Biological Approach to explain OCD

Question 1

Biological approach to explain OCD

Answer 1

Biological approach to explain ocd addresses genetic and neural explanations.

Question 2

Biological approach to explain OCD

Answer 2

Biological approach to explain ocd addresses genetic and neural explanations.

Question 3

Genetic explanations

Answer 3

Genetic explanation suggests that OCD is inherited and that individuals receive specific genes from their parents which influences OCD

Taylor 2003 suggests there are as many as 230 genes that are involved. Different variations could contribute to Different types of OCD

Genes that are linked with OCD
COMPT gene and SERT gene

COMPT gene regulates dopamine high levels OCD

SERT gene linked to serotonin low-level mean OCD

Question 4

Neural explanations

Answer 4

Abnormal levels of neurotransmitters (serotonin and dopamine)

Question 4

Neural explanations

Answer 4

Abnormal levels of neurotransmitters (serotonin and dopamine) and certain regions of the brain are implicated in OCD

basal ganglia

obitofrontal cortex

Question 5

Evaluation of Biological Approach to explain OCD

Answer 5

Research supported
Lewis 1936 examined patients with OCD
Nestadt et al 2000 individuals with first degree relative 5x more likely to develop OCD

Billett et Al 1998 meta analysis of 14 twins
Monozygotic twins has double