K. H.  Preller, Herdener, M., Schilbach, L., Stämpfli, P., Hulka, L. M., Vonmoos, M., Ingold, N., Vogeley, K., Tobler, P. N., Seifritz, E., and Quednow, B. B., ?Functional Changes of the Reward System Underlie Blunted Response to Social Gaze in Cocaine Users?, vol. 111, pp. 2842-2847, 2014.