Principles of Physiological Psychology

…in the history of psychology, Grundzüge der physiologischen Psychologie, 2 vol. (1873–74; 3 vol., 6th ed., 1908–11; Principles of Physiological Psychology). The Grundzüge advanced a system of psychology that sought to investigate the immediate experiences of consciousness, including sensations, feelings, volitions, and ideas; it also contained the concept of apperception,…