Executive functions in OCD

Question 1

Cognitive flexibility

Answer 1

Including set shifting. the ability to shift attention between tasks.

More perseverative error in the wisconsin card sorting task. Ability to modify response is impaired.

Question 2

Decision making

Answer 2

Basing choices on the advantage/costs/risk associated w behaviour.

Iowa gambling task: OCD show impaired ability to adjust behaviour based on gains. They choose the worse decks

Delay discounting: OCD are less inclined to resist an immediate small reward in order to obtain a larger later reward.

Question 3

Inhibitory (impulse) control

Answer 3

Ability to inhibit actions/thoughts

Meta analysis with stop signal task reported that OCD tend to perform poorly. No evidence in go/no go and stroop