The enhancement of occipital alpha abundance in human subjects with eyes open was studied. The initial acquisition, the effects of contingent reinforcement, and the extinction of the “alpha-producing response” were investigated. It was found that: a) subjects who received contingent feedback produced significantly more alpha than did yoked and nonreinforced controls; b) subjects acquired the alpha-producing response rapidly, reaching 80 per cent of asymptotic performance in 20 minutes; and c) no extinction of the response was noted. A discussion of the nature of the eyesopen alpha-producing response and the methodology of alpha-enhancement paradigms is presented.