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WorksheetsOCD Quiz
Total questions: 19
Worksheet time: 19mins
Which component is the obsessional part of OCD
Cognitive component
Behavioural component
Emotional Component
Which component is the compulsive part of OCD
Cognitive component
Emotional Component
Behavioural Component
Which method did Groothest use to provide support for OCD being linked to biology
Questionnaire
Unstructured interviews
Case study
Meta-analysis
Which type of twin did Groothest find had a higher concordance rate for OCD?
MZ (identical twins)
DZ (non identical twins)
PZ
When the concordance rate is not 100% what does this suggest is also involved in the condition?
Genetics
Environmental triggers
Animals
Children who have family members with OCD usually show the following
They too have the exact same OCD which suggest it is learned
They have OCD but it differs to the OCD their family member has which suggests it is biological
They show no sign of having OCD
What 2 genes have been linked with the development of OCD?
BERT Gene
GERT Gene
SERT Gene
COMT Gene
What % of OCD sufferers respond well to anti-depressants (SSRIs)?
10%
20%
50%
90%
What gene leads to high levels of dopamine which could also be a cause of OCD?
BOMT Gene
HOMT Gene
COMT Gene
SOMT Gene
In which 2 ways could you criticise the biological explanation for OCD
Too deterministic
Too holistic
Too reductionist
Too idiographic
Which part of the brain is thought to be leaky and allows trivial information to become obsessive thoughts
Thalamus
Frontal lobe
Basal Ganglia
Temporal Lobe
A second biological treatment for OCD
Psychotherapy
Cognitive Behavioural Treatment
REBT
Deep Brain Stimulation
What % of population suffers from OCD?
15%
10%
5%
2%
The SERT gene leads to what happening?
No serotonin being released into synaptic gap at all
Too much serotonin being released into synaptic gap so the receptors are overwhelmed
Serotonin being taken back into the pre-synaptic neuron too quickly so there is not enough serotonin in synapse for long enough
How do anti-depressants (SSRIs) help with OCD?
They stop serotonin from being released into the synapse
They block the re-uptake channels on the pre-synaptic terminal button to allow more serotonin in the synapse for longer
The block the receptor sites on the post synaptic dendrites
They attach to the axon to make the electrical impulse travel faster
2 pieces of evidence to support the role of the basal ganglia in the development of OCD
PET scans show more activity in the thalamus which suggests the basal ganglia is faulty.
COMT gene is faulty
Deep brain stimulation helps to treat OCD
Having stressful events in life
What 2 results did Lewis find to support the biological explanation for OCD
Studied MZ and DZ twins
Found 37% of OCD sufferers had a parent with OCD
Found 21% of OCD sufferers had a sibling with OCD
Found that people with OCD had a pet dog with OCD
Evidence for brain dysfunction being involved in OCD?
Person with OCD has a high chance of having a parent with OCD
PET scans and found more activity in the thalamus - shows basal ganglia is leaky
Higher concordance rate for OCD for MZ twins
Why is it difficult to establish if brain dysfunction is the cause of OCD?
Unethical to do well controlled lab exp and make parts of brain faulty to see if causes OCD
Researcher can't get a big enough sample size
