... of laughter have been described, the arousal phase, elevating the heart rate, and the resolution phase, resting of the heart. (8) Cardiologists at the University of Maryland found those patients ... upper pons controls two pathways, the “voluntary path” and the “involuntary path” otherwise known as the “emotionally-driven path”. (5) The voluntary path-way begins from the premotor opercular ... extremes of the emotional spectrum were shown. At the end of the videos, the brachial artery constricted for five minutes and was then released. In fourteen of the twenty volunteers the artery...