Trading faces.
Hurlbert
A
A
D001921:Brain / Q000502:physiology*; D006801:Humans; D007088:Illusions / Q000502:physiology; D008297:Male; D008568:Memory / Q000502:physiology*; D009483:Neuropsychological Tests; D010364:Pattern Recognition, Visual / Q000502:physiology*; D021641:Recognition, Psychology / Q000502:physiology*