Using Biophilic Illusions to Promote Nature Connectedness and Occupant Wellbeing in the Built Environment

Extensive empirical research validates the human need for a connection to nature, as evidenced by the correlation between exposure to natural elements and positive physiological and psychological wellbeing benefits. Yet, indoor living and the prevalence of windowless spaces limit nature connection. This study introduces "biophilic illusions,"technological interventions for indoor environments that lack a direct connection with nature. Biophilic illusions augment building interiors using elements from ambient nature such as shifting sunlight, swaying tree shadows, and weather reflections, aiming to animate spaces with real-time nature cues and subtle multi-sensory stimulation to promote occupant wellbeing and connectedness to nature. This technology has the potential to contribute cost-effective, adaptable interventions for existing buildings or new construction. This paper introduces the system architecture, which includes devices, sensors, actuators, and programming for four biophilic design interventions: wind-animated tree shadows, sun-animated lighting, wind-animated airflow, and location-responsive sounds. Preliminary results from initial testing of low-fidelity digital mockups of three of these biophilic illusions are described, highlighting their feasibility and potential to foster nature connectedness and enhance wellbeing.