This foundational text by Robert Sessions Woodworth establishes psychology as the scientific study of mental life and behavior. The author addresses the core problem of bridging objective physiological processes with subjective consciousness, showing how human activity stems from stimulus-response mechanisms. The argument develops from the simplest biological units, such as reflex arcs and neurone synapses, to complex motor reactions and higher brain centers in the cerebral cortex.
The text details the structural divisions of the nervous system, including the spinal cord, brain stem, and cerebral hemispheres, explaining how lower reflex centers coordinate actions like breathing and winking while higher centers govern voluntary movement and speech. It thoroughly analyzes native traits, hereditary instincts, and primary emotions, categorizing them into responses to organic needs, social interactions, and play activities.
Moving beyond pure biology, Woodworth explores the role of motives, emotional states, and feelings like pleasantness and unpleasantness in driving human behavior. The argument progresses through the processes of attention, intelligence measurement, habit formation, and memory retention, demonstrating how organisms adapt to their environments.
The study culminates in examinations of higher mental processes, including perception, reasoning, imagination, and will. Throughout the work, the author maintains that mental phenomena are active responses of the living individual rather than passive receptions, offering a comprehensive framework for understanding human nature.