EEG in Infants

What is infant EEG and what does it show?

EEG uses small electrodes on the scalp to record brain waves. Normal EEG patterns in infants differ from those in adults and must be read by a specialist. EEG is commonly requested for hypotonia, suspected seizures, concern for infantile spasms, or developmental regression. Results alone do not make a diagnosis; they are interpreted together with birth history, examination, and developmental findings.

When should you pay attention?

Suspected seizures, sudden bluish episodes, rhythmic jerking, or major disruption of sleep-wake patterns in the newborn period warrant prompt evaluation. Regression in development, difficulty crawling, or marked delay in head control may also prioritize EEG planning. Not every jitteriness is a seizure; the decision is made together with clinical examination.

• Rhythmic arm or leg stiffening or collapse movements
• Persistent hiccups or unusual eye movements
• Neurologic concern after difficult birth or prematurity
• Hypotonic (floppy) infant
• Feeding difficulty with agitation or poor sleep

When to see a neurologist and tips for families

If your baby has unusual movements, developmental delay, or neurologic warnings after birth, schedule a pediatric neurology visit. You may bring feeding supplies to the EEG appointment, and the scalp should be clean. Holding or feeding the baby during recording is often possible. Review results with your physician and ask what they mean and what the next steps are, rather than focusing only on labels such as normal or abnormal.