Learning and retention of a shock avoidance task by rat using deafferented hind limb

Steven McLoon, A. A. Buerger

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

Learning and retention of a shock avoidance task were studied in the absence of proprioceptive or other topographic feedback. Rats with a deafferented hind limb were trained using the instrumental shock avoidance and retention paradigm of Horridge. Rats received shock whenever they lowered an electrode attached to a deafferented hind foot into an electrolyte bath; yoked-control rats received the shocks to a deafferented hind food along with the experimental animals. Experimental animals consistently held their feet above the electrolyte (p<0.01). During the early minutes of the second phase (a testing situation, in which the experimental and control animals were both shocked for leg lowering) the experimentals received fewer shocks than the controls (p<0.001); the controls eventually withheld their feet (p<0.001). These results indicate that rats with deafferented hind limbs provide a simple system for the study of learning and retention in the absence of proprioceptive or other topographic feedback.

Original languageEnglish (US)
Pages (from-to)39-43
Number of pages5
JournalPhysiology and Behavior
Volume12
Issue number1
DOIs
StatePublished - Jan 1974
Externally publishedYes

Keywords

  • Deafferentation
  • Horridge paradigm
  • Learning and retention
  • Shock avoidance task

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