Brain Stimulation

CCEPs

To map connectivity in the brain at rest, we use a technique called cortico-cortical evoked potentials (CCEPs), which involves passing a small amount of current through a pair of the patient’s intracranial electrodes, and measuring the evoked response in other electrodes across the brain. This allows us to examine the direction of connectivity between different areas.

Selected papers using CCEPs:

Electrical Stimulation Mapping (ESM)

As part of the standard of care, all patients undergo high-frequency electrical stimulation of implanted electrodes to localize important brain functions such as language and vision. This process ensures that areas involved in these functions are not removed during resective surgery, but the identification of functional areas is also useful for research.

Selected papers using ESM: