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The Still Enigmatic Syndrome of Transient Global Amnesia: Interactions Between Neurological and Psychopathological Factors

Content Provider	Springer Nature Link
Author	ël, Audrey Quinette, Peggy Hainselin, Mathieu Dayan, Jacques Viader, Fausto Desgranges, Béatrice Eustache, Francis
Copyright Year	2015
Abstract	Transient global amnesia (TGA) is a neurological syndrome that usually occurs in middle-aged or older people. It is characterized by the abrupt onset of profound anterograde amnesia, associated with more variable retrograde amnesia and repetitive questioning. The whole episode lasts no more than 24 h. Almost 60 years after its first descriptions, the etiology of TGA remains unknown. Until now, TGA has been described exclusively as a memory disorder, but there is a growing body of evidence to show that emotional and psychological factors (as anxious and depressive symptoms) are present at different times of TGA. Their role therefore needs to be clarified. First, these factors seem to play a part in triggering TGA, at least for a subgroup of patients, suggesting the existence of an emotional TGA subtype. Second, recent research shows that almost all the TGA patients displayed modifications of their emotional state during the episode, possibly linked to sudden memory loss. The level of depressive and anxious symptoms could even reach a pathological threshold in patients with the so-called “emotional TGA subtype”. Third, the persistence of these depressive and anxious symptoms after the end of the episode could account for lasting memory disorders in some patients. Finally, the analysis of these emotional syndrome and emotional factors and the recent data in neuroimaging could allow us to gain a better understanding of the pathophysiological mechanisms behind TGA. The aim of this review was thus to discuss whether the anxious and depressive symptoms are causative, resultant or coincidental of TGA.
Starting Page	125
Ending Page	133
Page Count	9
File Format	PDF
ISSN	10407308
Journal	Neuropsychology Review
Volume Number	25
Issue Number	2
e-ISSN	15736660
Language	English
Publisher	Springer US
Publisher Date	2015-04-14
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Transient global amnesia Emotion Memory Pathophysiology Psychopathological factors Neurosciences Neuropsychology Neurology
Content Type	Text
Resource Type	Article
Subject	Neuropsychology and Physiological Psychology

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