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Monteagudo-Gimeno E, Sánchez-González R, Raduà-Castaño J, Fortea-González L, Boget-Llucià T, Carreño-Martínez M, Donaire-Pedraza A, Bargalló-Alabart N, Setoain-Perego X, Rumià-Arboix J, Bulbena-Vilarrasa A, Pintor-Pérez L. Association between depressive and anxious symptoms with cognitive function and quality of life in drug-resistant epilepsy. Heliyon 2023; 9:e20903. [PMID: 37886767 PMCID: PMC10597766 DOI: 10.1016/j.heliyon.2023.e20903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 10/05/2023] [Accepted: 10/10/2023] [Indexed: 10/28/2023] Open
Abstract
•Depressive/anxious disorders and cognitive impairment are frequent comorbidities in epilepsy and have a more deleterious effect in DRE.•Studies concerning the relationship between anxiety and depression and cognitive performance in DRE are scarce.•Higher scores in HADS are associated with lower QOLIE-31 scores and might be considered as predictors of QOL in DRE.•A relationship between anxious and depressive symptoms -measured with HADS and SCL-90R- and cognition might not exist.•There remains an unexplored study area regarding this relationship which requires more attention to improve the assessment of DRE.
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Affiliation(s)
- E. Monteagudo-Gimeno
- Department of Psychiatry and Forensic Medicine, School of Medicine, Universitat Autònoma de Barcelona, Bellaterra, Cerdanyola del Vallès, Spain
- Benito Menni Mental Health Care Complex, Sant Boi de Llobregat, Barcelona, Spain
| | - R. Sánchez-González
- Department of Psychiatry, Institut de Neuropsiquiatria i Addiccions, Hospital del Mar, Barcelona, Spain
- IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
| | - J. Raduà-Castaño
- Biomedical Research Institute August Pi i Sunyer (IDIBAPS), Hospital Clinic of Barcelona, Barcelona, Spain
- FIDMAG Research Foundation, Sant Boi de Llobregat, Barcelona, Spain
- Biomedical Network Research Centre on Mental Health (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain
- Centre for Psychiatric Research and Education, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - L. Fortea-González
- Biomedical Research Institute August Pi i Sunyer (IDIBAPS), Hospital Clinic of Barcelona, Barcelona, Spain
- Biomedical Network Research Centre on Mental Health (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain
- Clinical Institute of Neurosciences, Hospital Clinic of Barcelona, Barcelona, Spain
| | - T. Boget-Llucià
- Biomedical Research Institute August Pi i Sunyer (IDIBAPS), Hospital Clinic of Barcelona, Barcelona, Spain
- Clinical Institute of Neurosciences, Hospital Clinic of Barcelona, Barcelona, Spain
- Epilepsy Unit, Neurology Department, Hospital Clinic of Barcelona, Barcelona, Spain
| | - M. Carreño-Martínez
- Biomedical Research Institute August Pi i Sunyer (IDIBAPS), Hospital Clinic of Barcelona, Barcelona, Spain
- Clinical Institute of Neurosciences, Hospital Clinic of Barcelona, Barcelona, Spain
- Epilepsy Unit, Neurology Department, Hospital Clinic of Barcelona, Barcelona, Spain
| | - A. Donaire-Pedraza
- Biomedical Research Institute August Pi i Sunyer (IDIBAPS), Hospital Clinic of Barcelona, Barcelona, Spain
- Clinical Institute of Neurosciences, Hospital Clinic of Barcelona, Barcelona, Spain
- Epilepsy Unit, Neurology Department, Hospital Clinic of Barcelona, Barcelona, Spain
| | - N. Bargalló-Alabart
- Biomedical Research Institute August Pi i Sunyer (IDIBAPS), Hospital Clinic of Barcelona, Barcelona, Spain
- Epilepsy Unit, Neurology Department, Hospital Clinic of Barcelona, Barcelona, Spain
| | - X. Setoain-Perego
- Biomedical Research Institute August Pi i Sunyer (IDIBAPS), Hospital Clinic of Barcelona, Barcelona, Spain
- Clinical Institute of Neurosciences, Hospital Clinic of Barcelona, Barcelona, Spain
- Epilepsy Unit, Neurology Department, Hospital Clinic of Barcelona, Barcelona, Spain
- Biomedical Imaging Group, Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Barcelona, Spain
| | - J. Rumià-Arboix
- Clinical Institute of Neurosciences, Hospital Clinic of Barcelona, Barcelona, Spain
- Epilepsy Unit, Neurology Department, Hospital Clinic of Barcelona, Barcelona, Spain
| | - A. Bulbena-Vilarrasa
- Department of Psychiatry and Forensic Medicine, School of Medicine, Universitat Autònoma de Barcelona, Bellaterra, Cerdanyola del Vallès, Spain
- Department of Psychiatry, Institut de Neuropsiquiatria i Addiccions, Hospital del Mar, Barcelona, Spain
| | - L. Pintor-Pérez
- Biomedical Research Institute August Pi i Sunyer (IDIBAPS), Hospital Clinic of Barcelona, Barcelona, Spain
- Clinical Institute of Neurosciences, Hospital Clinic of Barcelona, Barcelona, Spain
- Consultation-Liaison Service, Department of Psychiatry, Institut de Neurociències, Universitat de Barcelona, Hospital Clínic i Provincial de Barcelona, Barcelona, Spain
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Billig AJ, Lad M, Sedley W, Griffiths TD. The hearing hippocampus. Prog Neurobiol 2022; 218:102326. [PMID: 35870677 PMCID: PMC10510040 DOI: 10.1016/j.pneurobio.2022.102326] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 06/08/2022] [Accepted: 07/18/2022] [Indexed: 11/17/2022]
Abstract
The hippocampus has a well-established role in spatial and episodic memory but a broader function has been proposed including aspects of perception and relational processing. Neural bases of sound analysis have been described in the pathway to auditory cortex, but wider networks supporting auditory cognition are still being established. We review what is known about the role of the hippocampus in processing auditory information, and how the hippocampus itself is shaped by sound. In examining imaging, recording, and lesion studies in species from rodents to humans, we uncover a hierarchy of hippocampal responses to sound including during passive exposure, active listening, and the learning of associations between sounds and other stimuli. We describe how the hippocampus' connectivity and computational architecture allow it to track and manipulate auditory information - whether in the form of speech, music, or environmental, emotional, or phantom sounds. Functional and structural correlates of auditory experience are also identified. The extent of auditory-hippocampal interactions is consistent with the view that the hippocampus makes broad contributions to perception and cognition, beyond spatial and episodic memory. More deeply understanding these interactions may unlock applications including entraining hippocampal rhythms to support cognition, and intervening in links between hearing loss and dementia.
