'Mouth-feeding' in monkeys after sensorimotor system lesions

An analysis based upon the Denny-Brown collection

Joel Vilensky, Robert J. Morecraft, Sid Gilman, Jennifer A. Cook

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Utilizing the Denny-Brown collection, we investigated an unusual feeding behavior exhibited by monkeys after sequential pre- and post-central gyms lesions. The behavior involves ingestion of food by placing the lips directly over the food object, i.e., 'mouth-feeding.' Interestingly, this behavior persists long after recovery of the ability to hand-feed. In all of the cases within the collection and in descriptions of mouth-feeding found in the literature, mouth-feeding occurs only after bilateral lesions. We suggest that the co-existence of mouth- and hand-feeding behavior in animals with pre- and post-central gyms lesions results partly from the sparing of corticospinal projections arising outside these gyri, e.g., the cingulate region, thereby preserving to a certain extent discrete use of the forelimbs.

Original languageEnglish
Pages (from-to)311-315
Number of pages5
JournalBehavioural Brain Research
Volume94
Issue number2
DOIs
StatePublished - Aug 1998

Fingerprint

Haplorhini
Mouth
Feeding Behavior
Hand
Food
Aptitude
Forelimb
Gyrus Cinguli
Lip
Eating

Keywords

  • Feeding
  • Forelimb
  • Grasping
  • Lesion
  • Monkey
  • Motor cortex
  • Reaching
  • Sensory cortex

ASJC Scopus subject areas

  • Behavioral Neuroscience

Cite this

'Mouth-feeding' in monkeys after sensorimotor system lesions : An analysis based upon the Denny-Brown collection. / Vilensky, Joel; Morecraft, Robert J.; Gilman, Sid; Cook, Jennifer A.

In: Behavioural Brain Research, Vol. 94, No. 2, 08.1998, p. 311-315.

Research output: Contribution to journalArticle

Vilensky, Joel ; Morecraft, Robert J. ; Gilman, Sid ; Cook, Jennifer A. / 'Mouth-feeding' in monkeys after sensorimotor system lesions : An analysis based upon the Denny-Brown collection. In: Behavioural Brain Research. 1998 ; Vol. 94, No. 2. pp. 311-315.
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