AP PSYCHOLOGY

Detailed explanation-1: -The whole brain is active during dreams, from the brain stem to the cortex. Most dreams occur during REM (rapid eye movement) sleep. This is part of the sleep-wake cycle and is controlled by the reticular activating system whose circuits run from the brain stem through the thalamus to the cortex.

Detailed explanation-2: -Neuroimaging studies have repeatedly shown amygdala activity during sleep (REM and NREM). Consequently, various theorists propose central roles for the amygdala in dreaming-particularly in the generation of dream affects, which seem to play a major role in dream plots.

Detailed explanation-3: -Dreams tap memories stored in connections between brain cells, which the hippocampus tracks as they form. At night it directs neurons to replay recollections, facilitating long-term storage. That could be why reality seeps into our visions-but not why they tend to warp reality.

Detailed explanation-4: -When you dream, your whole brain is active at some level. However, during REM sleep, your prefrontal cortex is less active. This is the part of the brain that is responsible for planning and logic.