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Affiliation(s)
| | - Meher Lad
- Translational and Clinical Research Institute, Newcastle University Medical School, Newcastle upon Tyne, UK
| | - William Sedley
- Translational and Clinical Research Institute, Newcastle University Medical School, Newcastle upon Tyne, UK
| | - Timothy D Griffiths
- Biosciences Institute, Newcastle University Medical School, Newcastle upon Tyne, UK; Wellcome Centre for Human Neuroimaging, UCL Queen Square Institute of Neurology, University College London, London, UK; Human Brain Research Laboratory, Department of Neurosurgery, University of Iowa Hospitals and Clinics, Iowa City, USA
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Adotevi N, Kapur J. Focal impaired awareness seizures in a rodent model: A functional anatomy. Epilepsia Open 2022; 7:110-123. [PMID: 34822222 PMCID: PMC8886100 DOI: 10.1002/epi4.12563] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 11/17/2021] [Accepted: 11/23/2021] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVE Patients with temporal lobe epilepsy (TLE) frequently report debilitating comorbidities such as memory impairments, anxiety, and depression. An extensive neuronal network generates epileptic seizures and associated comorbidities, but a detailed description of this network is unavailable, which requires the generation of neuronal activation maps in experimental animals. METHODS We recorded electrographic seizures from the hippocampi during a kindling-evoked focal impaired awareness seizure with observed freezing, facial twitching, and involuntary head bobbing. We mapped seizure circuits activated during these seizures by permanently tagging neurons through activity-induced immediate early genes, combined with immunohistochemical approaches. RESULTS There was bilateral activation of circuits necessary for memory consolidation, including the hippocampal complex, entorhinal cortex, cingulate gyrus, retrosplenial cortex, piriform cortex, and septohippocampal complex in kindled animals compared with unstimulated awake behaving mice. Neuronal circuits in the ventral hippocampus, amygdala, and anterior cingulate cortex, which regulate the stress response of hypothalamic-pituitary-adrenal axis, were also markedly activated during a focal impaired awareness seizure. SIGNIFICANCE This study highlights neuronal circuits preferentially activated during a focal awareness impaired seizure in a rodent model. Many of the seizure-activated neuronal circuits are critical modulators of memory consolidation and long-term stress/depression response. The hijack of these memory and depression regulatory systems by a focal seizure could account for the frequent reports of comorbidities such as memory impairment and depression in many TLE patients.
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Affiliation(s)
- Nadia Adotevi
- Department of NeurologyUniversity of VirginiaCharlottesvilleVirginiaUSA
| | - Jaideep Kapur
- Department of NeurologyUniversity of VirginiaCharlottesvilleVirginiaUSA
- UVA Brain InstituteUniversity of VirginiaCharlottesvilleVirginiaUSA
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David CV, Redekopp C, Fay-McClymont TB, MacAllister WS. Emotional functioning in pediatric epilepsy: Evidence of greater externalizing behavior with left hemisphere onset. Epilepsy Behav 2021; 117:107851. [PMID: 33640564 DOI: 10.1016/j.yebeh.2021.107851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 02/05/2021] [Accepted: 02/06/2021] [Indexed: 10/22/2022]
Abstract
Though it is wellknown that psychiatric concerns are common in children with epilepsy, factors predicting such problems are not well understood. The present investigation studied rates of parent-reported psychological concerns in clinically referred children with epilepsy. Further, it investigated differences in psychological distress across epilepsy subtypes (i.e., focal, generalized, mixed), relationships with epilepsy severity variables, gender, and lateralization of seizure foci. The parents of 170 children and adolescents (ages 6-18 years, 78 girls, 92 boys) completed the Child Behavior Checklist (CBCL). Scale elevation frequencies (T-scores ≥ 65) were calculated and Chi square analyses examined rates of elevations between epilepsy groups. Internalizing problems (32.4%) were more common than externalizing problems (17.1%) for the sample, with attention problems being the most common concern across all epilepsy types (48.8%). While there were no significant relationships between epilepsy severity variables and CBCL broadband scales, the Total Problems scale was inversely related to intellectual functioning (r = -0.174, p = 0.023). Rates of anxiety and depression did not differ across epilepsy subtypes and no gender differences were found. Those with left-sided epilepsy had higher rates of externalizing problems (33.2%) than those with right (14.0%; χ2[1, 88] = 4.55, p = 0.03), with rule-breaking behaviors (15.4%) being more common in left-hemisphere epilepsy (15.4% versus 2.3%; χ2[1,88] = 4.66, p = 0.03). In summary, while no significant differences were found across epilepsy groups, the current study adds to the literature regarding lateralization effects and mood/behavior, with more externalizing problems in those with left hemisphere epilepsy.
