Biological Explanations of OCD (OCR A-Level Psychology): Quizzes
📚Quizzes
Practise the questions
11 questions from this quiz
ShowHide
Practise the questions
11 questions from this quiz
What does the genetic explanation of OCD argue?
What does the genetic explanation of OCD argue?
OCD can be inherited via candidate genes
What does the SERT gene affect?
What does the SERT gene affect?
Transport of serotonin
What effect does the SERT gene have on serotonin levels?
What effect does the SERT gene have on serotonin levels?
Results in lower serotonin levels
What does the COMT gene variation result in?
What does the COMT gene variation result in?
Higher levels of dopamine
Where is the COMT gene variation more common?
Where is the COMT gene variation more common?
In people with OCD
What do family studies show about OCD?
What do family studies show about OCD?
Relatives are more likely to have OCD
What percentage of identical twins share OCD according to twin studies?
What percentage of identical twins share OCD according to twin studies?
68%
What percentage of genes do identical twins share?
What percentage of genes do identical twins share?
100%
What does the absence of 100% concordance in twins suggest?
What does the absence of 100% concordance in twins suggest?
Biology isn't the only OCD factor
What does the diathesis-stress model propose about genes?
What does the diathesis-stress model propose about genes?
Genes produce vulnerability to OCD
According to diathesis-stress, what determines if OCD develops?
According to diathesis-stress, what determines if OCD develops?
Environmental stressors