Phobic disorders
A phobia is a fear that is out of proportion to the situation that causes it and
cannot be explained away. The person typically avoids the feared situation, since
this helps to reduce the anxiety.
Some phobias represent heightened normal anxiety towards situations that people are
evolutionarily prepared to fear, eg snakes, heights and sharp objects.
In other instances, a phobia may arise by a non-threatening situation being associated
with a traumatic experience. Having a car crash in Spain may lead to a phobia of
Spain itself, holidays, driving or flying.
Phobias typically occur in specific situations, eg a fear of dentists. People experience
anticipatory anxiety' when thinking of the situation and so attempt to avoid it.
They are common in the general population, but are only severe enough to prove disabling
in 2 per cent of people.
Simple phobias are phobias that are specific to objects or situations. Specific phobias
include:
- animal phobias (eg, dogs, snakes, spiders): the start of these phobias is often in
childhood, usually before the age of seven years.
- blood and injury phobias: the fear of blood tests or the sight of blood that results
in fainting.
- vertigo: a fear of heights.
- agoraphobia: an intense fear of leaving the home, being in crowded spaces, travelling
on public transport and being in any place that is difficult to leave. Around 75
per cent of sufferers are women, and it occurs in just under 1 per cent of people.
Agoraphobia may follow a life event and be associated with a fear of 'what if it
comes back while I am away from home'. It commonly occurs with panic attacks. The
person may have a panic attack when outside the home and this reinforces the belief
that it is safer to stay inside. Agoraphobia is often associated with depression.
- social phobia: a fear of social interaction with others, talking to people, eating,
drinking and speaking in public. In contrast to agoraphobia, men and women are affected
equally. Many people have a mixture of both agoraphobia and social phobia. Social
phobia is also a common symptom of depression.