Abstract
Footshock given immediately after rats are placed in a strange inescapable environment produces no diminution in movement. However, if a brief exploration period is allowed before shock, freezing is the dominant defensive behavior seen. Thus, the topographical similarity of postshock reactions to unconditioned defensive behaviors elicited by a cat also involves a similar flight-to-freezing shift when the subject is permitted prior familiarization with the inescapable threat situation.
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Blanchard, R. J., Fukunaga, K. K., & Blanchard, D. C. Environmental control of defensive reactions to a cat. Bulletin of the Psychonomic Society, 1976, in press.
Blanchard, R. J., & Blanchard, D. C. Defensive reactions in the albino rat. Learning and Motivation, 1971, 2, 351–362.
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Blanchard, R.J., Fukunaga, K.K. & Blanchard, D.C. Environmental control of defensive reactions to footshock. Bull. Psychon. Soc. 8, 129–130 (1976). https://doi.org/10.3758/BF03335103
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DOI: https://doi.org/10.3758/BF03335103