The Cognitive Science of Religion commonly advances the view that religious beliefs emerge naturally via specific cognitive biases without cultural influence. From this perspective comes the claim that self-proclaimed atheists harbour traces of supernatural thinking. By exploring the potential influence of the cultural learning mechanism Credibility Enhancing Displays, which affirms beliefs, current disparities between studies involved in priming the implicit theism of atheists, might be reconciled. Eighty-eight university students were randomly assigned to either a religious or control prime condition. A (...) dictator game was completed to obtain an indication of pro-social behaviour. Lifetime theists reported significantly higher religiouscreds exposure levels than lifetime atheists, though not convert atheists. Conversely, lifetime atheists reported significantly lowercreds exposure scores than convert atheists. Convert atheists in the prime condition were significantly more pro-social than lifetime atheists. Additionally, higher scores on thecreds exposure measure equated to higherpsbin the religious condition than the control condition. The results are consistent with the view that supernatural belief formation is an interactive process between both context and content biases, and that in order to accurately test for implicit theism, past personal differences in exposure to religiouscreds should be considered. (shrink)