BIOCHEMICAL (HERITARY) EXPLANATIONS OF OCD

Question 1

What is the genetic (herditary) explanation of OCD?

Answer 1

• OCD may run in families suggesting a genetic link.
• Twin studies show that if one idenitical twin has OCD, the other twin has a higher chance of developing it (compared to non-idenitical twins)

Question 2

What did the twin study conducted by Monzani et al (2014) demonstate?

Answer 2

• Monzani et al (2014) found higher concordance rate for OCD in MZ twins (52%) than DZ twins(21%), indicating a genetic influence.

Question 3

The overall heriability of OCD is…?

Answer 3

• 48%

Question 4

Summarise the genetic (heriditary) explanation of OCD?

Answer 4

• OCD may run in families, suggesting a genetic link.
• Twin studies such as Monzani et al (2014) found a higher concordance rates for OCD in MZ twins (52%) than DZ twins (21%).
• Research suggests the overall heritability of OCD is 48%

Question 5

What is genotyping?

Answer 5

the process of analysing an individual’s DNA to identify differences in their genetic makeup.