This article aims to show the existing collaborations between Environmental Psychology and the diverse people-environment studies, based on the works presented in the Congress IAPS-16 (Paris, 2000). In the relation between transdisciplinarity, pluridisciplinarity and interdisciplinarity, it understands that scientific functioning is necessarily mono-disciplinary, while intervention in people-environment relations involves a complex dynamics. As for intervention (socio-environmental handling), it distinguishes two types of functioning: interdisciplinary and transdisciplinary. It concludes that only the knowledge that integrates the several disciplinary approaches into transdisciplinary approaches will provide an adequate answer to the challenges of this new century.
Environmental psychology; Interdisciplinary research; Interdisciplinarity; Transdisciplinarity
