Ben-Ze'ev was born and grew up on Kibbutz Ein Carmel, near Atlit. He is one of three brothers, the eldest of whom was killed in the Six Day War. Ben-Ze'ev earned a BA in philosophy and economics and an MA in philosophy at Haifa University, and went on to complete a Ph.D in philosophy at the prestigious University of Chicago. Ben-Ze'ev calls himself a philosopher of psychology. The difference between philosophy and psychology lies in the level of discussion, in the degree of abstraction, and in the generality of the discussion.
Psychology deals with very specific questions, while philosophy deals with more general questions.
I have more professional relations with psychologists than I do with philosophers. But the difference interests me not at all. Someone said once that the question of the discipline to which a work belongs interests only the university president and the librarian. The librarian has to know where to put the book on the shelf, and the president has to know to which department to send your paycheck. But from the point of view of content and borders, they are definitely much less clear.