*Proceeding Paper* **The Influence of Brain Activity on the Interactive Process through Biofeedback Mechanisms in Virtual Reality Environments †**

**Rita Costa 1,‡, Paulo Veloso Gomes 2,\*,‡, António Correia 2,‡, António Marques 2,‡ and Javier Pereira 3,‡**


**Abstract:** This work focuses on the development of a software link interface tool between the Looxid Link Device coupled to the HTC Vive Pro VR HeadSets and the Unity platform, to generate real-time interactivity in virtual reality applications. The software incorporates a dynamic and parameterizable algorithm to be used as a core-engine in the real-time Biofeedback process, recognizing the values of the biological signals registered in each of the EEG channels of the Looxid Link device. The values of EEG frequencies detected in real time can be used to generate elements of interactivity, with different frequencies and intensities.

**Keywords:** biofeedback; immersive environments; electroencephalography; virtual reality
