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Different structural correlates for verbal memory impairment in temporal lobe epilepsy with and without mesial temporal lobe sclerosis

Mueller, Susanne G. ; Laxer, Kenneth D. ; Scanlon, Cathy ; Garcia, Paul ; McMullen, William J. ; Loring, David W. ; Meador, Kimford J. ; Weiner, Michael W.

Human brain mapping, 2012-02, Vol.33 (2), p.489-499 [Periódico revisado por pares]

Hoboken: Wiley Subscription Services, Inc., A Wiley Company

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Título:
Different structural correlates for verbal memory impairment in temporal lobe epilepsy with and without mesial temporal lobe sclerosis
Autor: Mueller, Susanne G. ; Laxer, Kenneth D. ; Scanlon, Cathy ; Garcia, Paul ; McMullen, William J. ; Loring, David W. ; Meador, Kimford J. ; Weiner, Michael W.
Assuntos: Adult ; Biological and medical sciences ; Brain Diseases - etiology ; CA1 ; CA3 ; dentate gyrus ; Epilepsy, Temporal Lobe - complications ; Epilepsy, Temporal Lobe - pathology ; Epilepsy, Temporal Lobe - psychology ; Female ; Fundamental and applied biological sciences. Psychology ; fusiform ; Hippocampus - pathology ; Human ; Humans ; Image Processing, Computer-Assisted ; Investigative techniques, diagnostic techniques (general aspects) ; Learning. Memory ; Magnetic Resonance Imaging ; Male ; Medical sciences ; Memory ; Memory Disorders - complications ; Memory Disorders - pathology ; mesial temporal sclerosis ; Middle Aged ; MRI ; Nervous system ; Neuropsychological Tests ; Psychology. Psychoanalysis. Psychiatry ; Psychology. Psychophysiology ; Radiodiagnosis. Nmr imagery. Nmr spectrometry ; recall ; recognition ; Sclerosis ; Temporal Lobe - pathology ; TLE ; Young Adult
É parte de: Human brain mapping, 2012-02, Vol.33 (2), p.489-499
Notas: ArticleID:HBM21226
ark:/67375/WNG-1LNLW5KF-T
National Institutes of Health - No. RO1-NS31966
istex:D01577CD50EAEBBB1D8A4E7FD4BFBE3B0873DC79
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: Objectives: Memory impairment is one of the most prominent cognitive deficits in temporal lobe epilepsy (TLE). The overall goal of this study was to explore the contribution of cortical and hippocampal (subfield) damage to impairment of auditory immediate recall (AIMrecall), auditory delayed recall (ADMrecall), and auditory delayed recognition (ADMrecog) of the Wechsler Memory Scale III (WMS‐III) in TLE with (TLE–MTS) and without hippocampal sclerosis (TLE‐no). It was hypothesized that volume loss in different subfields determines memory impairment in TLE–MTS and temporal neocortical thinning in TLE‐no. Methods: T1 whole brain and T2‐weighted hippocampal magnetic resonance imaging and WMS‐III were acquired in 22 controls, 18 TLE–MTS, and 25 TLE‐no. Hippocampal subfields were determined on the T2 image. Free surfer was used to obtain cortical thickness averages of temporal, frontal, and parietal cortical regions of interest (ROI). MANOVA and stepwise regression analysis were used to identify hippocampal subfields and cortical ROI significantly contributing to AIMrecall, ADMrecall, and ADMrecog. Results: In TLE–MTS, AIMrecall was associated with cornu ammonis 3 (CA3) and dentate (CA3&DG) and pars opercularis, ADMrecall with CA1 and pars triangularis, and ADMrecog with CA1. In TLE‐no, AIMrecall was associated with CA3&DG and fusiform gyrus (FUSI), and ADMrecall and ADMrecog were associated with FUSI. Conclusion: The study provided the evidence for different structural correlates of the verbal memory impairment in TLE–MTS and TLE‐no. In TLE–MTS, the memory impairment was mainly associated by subfield‐specific hippocampal and inferior frontal cortical damage. In TLE‐no, the impairment was associated by mesial–temporal cortical and to a lesser degree hippocampal damage. Hum Brain Mapp, 2012. © 2011 Wiley Periodicals, Inc.
Editor: Hoboken: Wiley Subscription Services, Inc., A Wiley Company
Idioma: Inglês

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Different structural correlates for verbal memory impairment in temporal lobe epilepsy with and without mesial temporal lobe sclerosis

Mueller, Susanne G. ; Laxer, Kenneth D. ; Scanlon, Cathy ; Garcia, Paul ; McMullen, William J. ; Loring, David W. ; Meador, Kimford J. ; Weiner, Michael W.

Hoboken: Wiley Subscription Services, Inc., A Wiley Company

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