Background Module 10

Question 1

What are four OC-related disorders discussed in this course (just name them)?

obvs not OCD

Answer 1

• Hoarding disorder
• Body dysmorphic disorder
• Trichotillomania
• Skin picking disorder

Question 2

What is a common criteria/factor for all OC-related disorders?

Answer 2

That they are characterized by an irrestistible urge to perform distressing and time-consuming compulsive behaviours

Question 3

Explain hoarding disorder

Answer 3

Persistent difficulty in disposing of belongings due to a strong need to save objects + suffering associated with disposing of them

Question 4

Explain body dysmorphic disorder

Answer 4

Preoccupation with 1+ subjectively perceived defects/imperfections in appearance (insignificant/not perceived by others)
- Repetitive body-oriented behaviour (grooming, reassurence) or psych activity (comparing)

Question 5

Explain trichotillomania

Answer 5

Repeated pulling of the hair despite attempts to stop it

Question 6

Explain skin picking disorder

Answer 6

Repeated plucking of the skin causing skin lesions, despite attempts to stop it

Question 7

There is a lot of comorbidity between the different OC-related disorders, within individuals and families. What does this suggest?

Answer 7

Common genetic and neuropsych processes that underly these disorders

Could that not also be shared environment tho

Question 8

What two cognitive impairments seem to underly OC-related disorders?

Answer 8

• Motor inhibition
• Cognitive inflexibility

Note in differing degrees, e.g., trichotillomania does not see point 2

Question 9

What does the stop-signal task measure?

Answer 9

Motor inhibition

Question 10

What does set shifting measure?

Answer 10

Cognitive flexibility