retrograde amnesia

amnesia /am·ne·sia/ (am-ne´zhah) pathologic impairment of memory.

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anterograde amnesia  amnesia for events occurring subsequent to the episode precipitating the disorder.

dissociative amnesia  a dissociative disorder characterized by a sudden loss of memory for important personal information and which is not due to the direct effects of a psychogenic substance or a general medical condition.

psychogenic amnesia  dissociative a.

retrograde amnesia  amnesia for events occurring prior to the episode precipitating the disorder.

transient global amnesia  a temporary episode of short-term memory loss without other neurological impairment.

visual amnesia  alexia.

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retrograde amnesia

n.

A condition in which events that occurred before the onset of amnesia cannot be recalled.

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retrograde amnesia,

the loss of memory for events occurring before a particular time in a person's life, usually before the event that precipitated the amnesia. The condition may result from disease, brain injury or damage, or a traumatic emotional incident. Compare anterograde amnesia.

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retrograde amnesia

Neurology Amnesia that extends to before the trauma or events that caused the loss of memory. See Amnesia. Cf Anterograde amnesia.