Is experimental catalepsy properly measured?

S. Ferré, T. Guix, G. Prat, F. Jane, M. Casas

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95 Citations (Scopus)


Following logarithmic transformation (ln) of total duration of haloperidol-induced catalepsy in the rat, measured by means of the bar test, a normalization of the results is achieved. With the help of this transformation we have been able to study what are probably the most important variables involved in the measuring of experimental catalepsy and to establish some criteria for a better use of such measures: 1) repeated measures of catalepsy have to be taken in order to avoid the stress-induced inhibition of catalepsy caused by the new experimental situation, 2) the dose of neuroleptic used has to be sufficiently low to permit the measurement of total or real duration of catalepsy between two determinations, and 3) the dose of neuroleptic has to be sufficiently high to prevent the development of a learned "pseudocatalepsy.". © 1990.
Original languageEnglish
Pages (from-to)753-757
JournalPharmacology, Biochemistry and Behavior
Issue number4
Publication statusPublished - 1 Jan 1990


  • "Pseudocatalepsy"
  • Adrenalectomy
  • Apomorphine
  • Catalepsy
  • Haloperidol
  • Repeated measures


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