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 looks at the link between biology and psychological events such as how information travels thoughout our bodies (neural impulses, axons, dendrites, etc.), how different neurotransmitters effect sleep, dreams, and other behaviors, just to name a few.