They participate in the control of movement. Lesions of the basal ganglia occur in a variety of motor disorders including Parkinson's disease and Huntingdon's chorea. It consists of the medulla oblongata, midbrain and pons. Responsible for thought processes. Cortisol then regulates the production of glucose and the body's energy balance.
Depression ranges from normal feelings of the blues through dysthymia to major depression.
Then they go back through stages 3 and 2 to enter REM sleep, where dreams commonly occur. The stages will fluctuate throughout the night as the graph represents. SWS and REM have different wave cycles when measured on an EEG . As you move from stages 1 to 4, the hz values decrease from approximately 8 hz to 2 hz, respectively. REM waves are above 10 hz and have small wave amplitudes.