Amnesia MRI: Difference between revisions
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==Overview== | ==Overview== | ||
Psychogenic amnesia is defined by the lack of structural damage to the brain, but upon [[Medical imaging|functional imaging]], abnormal brain activity can be seen. Tests using [[functional magnetic resonance imaging]] suggest that patients with psychogenic amnesia are unable to retrieve emotional memories normally during the amnesic period, suggesting that changes in the limbic functions are related to the symptoms of psychogenic amnesia.<ref name = Yang>{{cite journal |author=Yang JC, Jeong GW, Lee MS, ''et al'' |title=Functional MR imaging of psychogenic amnesia: a case report |journal=Korean J Radiol |volume=6 |issue=3 |pages=196–9 |year=2005 |pmid=16145296 |doi=}}</ref> | *[[Psychogenic amnesia]] is defined by the lack of structural damage to the brain, but upon [[Medical imaging|functional imaging]], abnormal brain activity can be seen. Tests using [[functional magnetic resonance imaging]] suggest that patients with psychogenic amnesia are unable to retrieve emotional memories normally during the amnesic period, suggesting that changes in the limbic functions are related to the symptoms of psychogenic amnesia.<ref name = Yang>{{cite journal |author=Yang JC, Jeong GW, Lee MS, ''et al'' |title=Functional MR imaging of psychogenic amnesia: a case report |journal=Korean J Radiol |volume=6 |issue=3 |pages=196–9 |year=2005 |pmid=16145296 |doi=}}</ref> | ||
*In [[transient epileptic amnesia]] [[MRI]] is usually normal. However, in some [[patients]] [[frontal]] and [[temporal lobe]] abnormalities have been observed.<ref name="pmid31555199">{{cite journal| author=Ramanan VK, Morris KA, Graff-Radford J, Jones DT, Burkholder DB, Britton JW | display-authors=etal| title=Transient Epileptic Amnesia: A Treatable Cause of Spells Associated With Persistent Cognitive Symptoms. | journal=Front Neurol | year= 2019 | volume= 10 | issue= | pages= 939 | pmid=31555199 | doi=10.3389/fneur.2019.00939 | pmc=6724577 | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=31555199 }} </ref> | |||
==References== | ==References== | ||
Revision as of 02:52, 23 March 2021
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Amnesia Microchapters |
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Amnesia MRI On the Web |
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American Roentgen Ray Society Images of Amnesia MRI |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
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Overview
- Psychogenic amnesia is defined by the lack of structural damage to the brain, but upon functional imaging, abnormal brain activity can be seen. Tests using functional magnetic resonance imaging suggest that patients with psychogenic amnesia are unable to retrieve emotional memories normally during the amnesic period, suggesting that changes in the limbic functions are related to the symptoms of psychogenic amnesia.[1]
- In transient epileptic amnesia MRI is usually normal. However, in some patients frontal and temporal lobe abnormalities have been observed.[2]
References
- ↑ Yang JC, Jeong GW, Lee MS; et al. (2005). "Functional MR imaging of psychogenic amnesia: a case report". Korean J Radiol. 6 (3): 196–9. PMID 16145296.
- ↑ Ramanan VK, Morris KA, Graff-Radford J, Jones DT, Burkholder DB, Britton JW; et al. (2019). "Transient Epileptic Amnesia: A Treatable Cause of Spells Associated With Persistent Cognitive Symptoms". Front Neurol. 10: 939. doi:10.3389/fneur.2019.00939. PMC 6724577 Check
|pmc=value (help). PMID 31555199.