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Related Experiment Videos

Postural control in man: the phylogenetic perspective.

Albert Gramsbergen1

  • 1University of Groningen, Medical Physiology, 9713 AV Groningen, The Netherlands. a.a.gramsbergen@med.rug.nl

Neural Plasticity
|August 16, 2005
PubMed
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Human upright posture evolved recently, posing complex control challenges. Cerebellar development is crucial for coordinating posture and movement, especially given its postnatal vulnerability.

Area of Science:

  • Neuroscience
  • Evolutionary Biology
  • Biomechanics

Background:

  • Human erect posture is a recent evolutionary development, presenting unique cybernetic challenges for postural control.
  • Motor control involves complex interactions between older trunk systems and newer extremity systems, both essential for coordinated movement.
  • The cerebellum plays a key role in integrating postural control with limb movements, bridging older and newer neural structures.

Purpose of the Study:

  • To explore the evolutionary context of human upright posture and its implications for motor control.
  • To investigate the interdependence of postural development and locomotion, using rodent models.
  • To highlight the critical role of the cerebellum in coordinating posture and movement and its vulnerability during development.

Main Methods:

Related Experiment Videos

  • Comparative evolutionary analysis of human and ape lineages.
  • Experimental studies on rat models to examine locomotion and postural development.
  • Investigation of cerebellar function in motor control and inter-system coordination.

Main Results:

  • Rodent research demonstrates that fluent locomotion emergence is critically dependent on postural development.
  • Vestibular deprivation in rats retards postural development, consequently hindering the development of adult-like locomotion.
  • The cerebellum is vital for coordinating postural adjustments and extremity movements, linking older and newer motor systems.

Conclusions:

  • The cerebellum's role in integrating postural and limb movements is critical for bipedal locomotion.
  • Postnatal cerebellar development in humans makes it susceptible to adverse influences, impacting motor control.
  • Further research into human cerebellar development is warranted due to its vulnerability and importance for upright posture and movement.