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.
Cognitive Psychology. Definition: A psychological in which one studies the cognitive processes in our brain, such as thinking, knowing, and communicating Example: From a cognitive perspective, one could view happiness as an effect on our thinking processes.