Steady state visually evoked potential

This article is about the visual response. For other steady-state evoked responses, see Steady-state evoked potentials.

In neurology and neuroscience research, the steady-state visually evoked potential (SSVEP) is an electrophysiological response that is phase-locked to a periodic visual stimulus. When the retina is excited by a visual stimulus at a constant rate—typically in the range of ~3.5–75 Hz—the brain generates oscillatory activity at the same frequency and its harmonics (and, in multi-frequency paradigms, at intermodulation frequencies). SSVEPs are most commonly measured with electroencephalography (EEG), owing to their high signal-to-noise ratio and robust frequency specificity.

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