title: Directional and nondirectional coding of a spatio-temporal modulated stimulus.
mesh_terms: D000328:Adult; D005425:Flicker Fusion / Q000502:physiology*; D006801:Humans; D008297:Male; D009039:Motion Perception / Q000502:physiology*; D010364:Pattern Recognition, Visual / Q000502:physiology; D014792:Visual Acuity