AP PSYCHOLOGY

Detailed explanation-1: -5 Delta Waves. 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.

Detailed explanation-2: -SWS, or delta sleep, follows stage 2 sleep and is characterized by polymorphic, semirhythmic delta waves accounting for at least 20% of the EEG activity. SWS is characterized by relative body immobility. SWS is maximal in young children and markedly decreases with age.

Detailed explanation-3: -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-4: -They are the slowest and highest amplitude classically described brainwaves, although recent studies have described slower (<0.1 Hz) oscillations Delta waves begin to appear in stage 3 sleep, but by stage 4 nearly all spectral activity is dominated by delta waves.

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.