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.
A psychologist is an expert in the study of human behavior. A child psychologist specializes in understanding thought processes and actions of children and interpreting them to guide appropriate mental health treatment. child psychologist specializes in understanding thought processes and actions of children and interpreting them to guide appropriate mental health treatment.