How is a seizure-related EEG finding typically classified?

A seizure-related EEG finding is typically classified as epileptiform abnormalities. These abnormalities consist of specific waveforms that indicate the presence of abnormal electrical activity in the brain associated with seizures. Examples include spikes, sharp waves, and spike-and-wave complexes. Such patterns are crucial for diagnosing epilepsy and understanding the type and focus of seizure activity within the brain.

In contrast, currents of injury reflect more generalized disturbances in the EEG attributable to brain insult rather than directly indicating seizure activity. Alpha-related dysrhythmias refer to normal patterns that occur during alert, resting states and thus do not indicate seizures or seizure predisposition. Normal variants, while sometimes seen in EEGs, are regular, benign variations that are not indicative of pathological brain activity like seizures.