Organic Mental Disorders

Question 1

Organic mental disorders?

Answer 1

Group of disorders with recognised organic explanation
acquired - differentiation from LD
Primary brain disorder/impairment vs secondary brain disorder

Question 2

Common features

Answer 2

Disorientation, impaired attention/concentration, memory, language, judgement, insight
Agitation, aggression, slowing, psychomotor retardation, abnormal social conduct
Low mood, anxiety, mania
Hallucinations, delusions (visual, persecutory)

Question 3

Acute/subacute disorders

Answer 3

Delerium
Organic mood disorder
Organic psychotic disorder

Question 4

Chronic disorders

Answer 4

Dementia
Amnesic syndrome
Organic personality change

Question 5

Causes of delerium

Answer 5

Infections, medications, withdrawal, abuse, metabolic, vitamin deficiencies, toxins, SLE

Question 6

Amnesic syndrome?

Answer 6

Preserved global intellectual abilities
Anterograde amnesia
Retrograde amnesia
Preserved registration/working memory
Preserved procedural memory

Question 7

Causes of amnesic syndrome

hippocampal

Answer 7

HSV encephalitis
Anoxia
Removal of temporal lobes
Bilateral posterior cerebral artery occlusion
Closed head injury
Early alzheimers

Question 8

Causes of amnesic syndrome

Diencephalic damage

Answer 8

Korsakoff’s syndrome
3rd ventricle tumours and cysts
Bilateral thalamic infarction
Post SAH (esp. anterior communicating artery aneurysms)