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Affiliation(s)
- Claire V David
- Neuropsychology Service, Alberta Children's Hospital, 28 Oki Drive, Calgary, AB T3B6A8, Canada.
| | - Carlie Redekopp
- Neuropsychology Service, Alberta Children's Hospital, 28 Oki Drive, Calgary, AB T3B6A8, Canada.
| | - Taryn B Fay-McClymont
- Neuropsychology Service, Alberta Children's Hospital, 28 Oki Drive, Calgary, AB T3B6A8, Canada; Department of Pediatrics, University of Calgary, 2500 University Drive, Calgary, AB T2N1N4, Canada; Alberta Children's Hospital Research Institute, 28 Oki Drive, Calgary, AB T3B6A8, Canada.
| | - William S MacAllister
- Neuropsychology Service, Alberta Children's Hospital, 28 Oki Drive, Calgary, AB T3B6A8, Canada; Department of Pediatrics, University of Calgary, 2500 University Drive, Calgary, AB T2N1N4, Canada; Alberta Children's Hospital Research Institute, 28 Oki Drive, Calgary, AB T3B6A8, Canada; Department of Clinical Neurosciences, University of Calgary, 2500 University Drive, Calgary, AB T2N1N4, Canada.
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Adamczyk B, Węgrzyn K, Wilczyński T, Maciarz J, Morawiec N, Adamczyk-Sowa M. The Most Common Lesions Detected by Neuroimaging as Causes of Epilepsy. ACTA ACUST UNITED AC 2021; 57:medicina57030294. [PMID: 33809843 PMCID: PMC8004256 DOI: 10.3390/medicina57030294] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 03/12/2021] [Accepted: 03/16/2021] [Indexed: 11/24/2022]
Abstract
Epilepsy is a common neurological disorder characterized by chronic, unprovoked and recurrent seizures, which are the result of rapid and excessive bioelectric discharges in nerve cells. Neuroimaging is used to detect underlying structural abnormalities which may be associated with epilepsy. This paper reviews the most common abnormalities, such as hippocampal sclerosis, malformations of cortical development and vascular malformation, detected by neuroimaging in patients with epilepsy to help understand the correlation between these changes and the course, treatment and prognosis of epilepsy. Magnetic resonance imaging (MRI) reveals structural changes in the brain which are described in this review. Recent studies indicate the usefulness of additional imaging techniques. The use of fluorodeoxyglucose positron emission tomography (FDG-PET) improves surgical outcomes in MRI-negative cases of focal cortical dysplasia. Some techniques, such as quantitative image analysis, magnetic resonance spectroscopy (MRS), functional MRI (fMRI), diffusion tensor imaging (DTI) and fibre tract reconstruction, can detect small malformations—which means that some of the epilepsies can be treated surgically. Quantitative susceptibility mapping may become the method of choice in vascular malformations. Neuroimaging determines appropriate diagnosis and treatment and helps to predict prognosis.
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Emotion and mood disorders associated with epilepsy. HANDBOOK OF CLINICAL NEUROLOGY 2021; 183:169-173. [PMID: 34389116 DOI: 10.1016/b978-0-12-822290-4.00008-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Epilepsy is a disorder characterized by recurrent seizures. Epilepsy can alter mood and emotions. Treatments for epilepsy can also alter mood and emotions. This chapter reviews the emotional changes that can occur before, during, and after a seizure, such as fear and anger, the interictal mood disorders associated with epilepsy, such as depression and anxiety, as well as alterations of emotional processing including comprehending and expressing emotional prosody and faces. The possible treatments of these emotional and mood disorders are also reviewed.
