Altered brain activation during response inhibition in children with primary nocturnal enuresis: an fMRI study

Area of Science:

• Neuroscience
• Developmental Pediatrics
• Child Psychology

Background:

• Nocturnal enuresis is a common childhood developmental disorder.
• Primary nocturnal enuresis (PNE) is the most frequent subtype, affecting many children.
• Understanding the underlying brain mechanisms of PNE is crucial for effective intervention.

Purpose of the Study:

• To investigate brain functional abnormalities in children with PNE.
• Specifically examine motor response inhibition using functional magnetic resonance imaging (fMRI).
• Correlate brain activity with PNE pathophysiology.

Main Methods:

• Functional magnetic resonance imaging (fMRI) was employed.
• A Go/NoGo task was administered to assess motor response inhibition.
• Twenty-two children with PNE were compared to 22 age- and sex-matched healthy controls.

Main Results:

• No significant differences in task performance accuracy were found between groups.
• Children with PNE demonstrated significantly longer response times.
• Reduced brain activation during response inhibition was observed in PNE patients, particularly in prefrontal and parietal regions.

Conclusions:

• Children with PNE show delayed maturation of prefrontal cortex circuitry involved in suppressing inappropriate responses.
• These findings suggest a link between immature response inhibition mechanisms and the pathophysiology of PNE.
• This research provides insights into the neurobiological basis of nocturnal enuresis.