Simple
or specific phobias have been quite effectively treated with behavior therapy
(Marks, 1987). The behaviorists involved in classical conditioning techniques
believe that the response of phobic fear is a reaction acquired to
non-dangerous stimuli. The normal fear to a dangerous stimulus, such as a
poisonous snake, has unfortunately been generalized over to non-poisonous ones
as well. If the person were to be exposed to the non-dangerous stimulus time
after time without any harm being experienced, the phobic response would
gradually extinguish itself. Also, this assumes that the person does not also
experience the dangerous stimulus during that same extended period of time. In
other words, one would have to come across ONLY non-poisonous snakes for a prolonged
period of time for such extinction to occur. This is not likely to occur
naturally, so behavior therapy sets up phobic treatment involving exposure to
the phobic stimulus in a safe and controlled setting. Foa and Kozak (1986) call
this exposure treatment,
so called because the patient is exposed to the phobic stimulus as part of the
therapeutic process.
One
simple form of exposure treatment is that of flooding,
where the person is immersed in the fear reflex until the fear itself fades away.
Some phobic reactions are so strong that flooding must be done through one's
imagining the phobic stimulus, rather than engaging the phobic stimulus itself.
Some patients cannot handle
flooding in any form, so an alternative classical conditioning technique is
used called counter-conditioning (Watson, 1924). In this form, one is
trained to substitute a relaxation response for the fear response in the
presence of the phobic stimulus. Relaxation is incompatible with feeling
fearful or having anxiety, so it is said that the relaxation response counters
the fear response. This counter-conditioning is most often used in a systematic
way to very gradually introduce the feared stimulus in a step-by-step fashion
known as systematic
desensitization, first used by Joseph Wolpe (1958).
This desensitization
involves three steps:
(1) training the patient to physically relax,
(2)
establishing an anxiety hierarchy of the stimuli involved, and
(3)
counter-conditioning relaxation as a response to each feared stimulus beginning
first with the least anxiety-provoking stimulus and moving then to the next
least anxiety-provoking stimulus until all of the items listed in the anxiety hierarchy have been dealt with successfully.
Biofeedback instrumentation has
often been used to ensure that the patient is truly well-relaxed before going
the next higher item in the anxiety hierarchy. Several indexes have been used
in this adjunctive approach, including pulse rate, respiration rate, and
electrodermal responses.
Also, systematic desensitization
can be paired with modeling,
an application suggested by social learning theorists. In modeling, the patient
observes others (the "models") in the presence of the phobic stimulus
who are responding with relaxation rather than fear. In this way, the patient
is encouraged to imitate the model(s) and thereby relieve their phobia.
Combining live modeling with personal imitation is sometimes called participant
modeling (Bernstein, 1997).
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