Delta waves

A) Usually occur in children or in adults experiencing frustration
B) Observed in a person who is awake, quiet, and resting, with eyes closed
C) Occur in deep sleep, infancy, and patients with brain disorders
D) Occur during intense mental activity

Delta Waves

Slow brain waves typically associated with deep sleep and certain brain disorders.

Deep Sleep

A stage of sleep characterized by slow brain waves, minimal bodily movement, and reduced response to external stimuli.

Brain Disorders

Conditions that impact the brain's structure and function, impairing mental processes and behaviors.