The article discusses installation art and its potential contribution to a transdisciplinary research practice, in which not only artistic, but also aesthetic theoretical approaches could play a central role. However, as the article shows, this firstly requires a change in perspective concerning the way we approach art. Secondly, it entails changes to a common understanding of aesthetic theory and, thereby, philosophy. A term of central significance in this context is the notion of aesthesis. The article will illustrate these thoughts through the examples of Bruce Nauman, Ilya Kabakov, and Arnold Berleant.