AMNESIA

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Case Study: Clive Wearing

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chapter 2: system unit: processing and memory.

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Multi store model of memory

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AMNESIA

Selective Amnesia

patients forget certain parts of their memory

often used for treatment purposes in psychiatry

Epileptic Amnesia

in epilepsy patients

response to some anti-epilepsy drugs

Memories of Habits

Procedural memory

Memories of Facts

Declarative memory

Memory processes

Recall

Storage

Encoding

Anterograde amnesia

patients can learn how to take care of themselves and develop procedural memory.

Also a stroke, trauma, surgery, encephalitis, alcoholism, Wernicke-Korsakoff syndrome, anoxia to the brain, etc.

Damage to the hippocampus can result in anterograde amnesia

affects the ability to form new memories but not memories of the past.

Drug-Induced Amnesia

unable to recall events that occurred when under the influence of the drug

Amnesia in Korsakoff’s Syndrome

occurs in chronic alcoholics or malnutrited patients

presence of both anterograde and retrograde amnesia.

Transient Global Amnesia

discrete and reversible loss of retrograde memory function

abnormalities in the hippocampal area, transient reduced cerebral blood flow, transient seizures, or migraine attacks

Infantile Amnesia

unable to recall events from their early childhood

due to the development of the brain at an early age

Post-traumatic Amnesia

caused by any trauma or injury to the head.

anterograde amnesia, retrograde amnesia, or both

temporary or permanent

Dissociative Amnesia

episodic memory loss.

psychological causes

Physical or psychological trauma, Nutrient Deficiencies, Electroconvulsive Therapy, Clinical Features, Effect of Amnesia on Declarative Information,

Retrograde amnesia

CAUSES

Also cerebrovascular accidents, stroke, head trauma, substances abuse, etc.

Sometimes when the hippocampus is damaged

Inability to recall the past