This thesis investigates the impact of Virtual Reality (VR) on cognitive functioning, specifically focusing on memory, attention, and decision-making. The research aims to understand how different VR experiences may affect these cognitive processes and whether they can be utilized to enhance cognitive abilities. To achieve this, the study will employ experimental designs that incorporate various VR scenarios to measure cognitive performance. Additionally, it will assess the potential benefits and challenges associated with long exposure to virtual environments. Overall, the findings are expected to contribute valuable insights into the application of VR in cognitive enhancement.