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Phobias and the Brain Essay

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Phobias and the Brain

You are in an airport waiting for your plane to arrive. You've never flown before, and are more terrified than you can ever remember being. Everyone has told you the supposedly comforting statistics - "millions of planes take off each day and there's only a handful of crashes," "flying is safer than driving." You know rationally that there is no reason to be so scared, but regardless your heart is racing, your palms are sweating, and you're light-headed. Simply the thought of being up in the air, out of control, makes you feel faint. Finally the flight attendant announces that your plane has arrived. But as all the other passengers line up to get onboard, you grab your luggage and walk straight out of the airport, …show more content…

(3) Women are two to three times as likely to have phobias than men. There are three basic kinds of phobias: agoraphobia (fear of situations in which escape may be difficult), social phobia, and specific phobias. The DSM-IV has separated phobic stimuli into four basic categories: animal, situational, blood injury, and nature-environment. (3)

Though the experience of phobias is relatively common and their physical characteristics are generally well understood, there is no real consensus on the neurobiological basis of phobias. Instead, there are currently several different models and theories that work to try to understand how and why phobias occur in the human brain. Most hypotheses regarding phobias take a different approach, from biological to psychoanalytic to evolutionary. Is there one model that seems "less wrong" or more satisfying in our efforts to understand the biology of phobias? Using the various models, how do phobias seem to come about? How does thinking about phobias add to our understanding of the brain and behavior?

The classical conditioning model was one of the first theories used to describe phobias. Many years ago, scientists observed that one could willingly elicit a fear response in an animal or human through systematic teaching. For example, if every time a rat is presented with a low buzzing noise, it is electrically shocked, eventually, when it hears the noise alone (with no shock), it will exhibit symptoms of fear. (3) Scientists

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