Efficient evacuation is an important task, since it can save people's lives. In Hungary, to design evacuation, mostly standardized calculations are used, which take into account, for example, the number and age of the people, but not the human behaviour. Human behaviour can be included in agent-based simulations. In this paper, the evacuation simulation of a classroom taking into account cognitive behaviour like panic and reaction time is presented. Moreover, based on the cognitive aspects of agent-based simulations, a new architecture is proposed, which can be used to further develop the presented simulations.