1. Conger, J. J., Sawrey, W.L., & Turrell, E. S. 1958 The role of social experience in the production of gastric ulcers in hooded rats placed in a conflict situation. Journal of Abnormal and Social Psychology, 57, 214-220.
2. Conner, R. L., Vernikos-Danellis, J., & Levine, S. 1971 Stress, fighting and neuroendocrine function. Nature, 234, 564-566.
3. Guile, M. N., & McCutcheon, N. B. 1980 Prepared responses and gastric lesions in rats. Physiological Psychology, 8, 480-482.
4. Hamamura, Y. 1978 Reduction of conditioned suppression by shock-induced fighting in rats. Annual of Animal Psychology, 28, 133-138.(In Japanese)
5. Hamamura, Y. 1982 Does punishment for biting attenuate gastric lesions in the rat? Japanese Psychological Research, 24, 195-199.