A synthesis of classic and modern neurobehavioral literature dealing with the principles by which complex, purposive, and intelligent behavior is generated, this book features: * papers by C.S. Sherrington, E. von Holst, D.M. Wilson, G. Fraenkel, H. Mittelstaedt, and P. Weiss * clear descriptions of three types of elementary units of behavior -- the reflex, the oscillator, and the servomechanism * a review of the diverse manifestations of hierarchical...