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Failure of chlorpromazine to protect rats against the effects of shock administration during the second month of life

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Abstract

The administration of shock during 45–55 days after birth had a long lasting influence on the behavior of adult rats, as measured by three different tests. Shocked rats behaved more fearfully even 4 months after the infantile treatment. Chlorpromazine had no protective effect; on the contrary, it had by itself a deleterious influence on later behavior. These data suggest that the second month of life is a susceptible period, for inducing behavioral changes in adult life not only through aversive stimuli but also by the administration of pharmacological agents.

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References

  • Agrawal, H. C., Glisson, S. N., Himwich, W. A.: Changes in monoamines of rat brain during postnatal ontogeny. Biochim. biophys. Acta (Amst.) 130, 511–513 (1966).

    Google Scholar 

  • Broadhurst, P. L.: Determinants of emotionality in the rat. I. Situational factors. Brit. J. Psychol. 48, 1–12 (1957).

    Google Scholar 

  • Broadhurst, P. L.: Experiments in psychogenetics; In: Experiments in personality, ed. H. J. Eysenck (Routledge and Kegan), pp. 30–43. London 1960.

  • Carlini, E. A., Masur, J.: Development of aggressive behavior in rats by chronic administration of Cannabis sativa (marihuana). Life Sci. 8, 607–620 (1969).

    Google Scholar 

  • Denenberg, V. H., Carlson, P. V., Stephens, M. W.: Effects of infantile shock upon emotionality at weaning. J. comp. physiol. Psychol. 55, 819–820 (1962).

    Google Scholar 

  • Doty, B. A., Doty, L.: Chlorpromazine-produced response decrements resulting from chronic administration in infancy. Canad. J. Psychol. 17, 45–51 (1963).

    Google Scholar 

  • Gaitonde, M. K., Martenson, R. E.: Metabolism of highly basic proteins of rat brain during postnatal development. J. Neurochem. 17, 551–563 (1970).

    Google Scholar 

  • Gauron, E. F., Rowley, V. N.: Behavioral effects of a chronic drug administration experience in infancy. J. gen. Psychol. 112, 237–247 (1968).

    Google Scholar 

  • Gauron, E. F., Rowley, V. N.: The modifiability of infantile shock traumatization effects by contiguous drug administrations. J. gen. Psychol. 117, 51–56 (1970).

    Google Scholar 

  • Goldman, P. S.: The relationship between amount of stimulation in infancy and subsequent emotionality. Ann. N.Y. Acad. Sci. 159, 640–650 (1969).

    Google Scholar 

  • Henserson, N. D.: Effects of intensity and spacing of prior stimulation on later emotional behavior. J. comp. physiol. Psychol. 62, 441–448 (1966).

    Google Scholar 

  • Ivinskis, A.: A study of validity of open field measures. Aust. J. Psychol. 22, 175–183 (1970).

    Google Scholar 

  • Kumar, R.: Extinction of fear. II: Effects of chlordiazepoxide and chlorpromazine on fear and exploratory behaviour in rats. Psychopharmacologia (Berl.) 19, 297–312 (1971).

    Google Scholar 

  • Masur, J.: A técnica do campo-aberto como medida da resposta emocional de ratos. Influencia de drogas psicótropicas. Doctoral Thesis, submitted to Escola Paulista de Medicina, 1971.

  • Masur, J.: Sex differences in “emotionality” and behavior of rats in the open field. Comm. Behav. Biol. 7, 749–754 (1972).

    Google Scholar 

  • Mckenzie, G. M., Karpowicz, K.: Aggressive behavior in rats following apomorphine treatment and the effects of age. Pharmacologist 12, 207 (1970).

    Google Scholar 

  • Ulrich, R. E., Azrin, N. H.: Reflexive fighting in response to aversive stimulation. J. exp. Anal. Behav. 5, 511–520 (1962).

    Google Scholar 

  • Williamson, B., Coniglio, J. G.: The effects of pyridoxine deficiency and caloric restriction on lipids in the developing rat brain. J. Neurochem. 18, 267–276 (1971).

    Google Scholar 

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With a fellowship from FundaÇÃo de Amparo â Pesquisa do Estado de SÃo Paulo (FAPESP).

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Masur, J., MÄrtz, R.M.W. Failure of chlorpromazine to protect rats against the effects of shock administration during the second month of life. Psychopharmacologia 28, 301–307 (1973). https://doi.org/10.1007/BF00429310

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  • DOI: https://doi.org/10.1007/BF00429310

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