Electrocorticography, or ECoG, involves recording electrical impulses directly from the surface of the human brain. The ECoG recordings our lab works with are from patients with epilepsy. These patients have had intracranial electrodes placed on their brain surface, or in deep structures, to locate the source of their seizures before surgery.
For each patient, we locate the electrodes using a combination of post- and pre-implant structural MRIs, and a post-implant CT scan.
Once the electrodes are located, we can analyze recordings from them to find out more about the activity of the brain at rest, during natural behavior, and during experimental tasks.
Selected papers using ECoG:
- Mechanisms Underlying Selective Neuronal Tracking of Attended Speech at a ‘‘Cocktail Party’’ (Neuron 2013)
- Dominant frequencies of resting human brain activity as measured by the electrocorticogram (Neuroimage 2013)