November 13, 2024 Hertz, U., Köster, R., Janssen, M.A. and Leibo, J.Z., 2025. Beyond the matrix: Experimental approaches to studying cognitive agents in social-ecological systems. Cognition, 254, p.105993. Home » Hertz, U., Köster, R., Janssen, M.A. and Leibo, J.Z., 2025. Beyond the matrix: Experimental approaches to studying cognitive agents in social-ecological systems. Cognition, 254, p.105993.