Visual Patterns that Elicit Gamma Oscillation (IMAGE)

Cell Press

Visual Patterns that Elicit Gamma Oscillation

Caption

This figure depicts how that same visual patterns that elicit a specific type of brainwave (gamma oscillation) in healthy visual cortex can also trigger seizures in patients with photosensitive epilepsy. Left top: large, high-contrast grating patterns induce gamma oscillations in visual cortex. Right top: the same patterns that elicit gamma oscillations are also the most likely to evoke epileptiform activity and seizures in patients with photosensitive epilepsy. Left bottom: noise patterns do not elicit large gamma oscillations and are also unlikely to trigger epileptiform activity.

Credit

Hermes et al.

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