & 32bit Board
- Compatible with tDCS-specific Ultracortex electrode mounts
- On-shield LED bargraph for current value visualization
- Open Hardware Design
Additional tDCS Resources:
Once again, thank you for the amazing support.
All the best,
The OpenBCI Team