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Figueiredo NSVD, Cavalcanti MM, Gaça LB, Noffs MHDS, Sousa AVM, Alonso NB, Mazetto L, de Araújo Filho GM, Yacubian EMT, Guilhoto LM. Neuropsychological findings related to the presence of pre-surgical comorbid depression in Latin-American patients with mesial temporal lobe epilepsy and hippocampal sclerosis. Seizure 2020; 81:96-103. [PMID: 32771825 DOI: 10.1016/j.seizure.2020.07.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 07/27/2020] [Accepted: 07/29/2020] [Indexed: 11/08/2022] Open
Abstract
PURPOSE To evaluate the neuropsychological findings related to the presence of pre-surgical comorbid depression in Latin-American patients with mesial temporal lobe epilepsy (MTLE) and unilateral hippocampal sclerosis (HS). METHOD Patients with drug-resistant MTLE and unilateral, left (L-) or right (R-) HS were studied. To diagnose depression, psychiatrists with expertise in epilepsy applied a semi-structured interview based on DSM. The depression group (DG) included patients with a psychiatric diagnosis in addition to a Beck Depression Inventory (BDI) score >16 points, and the non-depression group (NDG) included those without this diagnosis and with a BDI score ≤16. We analysed two clusters of neuropsychological tests, which evaluated memory (Complex Rey Figure III, Logical Memory II and RAVLT VII) and attention plus executive functions (Stroop I/II/III and Trail Making A/B). Moreover, we calculated the z-scores (Zs) using a local control group. The DG was compared to the NDG, independently and according to the HS side, using non-parametrical analyses. Due to the multivariate analysis, the p-value was corrected by applyingpost hoc Bonferroni adjustment. RESULTS We analysed 65 patients. The NDG included 51 (78.4 %) patients, and the DG included 14 (21.5 %) patients. Pre-surgical comorbid depression occurred in eight patients with L- (n = 29) and in six patients with R-MTLE-HS (n = 36). All of these groups had similar gender, age, IQs, and years of schooling. Compared to the healthy subjects, the L-MTLE-HS patients had lower Zs in verbal episodic memory tests [Logical Memory II (p < 0.001), and RAVLT VII (p < 0.001)], and the R-MTLE-HS patients had lower scores in visual episodic memory [Complex Rey Figure III (p < 0.001)]. In the analysis of the DGvs. NDG, there were no differences in the clusters of tests of memory or in those of attention and executive functions. Moreover, when we analysed the patients according to HS side, no neuropsychological difference was observed in the DG and NDG in terms of L- and R-MTLE-HS. CONCLUSIONS The patients with MTLE and unilateral HS in this study showed no differences in memory, attention and executive functions in relation to the presence of pre-surgical comorbid depression and independently of HS side. In this series from Latin-America, this psychiatric comorbidity did not affect cognition more than epilepsy alone.
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Affiliation(s)
- Nathália Stela Visoná de Figueiredo
- Epilepsy Research and Treatment Unit, Department of Neurology and Neurosurgery, Universidade Federal de São Paulo (Unifesp), São Paulo, SP, Brazil.
| | - Maryane Mendes Cavalcanti
- Epilepsy Research and Treatment Unit, Department of Neurology and Neurosurgery, Universidade Federal de São Paulo (Unifesp), São Paulo, SP, Brazil
| | - Larissa Botelho Gaça
- Epilepsy Research and Treatment Unit, Department of Neurology and Neurosurgery, Universidade Federal de São Paulo (Unifesp), São Paulo, SP, Brazil
| | - Maria Helena da Silva Noffs
- Epilepsy Research and Treatment Unit, Department of Neurology and Neurosurgery, Universidade Federal de São Paulo (Unifesp), São Paulo, SP, Brazil
| | - Arthur Victor Menezes Sousa
- Epilepsy Research and Treatment Unit, Department of Neurology and Neurosurgery, Universidade Federal de São Paulo (Unifesp), São Paulo, SP, Brazil
| | - Neide Barreira Alonso
- Epilepsy Research and Treatment Unit, Department of Neurology and Neurosurgery, Universidade Federal de São Paulo (Unifesp), São Paulo, SP, Brazil
| | - Lenon Mazetto
- Epilepsy Research and Treatment Unit, Department of Neurology and Neurosurgery, Universidade Federal de São Paulo (Unifesp), São Paulo, SP, Brazil
| | - Gerardo Maria de Araújo Filho
- Department of Psychiatry and Medical Psychology, Faculdade de Medicina de São José do Rio Preto (Famerp), São José do Rio Preto, SP, Brazil
| | - Elza Márcia Targas Yacubian
- Epilepsy Research and Treatment Unit, Department of Neurology and Neurosurgery, Universidade Federal de São Paulo (Unifesp), São Paulo, SP, Brazil
| | - Laura Maria Guilhoto
- Epilepsy Research and Treatment Unit, Department of Neurology and Neurosurgery, Universidade Federal de São Paulo (Unifesp), São Paulo, SP, Brazil
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Forthoffer N, Kleitz C, Bilger M, Brissart H. Depression could modulate neuropsychological status in epilepsy. Rev Neurol (Paris) 2020; 176:456-467. [PMID: 32414531 DOI: 10.1016/j.neurol.2020.03.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 03/20/2020] [Accepted: 03/23/2020] [Indexed: 12/20/2022]
Abstract
While cognition and depression have often been studied in patients with epilepsy, only a few studies have so far attempted to link these two domains, and more specifically to investigate the specific impact of depression on cognition in epilepsy. In this review, we performed an extensive search of the literature database to provide a better understanding of this subject. Using several inclusion criteria (adult population, quantitative depression/neuropsychological assessment, statistical analyses of the impact of depression on cognitive scores, patients with epilepsy (PWE) and no other neurological disease, and studies including at least 20 patients), we identified 20 articles (out of 712 search results) that investigated both depression and cognition in PWE. Their results were summarized using a narrative and descriptive approach. This review highlights a variable impact of depression on cognition in PWE, depending on the laterality of the seizure onset zone, the type of epilepsy and the surgical context. We emphasize the need for a systematic depression assessment in these patients, especially since depressed PWE will benefit from prompt and appropriate care to help them avoid cognitive decline, particularly in a surgical context.
