Employing the dynamical systems framework, we study the effects of intrinsic motivation on the dynamics of the learning processes. The intrinsic motivation here is the one’s desire to learn not because it may cause some benefits in future, but due to the inherent joy obtained by the very process of learning. We study a simple example of a single agent adapting to unknown environment; the agent is biased by the desire to select the actions she has little information about. We show that intrinsic motivation may cause the instability of the learning process that is stable in the case of rational agent. Therefore, we suggest that the effects of human intrinsic motivation in particular and the irrationality in general may be of exceptional importance in complex sociopsychological systems and deserve much attention in the formal models of such systems.