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.
Thank you to... . . . . To understand the behavior of humans and non-human animals better, biological principles are applied to these behaviors. This field is known as biological psychology, a branch of psychology that is also referred to as behavioural neuroscience. Biological psychologists seek to examine the anaphysiological processes behind different behaviors, whether normal or abnormal.