1500 – 1558
Gómez Pereira (c. 1500–c. 1558) was a Spanish physician and natural philosopher whose 1554 work Antoniana Margarita advanced bold mechanistic and dualist theses nearly a century before Descartes. He argued that animals lack true sensation and are purely mechanical automata, while humans alone possess a rational soul that transcends corporeal processes. His synthesis of late-Scholastic method with proto-mechanist conclusions makes him a significant transitional figure in early modern philosophy of mind.
Argued in Antoniana Margarita (1554) that animals are automata lacking genuine sensation — anticipating Cartesian mechanism by ~90 years
Developed an early dualist account distinguishing rational soul from mechanical bodily processes in humans
Defended the immateriality and immortality of the human soul on philosophical rather than purely theological grounds
Challenged Aristotelian faculty psychology, particularly the doctrine of animal sentience
Influenced subsequent debates on mechanism, animal souls, and mind-body relations in early modern Spain and beyond