What characteristic EEG pattern is commonly associated with absence seizures?

The characteristic EEG pattern commonly associated with absence seizures is the presence of 5-6 Hz spike and wave discharges. In patients experiencing absence seizures, the EEG typically demonstrates these rhythmic spike-and-wave discharges, which occur in bursts and are usually bilateral and symmetrical. This distinctive pattern reflects the underlying pathophysiology of absence seizures, where there is a disruption in thalamocortical circuits leading to the characteristic brief lapses of consciousness.

Understanding this specific EEG pattern is essential for recognizing absence seizures, which can often be mistaken for other types of seizures due to their subtle nature. The presence of 5-6 Hz spikes is particularly important for accurate diagnosis, as it helps differentiate absence seizures from other seizure types that may display different EEG findings.