High voltage theta or delta waves, commonly seen in children 8-14 years, accentuated by hyperventilation are known as?

High voltage theta or delta waves that are commonly seen in children aged 8 to 14 years and accentuated by hyperventilation are characteristic of the phenomenon known as Posterior Slow Waves of Youth (PSWY). These brain wave patterns are considered a normal variation in the EEG of children during this developmental stage and are not associated with any pathological conditions.

The presence of these waves is typically observed in specific brain regions, primarily the posterior part of the head, and is influenced by the child’s age and mental state, especially when provoked by hyperventilation. Recognition of PSWY is important for clinicians as it can help differentiate between normal developmental variations and abnormal epileptiform activity.

Understanding these characteristics helps in the interpretation of EEG findings in children, thereby guiding clinicians in making informed decisions regarding further evaluations or interventions.