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Affiliation(s)
- N Forthoffer
- Service de Neurologie, Centre Hospitalier Universitaire de Nancy, 54000 Nancy, France; LNCA, UMR 7364, CNRS et Université de Strasbourg, Strasbourg, France.
| | - C Kleitz
- Service de Neurologie, Hôpital Hautepierre, Centre Hospitalier Universitaire de Strasbourg, Strasbourg, France
| | - M Bilger
- Service de Neurologie, Hôpital Hautepierre, Centre Hospitalier Universitaire de Strasbourg, Strasbourg, France
| | - H Brissart
- Service de Neurologie, Centre Hospitalier Universitaire de Nancy, 54000 Nancy, France; CRAN, UMR 7039, CNRS et Université de Lorraine, Vandoeuvre-lès-Nancy, France
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Pope RA, Thompson PJ, Rantell K, Stretton J, Wright MA, Foong J. Frontal lobe dysfunction as a predictor of depression and anxiety following temporal lobe epilepsy surgery. Epilepsy Res 2019; 152:59-66. [DOI: 10.1016/j.eplepsyres.2019.03.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 03/05/2019] [Accepted: 03/09/2019] [Indexed: 11/26/2022]
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Gascoigne MB, Smith ML, Barton B, Webster R, Gill D, Lah S. Accelerated long-term forgetting and behavioural difficulties in children with epilepsy. Cortex 2019; 110:92-100. [DOI: 10.1016/j.cortex.2018.03.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 08/19/2017] [Accepted: 03/19/2018] [Indexed: 11/24/2022]
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Demin K, Berger J, Holtkamp M, Bengner T. Are mental distress and cognitive impairment related in temporal lobe epilepsy? Epilepsy Res 2018; 146:126-131. [PMID: 30142462 DOI: 10.1016/j.eplepsyres.2018.07.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 07/14/2018] [Accepted: 07/27/2018] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Cognitive impairment and depression often co-exist among patients with epilepsy. However, there is still debate whether depression and cognition are related in patients with temporal lobe epilepsy (TLE). Even if they were related, it is still unclear whether symptoms of depression specifically, or rather symptoms of mental distress in general, have a negative impact on cognition in patients with TLE. In the present study, we examined whether self-rated symptoms of mental distress and of depression are related to different cognitive functions in unilateral TLE. METHODS We retrospectively studied 162 patients undergoing preoperative evaluation for epilepsy surgery (95 patients with left TLE (LTLE) and 67 patients with right TLE (RTLE)). Severity of mental distress and symptoms of depression were measured with the Symptom Checklist-90-Revised (SCL-90-R) and the Beck Depression Inventory (BDI), respectively. Bivariate correlations were calculated between these two measures and neuropsychological measures of verbal recall, figural learning, psychomotor speed, and phonemic word fluency. Due to multiple testing, a corrected level of p < 0.0063 was regarded as significant, only. RESULTS Seventeen and 19% of patients reported meaningful mental distress and meaningful symptoms of depression, respectively. Mental distress highly correlated with symptoms of depression (rs = 0.80). We found no significant correlations of either mental distress or symptoms of depression with measures of cognitive function. CONCLUSIONS In contrast to some former studies with smaller sample sizes, the present study could not detect a relationship of depression with cognitive impairment in patients with unilateral TLE. Likewise, mental distress and cognition were unrelated in our sample of patients. Our results may argue against theoretical models claiming a causal link between depression and cognitive impairment or a common pathogenic mechanism for these conditions in patients with TLE.
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Affiliation(s)
- Katharina Demin
- Epilepsy-Center Berlin-Brandenburg, Department of Epileptology, Evangelisches Krankenhaus Königin Elisabeth Herzberge, Berlin, Germany.
| | - Justus Berger
- Epilepsy-Center Berlin-Brandenburg, Institute for Diagnostics of Epilepsy, Evangelisches Krankenhaus Königin Elisabeth Herzberge, Berlin, Germany.
| | - Martin Holtkamp
- Epilepsy-Center Berlin-Brandenburg, Department of Epileptology, Evangelisches Krankenhaus Königin Elisabeth Herzberge, Berlin, Germany; Epilepsy-Center Berlin-Brandenburg, Institute for Diagnostics of Epilepsy, Evangelisches Krankenhaus Königin Elisabeth Herzberge, Berlin, Germany; Epilepsy-Center Berlin-Brandenburg, Department of Neurology, Charité - Universitätsmedizin, Berlin, Germany.
| | - Thomas Bengner
- Epilepsy-Center Berlin-Brandenburg, Department of Epileptology, Evangelisches Krankenhaus Königin Elisabeth Herzberge, Berlin, Germany.
