Michel Foucault

I think a very important person for psychology’s field is Michel Foucault, he is not a psychologist but he developed significant contributions considered and used by social psychology, especially in its most critical current and legal psychology. Michel Foucault was a french philosopher, historian, critic and sociologist.

He held a chair at the Collège de France with the title “History of Systems of Thought", and also taught at the University of California, Berkeley. Foucault is best known for his critical studies of social institutions, most notably psychiatry, medicine, the human sciences, and the prison system, as well as for his work on the history of human sexuality. Foucault's work on power, and the relationships between power, knowledge, and discourse has been widely discussed. In the 1960s Foucault was often associated with the structuralist movement. Foucault later distanced himself from structuralism. While Foucault was always typically characterized by the post-structuralist and postmodernist labels, he personally rejected the postmodernist and post-structuralist labels, preferring to classify his thought as a critical history of modernity, rooted in Kant.

Although Foucault is not defined as a psychologist I consider him the best in thinking about power relations in various fields, and whose principles have been widely used by social psychology in general. I like Foucault because he proposed a new way of understanding knowledge, subjectivity and social structure among others.
I hope you like learning more about him, greetings!