The Platysma. The platysma is a paired flat, superficial neck muscle. It is counted among the mimic musculature. The platysma extends from the facial skin slightly above the insertions of the lower jaw to about the height of the second rib. It proceeds upward along the front side of the neck crossing the collar bone.
Biological psychology, or biopsychology, is a field in which the mind-body connection is explored through scientific research and clinical practice.
Biological psychology is the scientific study of the biological substrates of behavior and mental states. Seeing all behavior as intertwined with the nervous system, biological psychologists feel it is sensible to study how the brain functions in order to understand behavior.