ISSN : 1229-0653
A brief history of crowding research is reviewed. Four major theories concerning crowding which are currently available are surveyed: information overload approach, behavioral constraint approach, Barker's ecological approach, and personal control approach. Especially, the control-attribution model of human crowding proposed by Schmidt and Keating (1979) is reviewed from the contexts of personal control, mediational factors and the consequences of the density and crowding. Furthermore, a new theoretical model is proposed which is a more advanced model than the other models. This model assumes human crowding as a sequential process and clarifies the physical and social conditions, mediating factors, and cumulative effects of crowding. In addition, applications and future perspectives of the model are discussed.