How is the pattern known as "generalized slowing" interpreted in an EEG?

Generalized slowing in an EEG is interpreted as indicating diffuse cerebral dysfunction. This pattern reflects a widespread disturbance in the brain's electrical activity, which can occur in various conditions, such as metabolic disorders, toxic states, or significant brain injury. Generalized slowing is characterized by a reduction in the frequency of brain waves across multiple regions rather than localized changes, which points to a more systemic issue within the brain rather than a specific area of dysfunction.

In contrast, localized brain function is typically associated with more focal patterns on the EEG rather than generalized slowing. Hyperactivity would present with increased frequencies or bursts of rhythmic activity rather than slowing. Normal brain activity would generally demonstrate a typical range of frequencies and patterns depending upon the individual's state (such as awake or asleep) without the widespread slowing observed in diffuse dysfunction.