Anonymous (1979). Pain terms: A list with definitions and notes on usage. Recommended 
by the IASP. Pain, 6, 249. 
Azrin, N., and Holz, W.C. (1966). Punishment. In W.K. Honig (Ed.), Operant behavior: Areas 
of research and application (pp. 380-447). New York: Appleton-Century-Crofts. 
Baron, A. (1991). Avoidance and punishment. In I. Iversen and K.A. Lattal (Eds.), Techniques 
in the behavioral and neurological sciences (Vol. 6): Experimental analysis of behavior, Part 1 
(pp. 173-217). Amsterdam: Elsevier. 
Berger, T.W., and Thompson, R.F. (1978). Identification of pyramidal cells as the critical 
elements in hippocampal neuronal plasticity during learning. Proceedings of the National 
Academy oj Sciences USA, 75, 1572-1576. 
Campbell, B.A., and Church, R.M. (Eds.). (1969). Punishment and aversive behavior. New York: 
Appleton-Century-Crofts. 
Carlisle, H.J., and Stock, M.J. (1993). Thermoregulatory effects of beta adrenoceptors: Effects 
of selective agonists and the interaction of antagonists with isoproterenol and BRL-35135 in 
the cold. Journal of Pharmacology and Experimental Therapeutics, 266, 1446-1453. 
Crofton, K.M. (1992). Reflex modification and the assessment of sensory dysfunction. In H. 
Tilson and C. Mitchell (Eds.), N euro toxicology (pp. 181-211). New York: Raven Press. 
Dubner, R. (1994). Methods of assessing pain in animals. In R. Melzack and P.D. Wall (Eds.), 
Textbook of pain (pp. 293-302). Edinburgh; New York: Churchill-Livingstone. 
Dykstra, L.A., Schoenbaum, G.M., Yarbrough, ]., McNutt, R., and Chang, K.J. (1993). A novel 
delta opioid agonist, BW373U86, in squirrel monkeys responding under a schedule of shock 
titration. Journal of Pharmacology and Experimental Therapeutics, 267, 875-887. 
Flecknell, P.A. (1996). Laboratory animal anesthesia. London: Academic Press. 
Gebhart, G.F. (1994). Recognizing stress in rodents and rabbits. In S.M. Niemi, J.S. Venable, 
and H.N. Guttman (Eds.), Rodents and rabbits: Current research issues. Greenbelt, MD: 
Scientists Center for Animal Welfare. 
Gordon, C.J., Becker, P., and Ali, J.S. (1998). Behavioral thermoregulatory responses of single- 
and group-housed mice. Physiology and Behavior, 65, 255-262. 
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