Robust SSVEP dataset

Ten participants with normal or corrected-to-normal vision were seated approximately 60 cm from the display. Each participant completed 15 blocks, and each block consisted of 20 trials corresponding to 20 stimulus targets.

In each trial, a target was randomly cued for 1 s (via a red visual cue) to allow gaze shifting, followed by a 4-s stimulation period during which the target flickered, and participants were instructed to maintain continuous attention on the target while avoiding blinking and body movements. The stimulation frequencies ranged from 8.0 Hz to 15.6 Hz with a 0.4 Hz step, using sinusoidal flicker with joint phase coding. EEG data were acquired using a Neuracle system from nine channels (O1, Oz, O2, PO3, POz, PO4, PO7, PO8, Pz).