Pallidal stimulation in rats: Facilitation of stimulation-induced chewing by food and water deprivation

I. Szabó, J. S. Sarkisian, L. Lénárd, L. Németh

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Electrical stimulation of the globus pallidus evoked chewing, rhythmic swallowing and quickly repeated movements of the contralateral foreleg directed toward the mouth. These stimulation-induced movements were more intense in rats deprived of food and/or water than in satiated animals. The facilitatory effect of water deprivation was less intense than that of food deprivation. Double-pulse stimulation experiments indicated that the evoked oral-ingestive motor responses are due to local stimulation of pre- and postsynaptic pallidal axons rather than stimulation of the adjacent axons of passage (e.g. descending cortico-bulbar fibers from the cortical jaw motor area). These findings support the view that the globus pallidus is specifically implicated in the control of oral-ingestive behaviours, and suggest that pallidal aphagia and adipsia may be a transient motor incapability to execute highly coordinated species-specific consummatory motor activities such as eating and drinking.

Original languageEnglish
Pages (from-to)361-368
Number of pages8
JournalPhysiology and Behavior
Volume18
Issue number3
DOIs
Publication statusPublished - 1977

Fingerprint

Water Deprivation
Food Deprivation
Globus Pallidus
Mastication
Axons
Motor Cortex
Deglutition
Jaw
Electric Stimulation
Drinking
Mouth
Motor Activity
Eating
Food
Water

Keywords

  • Adipsia
  • Aphagia
  • Consummatory motor behavior
  • Double-pulse stimulation technique
  • Electrical stimulation
  • Food deprivation
  • Globus pallidus
  • Water deprivation

ASJC Scopus subject areas

  • Physiology (medical)
  • Behavioral Neuroscience

Cite this

Pallidal stimulation in rats : Facilitation of stimulation-induced chewing by food and water deprivation. / Szabó, I.; Sarkisian, J. S.; Lénárd, L.; Németh, L.

In: Physiology and Behavior, Vol. 18, No. 3, 1977, p. 361-368.

Research output: Contribution to journalArticle

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