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Conditioning of fine motor control in neonatally undernourished rats
- Source :
- Life Sciences. 21:1521-1525
- Publication Year :
- 1977
- Publisher :
- Elsevier BV, 1977.
-
Abstract
- The literature indicates that the effects of developmental undernutrition on the rat nervous system are disproportionally found in the cerebellum, an organ involved in motor coordination and control. In this experiment, rats who had been developmentally undernourished did not show increased variability of forces placed on a bar by the paw in an operant learning paradigm, indicating normal motor control function. However, deficits were obtained when reinforcement was made contingent on bar press force regulation. Experimental rats shifted bar pressing forces to meet criterion more slowly than controls and received fewer reinforcements over training trials. The data are discussed in terms of recent suggestions that the cerebellum is directly involved in motor learning processes.
- Subjects :
- Nervous system
Cerebellum
business.industry
Body Weight
Motor control
General Medicine
General Biochemistry, Genetics and Molecular Biology
Nutrition Disorders
Rats
Motor coordination
medicine.anatomical_structure
Animals, Newborn
Motor Skills
medicine
Animals
Learning
Conditioning
General Pharmacology, Toxicology and Pharmaceutics
business
Control (linguistics)
Motor learning
Reinforcement
Neuroscience
Subjects
Details
- ISSN :
- 00243205
- Volume :
- 21
- Database :
- OpenAIRE
- Journal :
- Life Sciences
- Accession number :
- edsair.doi.dedup.....e5ec2daf6248161d3207c00ab3a14baf