Dysarthria is a core feature of polymicrogyria

Takeaway

  • All patients with polymicrogyria (PMG) have speech and language impairment, with speech disorder being most prominent in those who have perisylvian PMG.

Why this matters

  • Recent advances in neuroimaging have revolutionized the diagnosis of PMG and causative genes have provided neurobiological insights.

  • Most speech and language studies in PMG have focused on children with higher-level abilities who are able to complete a verbal assessment. Because speech and language difficulties are frequent in PMG, these studies do not depict the full spectrum of abilities seen in PMG.