Researchers from Nanyang Technological University in Singapore report that indoor air pollutants from detergents, perfumes, aerosols and dyes can reduce creative performance. The findings are published in Scientific Reports.
The study enrolled 87 university students and spanned six weeks. Each week, participants attended three 40 minute sessions in which they read concise summaries of timely global challenges such as climate change, rising poverty, and the growing prevalence of mental health conditions. Following the readings, the participants were asked to brainstorm solutions by building a 3D model with LEGO bricks to visualize their strategies.
Throughout the program, indoor air quality was carefully controlled using air filtration systems. Researchers tracked levels of carbon dioxide, PM2.5 particles, and volatile organic compounds in the room air.
An independent panel evaluated the cube models that represented proposed solutions to the discussed issues. The judges observed that higher levels of VOCs correlated with simpler, less varied designs. When the air was cleaner, the LEGO constructions tended to be more intricate and multi-component. In addition, participants provided more detailed narratives during their project presentations when the air quality was improved.
VOC stands for volatile organic compounds, a broad group that includes hydrocarbons such as methane and ethylene along with various alcohols, ethers, and aldehydes. These compounds are used widely as solvents, in fragrances, and as ingredients in varnishes, paints, and cosmetics. VOCs appear in many decorative products and personal care items as well as detergents.
Earlier research explored the broader question of how air pollution impacts cognitive function and health outcomes, including the potential links to stroke and dementia. The current work adds to this literature by connecting indoor air quality to creative problem solving in a controlled setting.