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Related Experiment Videos

Trialwise tracking method for measuring drug-affected sensory threshold changes in animals.

K Ando1, K Takada

  • 1Department of Psychopharmacology, Central Institute for Experimental Animals, Kawasaki, Japan.

Neurobehavioral Toxicology
|January 1, 1979
PubMed
Summary

This study demonstrates how drugs like quinidine, kanamycin, pilocarpine, and LSD-25 affect sensory perception thresholds in rats and rhesus monkeys. The findings highlight the sensitivity of behavioral methods in assessing drug effects on sensory systems.

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Area of Science:

  • Neuroscience
  • Pharmacology
  • Behavioral Science

Background:

  • Understanding sensory perception thresholds is crucial for evaluating the effects of various substances on the nervous system.
  • Behavioral baselines are essential for accurately measuring sensory changes induced by pharmacological agents.

Purpose of the Study:

  • To investigate the impact of specific drugs on auditory and visual sensory thresholds in animal models.
  • To assess the efficacy of a behavioral method for tracking drug-induced sensory alterations.

Main Methods:

  • Rats and rhesus monkeys were trained using a multiple schedule involving food and shock presentations.
  • A conditioned suppression paradigm was employed, with stimulus intensity adjusted to determine sensory thresholds.
  • Drugs administered included quinidine, kanamycin, pilocarpine, and LSD-25.

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Main Results:

  • Quinidine and kanamycin increased auditory thresholds in rats.
  • Pilocarpine and LSD-25 elevated visual thresholds in rhesus monkeys.
  • The behavioral tracking method proved sensitive and effective in detecting selective drug effects.

Conclusions:

  • The study successfully demonstrated drug-specific alterations in sensory perception thresholds in rats and rhesus monkeys.
  • The employed behavioral methodology is a sensitive and practical tool for pharmacological research on sensory systems.