[Graphomotor functions in children with attention deficit hyperactivity disorder (ADHD)]

Area of Science:

• Neuroscience
• Developmental Psychology
• Pediatrics

Context:

• Attention deficit hyperactivity disorder (ADHD) is a neurodevelopmental disorder characterized by inattention and/or hyperactivity-impulsivity.
• Graphomotor functions, particularly handwriting, are often affected in children with ADHD.
• Methylphenidate is a common stimulant medication used to manage ADHD symptoms.

Purpose:

• To review existing studies on the effects of methylphenidate on handwriting in children with ADHD.
• To examine the qualitative and quantitative changes in handwriting associated with methylphenidate treatment.
• To explore the interaction between attentional functions and graphomotor skills in medicated ADHD children.

Summary:

• Methylphenidate treatment generally leads to improved handwriting quality and legibility in children with ADHD.
• While overall handwriting may improve, kinematic analysis indicates a decrease in the fluency of writing movements when on methylphenidate.
• Children with ADHD may over-utilize enhanced attentional capacity from medication on automatic skills like handwriting, potentially disrupting smooth execution.

Impact:

• Findings highlight the complex effects of stimulant medication on motor skills in ADHD.
• Suggests that while methylphenidate can aid attention, it may paradoxically impair the automaticity of handwriting.
• Informs clinical practice regarding the assessment and management of handwriting difficulties in ADHD patients undergoing treatment.