Discuss biological explanations ofOCD
for 16 marks
A01 6
A 03 10
Genetic explanations
AOI
SERT I COMPT
regulates serotonin regulates dopamine
mutation low serotonin levels codesfor enzyme that breaks down
T anxiety irrational dopamine
thinking mutation non functioningenzyme
no break down ofdopamine
T levels of dopamine
more expectation of
a reward
T levels of anxiety
neural explanations
Structual chemical brain differences
caudate nucleus damaged fails to suppress worry signals
OFC overactive causes repititive thoughts obsessions actions
compulsions
for 16 marks
A01 6
A 03 10
Genetic explanations
AOI
SERT I COMPT
regulates serotonin regulates dopamine
mutation low serotonin levels codesfor enzyme that breaks down
T anxiety irrational dopamine
thinking mutation non functioningenzyme
no break down ofdopamine
T levels of dopamine
more expectation of
a reward
T levels of anxiety
neural explanations
Structual chemical brain differences
caudate nucleus damaged fails to suppress worry signals
OFC overactive causes repititive thoughts obsessions actions
compulsions
