Hidden intelligence of a multiply handicapped child with Joubert syndrome

Area of Science:

• Pediatric Neurology
• Clinical Genetics
• Developmental Neuroscience

Background:

• Joubert syndrome is a rare genetic disorder characterized by episodic hyperpnoea, abnormal eye movements, and ataxia.
• Intellectual disability has been considered a common feature of Joubert syndrome, impacting developmental trajectories.

Observation:

• A case study followed a child diagnosed with Joubert syndrome from birth to eight years.
• Initial assessments suggested severe intellectual disability due to significant motor impairments and developmental delays.

Findings:

• Despite early indications of intellectual disability, the child later demonstrated unexpected and exceptional mental capacities.
• The findings suggest that early motor deficits in Joubert syndrome can create a false impression of cognitive impairment.

Implications:

• This case challenges the established notion that intellectual disability is an inherent component of Joubert syndrome.
• It highlights the critical need for appropriate cognitive assessments and early stimulation in children with severe motor disorders to accurately gauge their intellectual potential.