The Biological Approach to OCD (Disadvantages of Biological Therapy (Side…
The Biological Approach to OCD
Disadvantages of Biological Therapy
of using these types of drugs include
, and sometimes increased levels of
. This can cause people to
SSRIs have to be taken for
before the patient experiences an improvement in their symptoms.
of patients with OCD
experience any improvement in their symptoms when taking SSRIs. Out of those that do improve up to
when they stop taking them.
Advantages of Biological Therapy
Research has found that using
that don't affect serotonin levels is
at reducing OCD symptoms.
Several researchers have found SSRIs to be
in treating OCD.
Thoren et al
(1980) found that use of an SSRI was significantly better at
reducing obsessional thoughts
than a placebo.
OCD Can be Treated Using Biological Therapy
approach to treating OCD involves
. Drug treatments usually work by increasing levels of
in the brain using
selective serotonin reuptake inhibitors (SSRIs)
. These are a type of
the availability of
prevent the reuptake
of serotonin in the
. This means there's
available to the next neurone.
Weaknesses of the Biological Explanation of OCD
Biological therapies raise
concerns. Drugs can produce addiction and may only suppress symptoms rather than cure the disorder.
The explanation doesn't take into account the effect of the
- psychologists taking other approaches consider these sorts of things important factors.
Strengths of the Biological Explanation of OCD
It can be seen as
for their disorders; they just have an illness.
have shown that genetics have at least some effect on the likelihood of developing OCD.
It has a
basis in biology - there's evidence that low serotonin and damage to the basal ganglia
with cases of OCD, though this doesn't necessarily show a
The Biological Mode Assumes Psychological Disorders are
assumes that psychological disorders are
with physical causes. In principle, they're no different from physical illnesses like flu, except they have major psychological symptoms. There are several
Some research using
has found that
within the brain may be linked to OCD.
Aylward et al (1996)
didn't find a significant difference in
basal ganglia impairment
between OCD patients and controls.
Basal ganglia damage
been found in
of people with OCD, so it can't be the full story.
Max et al (1995)
of OCD in people after
that caused brain damage to the
Other researchers have found
in this area during OCD-related thoughts and behaviours.
OCD is often found in people with
which involve the basal ganglia.
have shown that levels of the
are lower in OCD sufferers.
appear to offer some relief to sufferers of OCD. However, as this is
of cases, there must be
to understanding OCD.
with serotonin is
, so it doesn't show
cause and effect
. It may be that decreased serotonin levels are a
of OCD, rather than a cause of it.
found that a class of drugs called
, which increase levels of serotonin, can reduced symptoms of OCD in
50 to 60%
Zohar et al (1996)
also found that
SSRIs alleviated symptoms
of patients with OCD.
Some researchers think that
plays a part in OCD. Studies have looked at OCD rates among people with a relative who has OCD, to see if having a relative with OCD
increases your chances of developing it.
No study has found a
concordance rate, so
be the full story in OCD. It's possible that children
the obsessive and compulsive behaviour of their relatives.
Concordance rates don't prove that OCD is
by genetics. It may be that
is genetic and that going on to develop OCD itself has
other contributing factors
Billet et al (1998)
of twin studies that had been carried out over a long period of time. They found that for
, if one twin had OCD then
of the time both twins had it, compares to
Pauls et al (2005)
of people with an
with OCD also suffered from the disorder. This is compared to around
of people in the general population.