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Related Experiment Video

Updated: Jun 15, 2026

Neurodevelopmental Reflex Testing in Neonatal Rat Pups
09:35

Neurodevelopmental Reflex Testing in Neonatal Rat Pups

Published on: April 24, 2017

Prenatal Development of Interlimb Motor Learning in the Rat Fetus.

Scott R Robinson1, Gale A Kleven, Michele R Brumley

  • 1Department of Psychology, University of Iowa.

Infancy : the Official Journal of the International Society on Infant Studies
|March 4, 2010
PubMed
Summary

Fetal rats develop motor learning abilities before birth. Starting on day 19 of gestation, they can adjust hind limb coordination through kinesthetic feedback, showing significant prenatal motor development.

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Area of Science:

  • Neuroscience
  • Developmental Biology
  • Motor Control

Background:

  • Sensory feedback's role in early motor coordination is debated.
  • Prenatal motor learning in rats is not fully understood.
  • Interlimb coordination can be trained using an interlimb yoke.

Purpose of the Study:

  • To investigate the developmental timeline of motor learning in fetal rats.
  • To determine when fetuses gain the ability to modify interlimb coordination.

Main Methods:

  • In vivo study of fetal rats at four gestational ages (E18-E21).
  • A 65-minute training and testing session using an interlimb yoke.
  • Analysis of hind limb motor learning and conjugate activity.

Main Results:

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Development of a Neonatal Rat Model for Brachial Plexus Birth Injury
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Development of a Neonatal Rat Model for Brachial Plexus Birth Injury

Published on: March 27, 2026

Related Experiment Videos

Last Updated: Jun 15, 2026

Neurodevelopmental Reflex Testing in Neonatal Rat Pups
09:35

Neurodevelopmental Reflex Testing in Neonatal Rat Pups

Published on: April 24, 2017

Acquisition of a High-precision Skilled Forelimb Reaching Task in Rats
08:59

Acquisition of a High-precision Skilled Forelimb Reaching Task in Rats

Published on: June 22, 2015

Development of a Neonatal Rat Model for Brachial Plexus Birth Injury
09:42

Development of a Neonatal Rat Model for Brachial Plexus Birth Injury

Published on: March 27, 2026

  • Significant conjugate hind limb activity indicating motor learning emerged by embryonic day 19 (E19).
  • No significant learning was observed in E18 fetuses.
  • Conjugate hind limb activity increased further on E20 and E21.

Conclusions:

  • Fetal rats demonstrate a developing capacity for motor learning before birth.
  • Kinesthetic feedback plays a crucial role in modifying interlimb coordination during prenatal development.
  • Motor coordination patterns are significantly refined in late-stage gestation.