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Berger J, Plotkin M, Demin K, Holtkamp M, Bengner T. The relationship between structural MRI, FDG-PET, and memory in temporal lobe epilepsy: Preliminary results. Epilepsy Behav 2018; 80:61-67. [PMID: 29414560 DOI: 10.1016/j.yebeh.2017.12.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 12/19/2017] [Accepted: 12/22/2017] [Indexed: 10/18/2022]
Abstract
Structural and metabolic abnormalities of the temporal lobe are frequently found in temporal lobe epilepsy (TLE). In the present retrospective study, we investigated whether structural abnormalities evident in magnetic resonance imaging (MRI) and hypometabolism evident in [18F]fluorodeoxyglucose positron emission tomography (FDG-PET) independently influence verbal and nonverbal learning and delayed memory in patients with TLE. Sixty-eight patients with refractory unilateral TLE (35 left TLE, 33 right TLE) were divided into three groups: (1) no evidence of pathology in either MRI or FDG-PET studies (MRI-/PET-, n=15), (2) temporal FDG-PET determined hypometabolism with normal MRI findings (MRI-/PET+, n=21), and (3) evidence of temporal abnormalities in both MRI and FDG-PET studies (MRI+/PET+, n=32). A fourth group (MRI+/PET-, n=4) was too small for further statistical analysis and could not be included. Patients with MRI+/PET+ showed worse verbal memory than patients with MRI-/PET- (p<0.01), regardless of side of seizure focus. Verbal memory performance of patients with MRI-/PET+ was located between patients with MRI+/PET+ and MRI-/PET-, although group differences did not achieve statistical significance (ps>0.1). No group differences were found for nonverbal memory (p=0.27). Our results may suggest an interactive negative effect of metabolic and structural temporal lobe abnormalities on verbal memory. Still, our results are preliminary and need further validation by studies involving larger patient groups and up-to date quantitative imaging analysis methods.
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Affiliation(s)
- Justus Berger
- Epilepsy-Center Berlin-Brandenburg, Department of Epileptology, Evangelisches Krankenhaus Königin Elisabeth Herzberge, Berlin, Germany.
| | | | - Katharina Demin
- Epilepsy-Center Berlin-Brandenburg, Department of Epileptology, Evangelisches Krankenhaus Königin Elisabeth Herzberge, Berlin, Germany.
| | - Martin Holtkamp
- Epilepsy-Center Berlin-Brandenburg, Department of Epileptology, Evangelisches Krankenhaus Königin Elisabeth Herzberge, Berlin, Germany; Epilepsy-Center Berlin-Brandenburg, Department of Neurology, Charité - Universitätsmedizin, Berlin, Germany.
| | - Thomas Bengner
- Epilepsy-Center Berlin-Brandenburg, Department of Epileptology, Evangelisches Krankenhaus Königin Elisabeth Herzberge, Berlin, Germany.
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Gonçalves EB, de Oliveira Cardoso TAM, Yasuda CL, Cendes F. Depressive disorders in patients with pharmaco-resistant mesial temporal lobe epilepsy. J Int Med Res 2018; 46:752-760. [PMID: 29239239 PMCID: PMC5971495 DOI: 10.1177/0300060517717825] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 06/07/2017] [Indexed: 01/06/2023] Open
Abstract
Objectives To assess depressive disorders in patients with mesial temporal lobe epilepsy (MTLE) refractory to medical treatment. Methods Adult patients with refractory MTLE completed two questionnaires (Mini International Neuropsychiatric Interview (MINI) and the Beck Depression Inventory (BDI) had a semi-structured psychiatric interview and a high resolution MRI scan. For complete neuropsychiatric diagnosis, as per International Classification of Diseases (ICD-10), the results were combined with clinical history and additional information from the patients' family. Results Of the 40 patients identified for this case series study which took place from 2008-2012, 31 (77.5%) had a depressive disorder: 14 had dysthymia, 11 had recurrent depressive disorder and 6 had bipolar disorder. Of the nine patients without a firm diagnosis of mood disorder, seven had isolated symptoms of depression or anxiety and two presented with mixed depression/anxiety symptoms. Only 8/31 (25.8%) patients were receiving antidepressant treatment. There was no association between BDI scores and seizure frequency. No significant difference was found between patients with and without depression and the presence or laterality of HA. Conclusions Depressive disorders are common, underdiagnosed and undertreated in patients with refractory MTLE.
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Affiliation(s)
| | | | - Clarissa Lin Yasuda
- Department of Neurology, University of Campinas – UNICAMP, Campinas, Sao Paulo, Brazil
| | - Fernando Cendes
- Department of Neurology, University of Campinas – UNICAMP, Campinas, Sao Paulo, Brazil
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Rayner G, Tailby C. Current Concepts of Memory Disorder in Epilepsy: Edging Towards a Network Account. Curr Neurol Neurosci Rep 2017. [DOI: 10.1007/s11910-017-0765-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Abstract
First-line treatment for epilepsy is antiepileptic drug and requires an interdisciplinary approach and enduring commitment and adherence from the patient and family for successful outcome. Despite adherence to antiepileptic drugs, refractory epilepsy occurs in approximately 30% of children with epilepsy, and surgical treatment is an important intervention to consider. Surgical management of pediatric epilepsy is highly effective in selected patients with refractory epilepsy; however, an evidence-based protocol, including best methods of presurgical imaging assessments, and neurodevelopmental and/or behavioral health assessments, is not currently available for clinicians. Surgical treatment of epilepsy can be critical to avoid negative outcomes in functional, cognitive, and behavioral health status. Furthermore, it is often the only method to achieve seizure freedom in refractory epilepsy. Although a large literature base can be found for adults with refractory epilepsy undergoing surgical treatment, less is known about how surgical management affects outcomes in children with epilepsy. The purpose of the review was fourfold: (1) to evaluate the available literature regarding presurgical assessment and postsurgical outcomes in children with medically refractory epilepsy, (2) to identify gaps in our knowledge of surgical treatment and its outcomes in children with epilepsy, (3) to pose questions for further research, and (4) to advocate for a more unified presurgical evaluation protocol including earlier referral for surgical candidacy of pediatric patients with refractory epilepsy. Despite its effectiveness, epilepsy surgery remains an underutilized but evidence-based approach that could lead to positive short- and long-term outcomes for children with refractory epilepsy.
