Which statement describes photic stimulation as a seizure trigger?

• A. Photic stimulation never triggers seizures
• B. Photic stimulation is not a recognized trigger
• C. Photic stimulation can trigger seizures in susceptible individuals
• D. Photic stimulation always triggers a generalized seizure

Answer: (C)

Photic stimulation can provoke seizures in people who are susceptible, a phenomenon known as photosensitive epilepsy. This means that flashing or flickering lights can trigger a seizure for some individuals, often during EEG testing where specific light frequencies are used to identify sensitivity. It’s not universal—many people with seizures are not triggered by light—and even when it does provoke a seizure, the event isn’t guaranteed to be generalized; it can be focal or generalized depending on the person and the pattern of light. That’s why the statement describing photic stimulation as something that can trigger seizures in susceptible individuals is the best fit: it acknowledges both the reality of the trigger and the fact that it doesn’t affect everyone or every seizure type.