Interactive art can be seen as a dynamic concept that is in a constant state of flux and evolution as technology provides new and different ways to allow artists to engage viewers and transform them into active participants in the creation of the art itself. As technology permits the nature of interaction and collaboration to evolve, the interactive nature of the art posits challenges to the traditional roles of artist and viewer and transforms that relationship to one of collaborators. The research practice for this thesis centres on the creation of interactive computer systems utilising EEG technology that collects the brainwave data of participants, which is then rearranged or reinterpreted through a system I have created to allow the participant to have an active role in the creation of the art. This interactive system was created through a reconceptualisation of the precepts governing interaction utilized by Allan Kaprow in the ‘Happenings’. The research practice also focuses on other theories for facilitating and enhancing the nature of the interaction including art as experience, play, affect, and magical thinking, thereby allowing the interaction between artist/system and participant to be the true nature of the art, or the gestalt of the work.