1. The relationship among classically conditioned responses: Heart rate and skeletal behavior;Black,1972
2. State: Effect on conditioned and unconditioned heart rate responding;Brackbill,1977
3. Autonomic and behavioral responses of the rhesus monkey to emotional conditioning;Brady;Annals of the New York Academy of Science,1976
4. Campbell, B. A., & Ampuero, M. X. (in press). Emergence of behavioral and autonomic indices of conditioned fear in the developing rat. Behavioral Neuroscience.
5. The emergence of fear on the visual cliff;Campos,1978