期刊名称:Revue de Neuropsychologie Neurosciences Cognitives et Cliniques
印刷版ISSN:2101-6739
电子版ISSN:2102-6025
出版年度:2017
卷号:9
期号:4
页码:213-217
DOI:10.1684/nrp.2017.0431
出版社:John Libbey Eurotext
摘要:Dissociative amnesias have been reported in neurological episodes, mild enough not to cause any visible lesions in morphological examination. Disproportionate retrograde amnesia with or without identity lost occurs in the context of psychological trauma (known or not). In metabolic imaging studies, some authors have reported functional alterations, particularly in the bilateral hippocampus, right temporal regions and inferior lateral prefrontal cortex, despite normal morphological imaging. To avoid the presumption an organic, psychogenic or mixed origin for such changes, De Renzi suggested the term of functional amnesia to speak about them. Patients recovered, sometimes during an event similar to one preceding the amnesia, in a spectacular fashion or never. These observations suggest control by the frontal cortex, repression which blocks mnestic traces in a new emotional and biological context.