Chapter

Interictal memory disturbance: a comparative phenomenology and epidemiology of memory impairment in epilepsies

Hennric Jokeit, Simone Bosshardt and Victoria Reed

in Epilepsy and Memory

Published in print June 2012 | ISBN: 9780199580286
Published online September 2012 | e-ISBN: 9780191739408 | DOI: http://dx.doi.org/10.1093/acprof:oso/9780199580286.003.0004
Interictal memory disturbance: a comparative phenomenology and epidemiology of memory impairment in epilepsies

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This chapter highlights common and divergent pathways of memory impairment by comparing symptoms of memory deficits and underlying pathology in a representative selection of neurological and psychiatric disorders: idiopathic generalized (IGE) and focal epilepsies (mesial-temporal epilepsy, MTLE; frontal lobe epilepsy, FLE), normal ageing, ADHD, schizophrenia, major depression, multiple sclerosis, Alzheimer's disease, vascular dementia, frontotemporal dementia, dementia with Lewy bodies, Parkinson's disease dementia, and Huntington's disease. The analysis reveals that impairments in memory encoding and memory retrieval are a common feature in all selected disorders, as well as in normal ageing. This implies that the majority of memory failures in those patients may arise from transient or chronic prefrontal dysfunction. Retention, in contrast, seems to be almost exclusively affected in Alzheimer's dementia and MTLE, as it depends on the functional integrity of the hippocampal formation and anterior diencephalic structures.

Keywords: epilepsy; ADHD; schizophrenia; depression; multiple sclerosis; Alzheimer's disease; dementia; Huntington's disease; Parkinson's disease

Chapter.  9288 words.  Illustrated.

Subjects: Neuroscience

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