ABSTRACT
A recent development in the study of learning and behavior is the emergence of a behavior systems approach, based on both the laboratory and field behavior of animals (Domjan, 1994; Fanselow, 1994; Hogan, 1994; Shettleworth, 1994; Timberlake, 1994). The behavior systems approach combines an ethologist’s emphasis on the evolutionary foundation of the form and control of functional behavior with a psychologist’s concern with the role of learning in creating new responses and controlling stimuli.
