A pathological impairment of memory. Specify the affected time period, task and process rather than assuming loss of all forms of learning or all prior knowledge.
Memory impairment associated with diencephalic damage, including thalamic or mammillary pathways. Connected cortical dysfunction and accompanying pathology complicate precise localization.
A severe amnesic syndrome associated with thiamine deficiency, often but not exclusively in the context of alcohol misuse. Its eponym refers to Sergei Korsakoff. Co-occurring damage varies across patients, making comparison with non-amnesic pathological controls valuable.
Loss or impaired retrieval of information acquired before onset of the condition. Its temporal extent and detail can differ from deficits in new learning.
Impaired formation or retention of new memories after onset of the condition, distinct from a general loss of sensory perception or intelligence.
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