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Rayner G, Jackson GD, Wilson SJ. Mechanisms of memory impairment in epilepsy depend on age at disease onset. Neurology 2016; 87:1642-1649. [PMID: 27638925 DOI: 10.1212/wnl.0000000000003231] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Accepted: 05/17/2016] [Indexed: 01/06/2023] Open
Abstract
OBJECTIVE In this study, we aimed to uncover distinct antecedents of autobiographic memory dysfunction in patients with epilepsy with early (childhood/adolescence) vs late (adulthood) disease onset. METHODS One hundred sixty-six adults participated: 92 patients with focal epilepsy, whose cognitive and psychiatric functioning were compared to that of 74 healthy controls. Predictors of autobiographic memory deficit were contrasted between patients with early-onset (n = 47) vs late-onset (n = 45) epilepsy. RESULTS Overall, people with epilepsy performed significantly worse on measures of both semantic and episodic autobiographic memory and showed markedly high rates of depressive symptoms and disorders (p < 0.001). Reduced autobiographic memory in patients with early-onset epilepsy was associated with young age at onset, more frequent seizures, and reduced working memory. In contrast, the difficulty that patients with late-onset epilepsy had in recalling autobiographic information was linked to depression and the presence of an MRI-identified lesion. CONCLUSIONS This study reveals that memory deficits in people with focal epilepsy have differing antecedents depending on the timing of the disease onset. While neurobiological factors strongly underpin reduced autobiographic function in patients with early-onset epilepsy, psychological maladjustment gives rise to the impairments seen in patients with late-onset epilepsy. More broadly, these findings support the practice of subtyping patients according to distinct clinical characteristics to find individualized predictors of cognitive dysfunction.
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Affiliation(s)
- Genevieve Rayner
- From the Melbourne School of Psychological Sciences (G.R., S.J.W.), The University of Melbourne; The Florey Institute of Neuroscience and Mental Health (G.R., G.D.J., S.J.W.), Brain Research Institute, The University of Melbourne, Heidelberg; and Comprehensive Epilepsy Programme (G.D.J., S.J.W.), Austin Health, Melbourne Brain Centre, Heidelberg, Australia.
| | - Graeme D Jackson
- From the Melbourne School of Psychological Sciences (G.R., S.J.W.), The University of Melbourne; The Florey Institute of Neuroscience and Mental Health (G.R., G.D.J., S.J.W.), Brain Research Institute, The University of Melbourne, Heidelberg; and Comprehensive Epilepsy Programme (G.D.J., S.J.W.), Austin Health, Melbourne Brain Centre, Heidelberg, Australia
| | - Sarah J Wilson
- From the Melbourne School of Psychological Sciences (G.R., S.J.W.), The University of Melbourne; The Florey Institute of Neuroscience and Mental Health (G.R., G.D.J., S.J.W.), Brain Research Institute, The University of Melbourne, Heidelberg; and Comprehensive Epilepsy Programme (G.D.J., S.J.W.), Austin Health, Melbourne Brain Centre, Heidelberg, Australia
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Sone D, Ota M, Yokoyama K, Sumida K, Kimura Y, Imabayashi E, Matsuda H, Sato N. Noninvasive evaluation of the correlation between regional cerebral blood flow and intraventricular brain temperature in temporal lobe epilepsy. Magn Reson Imaging 2016; 34:451-4. [DOI: 10.1016/j.mri.2015.12.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Accepted: 12/14/2015] [Indexed: 11/16/2022]
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Pohlmann-Eden B, Aldenkamp A, Baker GA, Brandt C, Cendes F, Coras R, Crocker CE, Helmstaedter C, Jones-Gotman M, Kanner AM, Mazarati A, Mula M, Smith ML, Omisade A, Tellez-Zenteno J, Hermann BP. The relevance of neuropsychiatric symptoms and cognitive problems in new-onset epilepsy - Current knowledge and understanding. Epilepsy Behav 2015; 51:199-209. [PMID: 26291774 DOI: 10.1016/j.yebeh.2015.07.005] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Accepted: 07/03/2015] [Indexed: 01/11/2023]
Abstract
Neurobehavioral and cognition problems are highly prevalent in epilepsy, but most research studies to date have not adequately addressed the precise nature of the relationship between these comorbidities and seizures. To address this complex issue and to facilitate collaborative, innovative research in the rising field of neurobehavioral comorbidities and cognition disturbances in new-onset epilepsy, international epilepsy experts met at the 3rd Halifax International Epilepsy Conference & Retreat at White Point, South Shore, Nova Scotia, Canada from September 18 to 20, 2014. This Conference Proceedings provides a summary of the conference proceedings. Specifically, the following topics are discussed: (i) role of comorbidities in epilepsy diagnosis and management, (ii) role of antiepileptic medications in understanding the relationship between epilepsy and neurobehavioral and cognition problems, and (iii) animal data and diagnostic approaches. Evidence to date, though limited, strongly suggests a bidirectional relationship between epilepsy and cognitive and psychiatric comorbidities. In fact, it is likely that seizures and neurobehavioral problems represent different symptoms of a common etiology or network-wide disturbance. As a reflection of this shared network, psychiatric comorbidities and/or cognition problems may actually precede the seizure occurrence and likely get often missed if not screened.
