AP PSYCHOLOGY

Detailed explanation-1: -Parasomnias, a category of sleep disorders, are often associated with disruptions in slow wave sleep. Sleep walking and sleep talking most often occur during periods of high delta wave activity.

Detailed explanation-2: -Stage 3 NREM sleep consists of delta waves or slow waves. Awakenings or arousals are rare and often it is difficult to wake up someone in Stage 3 sleep. Sleep conditions like parasomnias (which can include sleepwalking, sleep talking and night terrors, ) occur during the deepest NREM stage of sleep.

Detailed explanation-3: -Delta waves are the slowest recorded brain waves in human beings. They are found most often in infants and young children, and are associated with the deepest levels of relaxation and restorative, healing sleep. Delta is prominently seen in brain injuries, learning problems, inability to think, and severe ADHD.

Detailed explanation-4: -In the deepest level of sleep, stage IV sleep, the predominant EEG activity consists of low frequency (1–4 Hz), high-amplitude fluctuations called delta waves, the characteristic slow waves for which this phase of sleep is named.

Detailed explanation-5: -Both delta waves and theta waves occur when you’re asleep, but delta waves are the waves that dominate when you’re in a period of deep, restorative sleep.