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Visuo-motor and cognitive procedural learning in children with basal ganglia pathology

C Mayor-Dubois1, P Maeder, P Zesiger

  • 1Pediatric Neurology and Neurorehabilitation Unit, University Hospital, Lausanne, Switzerland. Claire.Mayor@chuv.ch

Neuropsychologia
|April 6, 2010
PubMed

Insights

Children with basal ganglia (BG) damage show deficits in motor and cognitive learning, regardless of when the damage occurred. This suggests early skill development and limited brain plasticity.

Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Cognitive Science

Background:

  • The basal ganglia (BG) play a crucial role in procedural learning, encompassing both motor and cognitive skills.
  • Understanding how BG damage affects procedural learning in children is essential for comprehending developmental trajectories and potential for recovery.
  • Previous research has not comprehensively examined procedural learning deficits in children with diverse BG etiologies and onset times.

Purpose of the Study:

  • To investigate the impact of basal ganglia (BG) lesions or dysfunction on visuo-motor and cognitive procedural learning in children.
  • To compare learning abilities in children with early-onset, late-onset, and progressive BG disorders.
  • To determine if the age of BG pathology onset influences the severity of procedural learning impairments.

Main Methods:

  • Utilized the Serial Reaction Time (SRT) task for visuo-motor learning assessment.
  • Employed the Probabilistic Classification Learning (PCL) task for cognitive learning assessment.
  • Compared 18 children with BG damage (categorized by onset: early, late, progressive) against normative data.

Main Results:

  • All patients with BG damage exhibited deficits in both visuo-motor and cognitive procedural learning.
  • Children with idiopathic dystonia showed preserved cognitive classification learning skills, despite BG involvement.
  • Learning impairments were observed irrespective of the age of pathology onset, suggesting a lack of age-dependent plasticity.

Conclusions:

  • Basal ganglia damage in children leads to significant impairments in both motor and cognitive procedural learning.
  • The findings support the early development of skill learning and highlight a potential lack of plasticity following BG damage in childhood.
  • Procedural learning deficits appear consistent across various etiologies and onset times of BG pathology in pediatric populations.

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