The science behind the app.
Center for the Study of Emotion and Attention [CSEA-NIMH] (1999). The International Affective Picture System: Digitized photographs.Gainesville, FL: The Center for Research in Psychophysiology, University of Florida
Olson, M.A., Fazio, R.H. (2004). Trait inferences as a function of automatically-activated racial attitudes and motivation to control prejudiced reactions. Basic and Applied Social Psychology, 26(1), 1-11.
Batson, C. D., Chang, J., Orr, R., & Rowland, J. (2002). Empathy, attitudes and action: Can feeling for a member of a stigmatized group motivate one to help the group. Personality and Social Psychology Bulletin, 28(12), 1656-1666.
Greenwald, A.G., McGhee, D., Schwartz, J.L.K. (1998). Measuring individual differences in cognition: The implicit association task. Journal of Personality and Social Psychology, 74, 1469– 1480.
Fazio, R.H., Olson, M.A. (2003). Implicit measures in social cognition research: Their meaning and use. Annual Review of Psychology, 54, 297– 327.
Conner, T., & Barrett, L. F. (2005). Implicit Self-Attitudes Predict Spontaneous Affect in Daily Life. Emotion, 5(4), 476-488.
Batson, C. D. (1991). The altruism question: Toward a social-psychological answer. Hillsdale, NJ, US: Lawrence Erlbaum Associates, Inc.
Ap Dijksterhuis, Ad van Knippenberg, and Rob W. Holland (2014). Evaluating Behavior Priming Research: Three Observations and a Recommendation. Social Cognition: Vol. 32, Understanding Priming Effects in Social Psychology, pp. 196-208.
Bargh, J. A., Chen, M., Burrows, L. (1996). Automaticity of social behavior: Direct effects of trait construct and stereotype activation on action. Journal of Personality and Social Psychology, 71, 230–244.
Levy, B. (1996). Improving memory in old age through implicit self-stereotyping. Journal of Personality and Social Psychology, 71, 1092–1107.
Pichon, I., Boccato, G., & Saroglou, V. (2007). Nonconscious influences of religion on prosociality: A priming study. European Journal of Social Psychology, 37(5), 1032-1045.
Lang, P. J., Greenwald, M. K., Bradley, M. M., & Hamm, A. O. (1993). Looking at pictures: Affective, facial, visceral, and behavioral reactions. Psychophysiology, 30, 261–273.
Avero, P., & Calvo, M. (2006). Affective Priming with Pictures of Emotional Scenes: The Role of Perceptual Similarity and Category Relatedness. The Spanish Journal of Psychology, 9(1), 10-18.