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Hardware

CM-5

Coming soon...

CM-4

The fourth hardware revision is a four-site stimulator like the CM-3, however, it is not magnet compatible. It uses the same underlying VCA technology as the CM-1 and CM-2, but the coils are 10 times stronger. Position control was also reintroduced for this model, making control over the probe tips more precise than any previous revision. Combined with the stronger coils, the CM-4 is capable of higher command signal fidelity even while driving a significant load for an extended period of time. The CM-4 currently leveraged by Dr. Tommerdahl's Laboratory for Neurosensory Diagnostics for all human somatosensory testing.

CM-3

cm3 hardware

The CM-3 changed the game once again by doubling the number of probe tips to 4 and achieving magnet compatibility. This enabled our collaborators to begin utilizing both FMRI and MEG with the device to perform real-time recording of the cortical activity elicited by sensory testing. Utilizing high-quality piezos instead of the VCAs, the CM-3 sacrifices position control for its magnet compatibility. Although the piezos are calibrated to optimal performance before leaving the lab, positional accuracy cannot be guaranteed in any open-loop system. Nonetheless, the CM-3 remains the most advanced magnet compatible four site vibrotactile stimulator on the market.

CM-2

In 2007, Cortical Metrics developed a revolutionary diganostic tool for neurological disorders. The CM-2 portable vibrotactile stimulator is capable of delivering two independent vibrations to dual skin sites simultaneously. Traditional vibrotactile stimulators require rack-mounted circuitry and bulky mounting arms to achieve what is now subpar positional accuracy. The CM-2 can record the position of its probe tips with 1um accuracy and operates at frequencies from 10-200Hz.