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Related Experiment Video

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Inducing Post-Traumatic Epilepsy in a Mouse Model of Repetitive Diffuse Traumatic Brain Injury

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Published on: February 10, 2020

Transient epileptic amnesia.

Adam Zeman¹, Christopher Butler

¹Peninsula Medical School, University of Exeter, Exeter, Devon, UK. adam.zeman@pms.ac.uk

Current Opinion in Neurology

|October 2, 2010

Summary

This summary is machine-generated.

Transient epileptic amnesia, a form of temporal lobe epilepsy, causes brief memory loss episodes. This condition is linked to unique memory problems like accelerated forgetting, even when standard tests appear normal.

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Published on: June 21, 2019

Area of Science:

Neurology
Neuroscience
Epilepsy Research

Background:

Epilepsy can manifest as amnesic episodes, a possibility suggested by case reports over the last century.
Recent research confirms epilepsy can cause amnesia and associated interictal memory disturbances.

Purpose of the Study:

To review the current understanding of transient epileptic amnesia (TEA).
To highlight the characteristic memory impairments associated with TEA.

Main Methods:

Review of historical case reports and recent research findings on epilepsy and amnesia.
Clinical description and characterization of the TEA syndrome.

Main Results:

Transient epileptic amnesia is a temporal lobe epilepsy syndrome, primarily affecting middle-aged individuals.
Key features include recurrent brief amnesic attacks, often upon waking.
Associated interictal memory deficits include accelerated long-term forgetting, remote autobiographical memory impairment, and topographical memory deficits.
Seizure focus is in the medial temporal lobes; seizures are treatable, but interictal impairments often persist.

Conclusions:

Transient epileptic amnesia is an under-recognized, treatable cause of transient memory loss.
Accelerated long-term forgetting and autobiographical amnesia explain memory complaints despite normal test performance in epilepsy patients.
Further research into these memory impairments may illuminate human memory processes.