Beginnings : ventricular psychology

From Platonic and Galenic roots, the first well developed ventricular theory of brain function is due to Bishop Nemesius, fourth century C.E. Although more interested in the Christian concept of soul, St. Augustine, too addressed the question of the location of the soul, a problem that has endured in various guises to the present day. Other notable contributions to ventricular psychology are the ninth century C.E. Arabic writer, Qusta ibn Lūqā, and an early European medical text written by the twelfth century C.E. author, Nicolai the Physician. By the time of Albertus Magnus, so-called medieval cell doctrine was a well-developed model of brain function. By the sixteenth century, Vesalius no longer understands the ventricles to be imaginary cavities designed to provide a physical basis for faculty psychology but as fluid-filled spaces in the brain whose function is yet to be determined