The platysma changes the facial expression which plays an important role in human social behavior. In elderly people â when the skin increasingly loses its elasticity â both inner faces of the platysma form two longitudinal wrinkles on the neck.
Biological psychology is a branch of psychology that studies the physiological causes of behavior. This field is sometimes referred to as behavioral neuroscience or biopsychology.
The Biological Perspective on Psychology. This field of psychology is often referred to as biopsychology or physiological psychology. This area of psychology has grown tremendously in recent years and is linked to other areas of science including biology, neurology, and genetics.