Organic Mental Disorder Flashcards

1
Q

What is anterograde amnesia?

A

Anterograde amnesia is a loss of the ability to create new memories after the event that caused the amnesia, leading to a partial or complete inability to recall the recent past, while long-term memories from before the event remains intact.

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2
Q

What are characteristics of amnesic syndrome?

A
  • preseeved global intellectual abilities
  • anterograde amnesia
  • retrograde amnesia
  • preserved registration/ working memory
  • preserved procedural (implicit) memory
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3
Q

What are possible causes of amnesic syndrome?

A
  • hippocampal damage

- diencephalic damage

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4
Q

What can cause hippocampal damage that can lead to amnesic syndrome?

A
  • herpes simplex encephalitis
  • anoxia
  • surgical removal of temporal lobes
  • bilateral posterior cerebral artery occlusion
  • closed head injury
  • early Alzheimer’s disease
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5
Q

What can cause diencephalic damage that can lead to amnesic syndrome?

A
  • Korsakoff’s syndrome
  • 3rd ventricle tumours and cysts
  • bilateral thalamic infarction
  • post subarachnoid haemorrhage, especially from anterior communicating artery aneurysms
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