Sigmund Freud is popularly known as the father of modern psychology. His pioneering structural theory was largely based on the three stages of conscience: id, ego and superego. The id is the most primal and instinctive part of the mind and is the basis of such primitive emotions as fear and anxiety.
The superego is the selfless higher conscience, adding value judgments and the concept of guilt. The ego is the rational moderator between the two. A significant portion of the ego’s duty is to control the impulses of the id.
According to this theory, phobias are based in anxiety reactions of the id that have been repressed by the ego. The currently feared object is not the original subject of the fear.
Learning theory is a broadly inclusive set of theories that are based on principles of behaviorism and cognitive theory. Ivan Pavlov pioneered learning theory by showing that dogs could be trained to salivate when a bell was rung. Since then, numerous psychologists have built on Pavlov’s work to develop more complete theories of human behavior.
According to learning theory, phobias develop when fear responses are reinforced or punished. Both reinforcement and punishment can be positive or negative. Positive reinforcement is the presentation of something positive, such as a parent rewarding a child for staying away from a snake. Positive punishment is the presentation of something negative, such as a child being bitten by a snake.
The medical model of psychology states that mental disorders are caused by physiological factors. Neuropsychology is a branch of psychology that is dedicated to studying the structure and function of the brain.
Neuropsychologists have identified certain genetic factors that may play a role in the development of phobias. Although the research is still in its early phases, it is known that certain medications that affect the brain’s chemistry are helpful in treating phobias.