Measuring ‘neuronal oscillations for communication’ in the human, with electrocorticography (ECoG)

The same signals that are measured noninvasely with scalp EEG can be measured from the surface of the cortex, often as one stage in the surgical treatment of epilepsy. This introduction to the methods of electrocorticography (ECoG), from Bradley Voytek, dynamically illustrates the methodological nuts-and-bolts of this technique, and also captures the excitement and buzz (pun intended) surrounding by this method. In particular, it nicely illustrates how principles of oscillatory dynamics in the LFP are being leveraged to understand the workings of the human brain. The techniques for assessing cross frequency coupling that are introduced here will feature prominently in other narrated videos in this compendium, including ones that describe research on face perception, cognitive control, and language.

For more info/content, please visit: https://postlab.psych.wisc.edu/cog-ne...

Relevant papers:
Voytek, B., Canolty, R. T., Shestyuk, A., Crone, N., Parvizi, J., & Knight, R. T. (2010). Shifts in gamma phase–amplitude coupling frequency from theta to alpha over posterior cortex during visual tasks. Frontiers in human neuroscience, 4, 191.

Voytek, B., Secundo, L., Bidet-Caulet, A., Scabini, D., Stiver, S. I., Gean, A. D., ... & Knight, R. T. (2010). Hemicraniectomy: a new model for human electrophysiology with high spatio-temporal resolution. Journal of cognitive neuroscience, 22(11), 2491-2502.

Fries, P. (2005). A mechanism for cognitive dynamics: neuronal communication through neuronal coherence. Trends in cognitive sciences, 9(10), 474-480.

Voytek, B., D'esposito, M., Crone, N., & Knight, R. T. (2013). A method for event-related phase/amplitude coupling. Neuroimage, 64, 416-424.

Canolty, R. T., Edwards, E., Dalal, S. S., Soltani, M., Nagarajan, S. S., Kirsch, H. E., ... & Knight, R. T. (2006). High gamma power is phase-locked to theta oscillations in human neocortex. science, 313(5793), 1626-1628.

Voytek, B., Kramer, M. A., Case, J., Lepage, K. Q., Tempesta, Z. R., Knight, R. T., & Gazzaley, A. (2015). Age-related changes in 1/f neural electrophysiological noise. Journal of Neuroscience, 35(38), 13257-13265.