Which Renaissance philosopher established the notion of mind body dualism?

The notion of mind-body dualism was established by the Renaissance philosopher René Descartes. He proposed that the mind and body are distinct entities, with the mind being an immaterial substance and the body a physical one. This idea laid the groundwork for modern philosophy and psychology, influencing how we understand consciousness and the relationship between mental and physical states. Descartes famously expressed this dualism in his statement, "Cogito, ergo sum" ("I think, therefore I am").