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Affiliation(s)
- B Pohlmann-Eden
- Division of Neurology, Dalhousie University of Halifax, Canada; Brain Repair Center, Dalhousie University of Halifax, Canada.
| | - A Aldenkamp
- Epilepsiecentrum Kempenhaeghe, The Netherlands
| | - G A Baker
- Division of Neurosciences, University of Liverpool, United Kingdom
| | - C Brandt
- Bethel Epilepsy Center, Mara Hospital, Bielefeld, Germany
| | - F Cendes
- Department of Neurology, University of Campinas, São Paulo, Brazil
| | - R Coras
- Department of Neuropathology, University of Erlangen, Germany
| | - C E Crocker
- Division of Neurology, Dalhousie University of Halifax, Canada
| | | | - M Jones-Gotman
- McGill University, Montreal Neurological Institute, Montreal, Canada
| | - A M Kanner
- Epilepsy Center, University of Miami, Miller School of Medicine, USA
| | - A Mazarati
- Children's Discovery and Innovation Institute, D. Geffen School of Medicine at UCLA, Los Angeles, USA
| | - M Mula
- Epilepsy Group, Atkinson Morley Regional Neuroscience Centre, St. George's University Hospitals NHS Foundation Trust and Institute of Medical and Biomedical Sciences St. George's University of London, United Kingdom
| | - M L Smith
- Department of Psychology, University of Toronto, Canada
| | - A Omisade
- Division of Neurology, Dalhousie University of Halifax, Canada
| | | | - B P Hermann
- Department of Neurology, University of Wisconsin School of Medicine and Public Health, Madison, USA
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Andresen EN, Ramirez MJ, Kim KH, Dorfman AB, Haut JS, Klaas PA, Jehi LE, Shea K, Bingaman WE, Busch RM. Effects of surgical side and site on mood and behavior outcome in children with pharmacoresistant epilepsy. Front Neurol 2014; 5:18. [PMID: 24600433 PMCID: PMC3928572 DOI: 10.3389/fneur.2014.00018] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Accepted: 01/31/2014] [Indexed: 11/24/2022] Open
Abstract
Children with epilepsy have a high rate of mood and behavior problems; yet few studies consider the emotional and behavioral impact of surgery. No study to date has been sufficiently powered to investigate effects of both side (left/right) and site (temporal/frontal) of surgery. One hundred patients (aged 6–16) and their families completed measures of depression, anxiety, and behavioral function as part of neuropsychological evaluations before and after surgery for pharmacoresistant epilepsy. Among children who had left-sided surgeries (frontal = 16; temporal = 38), there were significant interactions between time (pre to post-operative neuropsychological assessment) and resection site (frontal/temporal) on anhedonia, social anxiety, and withdrawn/depressed scales. Patients with frontal lobe epilepsy (FLE) endorsed greater pre-surgical anhedonia and social anxiety than patients with temporal lobe epilepsy (TLE) with scores normalizing following surgery. While scores on the withdrawn/depressed scale were similar between groups before surgery, the FLE group showed greater symptom improvement after surgery. In children who underwent right-sided surgeries (FLE = 20; TLE = 26), main effects of time (patients in both groups improved) and resection site (caregivers of FLE patients endorsed greater symptoms than those with TLE) were observed primarily on behavior scales. Individual data revealed that a greater proportion of children with left FLE demonstrated clinically significant improvements in anhedonia, social anxiety, and aggressive behavior than children with TLE. This is the first study to demonstrate differential effects of both side and site of surgery in children with epilepsy at group and individual levels. Results suggest that children with FLE have greater emotional and behavioral dysfunction before surgery, but show marked improvement after surgery. Overall, most children had good emotional and behavioral outcomes, with most scores remaining stable or improving.
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Affiliation(s)
- Elizabeth N Andresen
- Department of Psychiatry and Psychology, Neurological Institute, Cleveland Clinic , Cleveland, OH , USA
| | - Maya J Ramirez
- Department of Psychiatry and Psychology, Neurological Institute, Cleveland Clinic , Cleveland, OH , USA
| | - Kevin H Kim
- Department of Psychology in Education, University of Pittsburgh , Pittsburgh, PA , USA
| | - Ava B Dorfman
- Department of Psychiatry and Psychology, Neurological Institute, Cleveland Clinic , Cleveland, OH , USA
| | - Jennifer S Haut
- Department of Psychiatry and Psychology, Neurological Institute, Cleveland Clinic , Cleveland, OH , USA ; Cleveland Clinic Epilepsy Center, Neurological Institute, Cleveland Clinic , Cleveland, OH , USA
| | - Patricia A Klaas
- Department of Psychiatry and Psychology, Neurological Institute, Cleveland Clinic , Cleveland, OH , USA ; Cleveland Clinic Epilepsy Center, Neurological Institute, Cleveland Clinic , Cleveland, OH , USA
| | - Lara E Jehi
- Cleveland Clinic Epilepsy Center, Neurological Institute, Cleveland Clinic , Cleveland, OH , USA
| | - Katherine Shea
- Cleveland Clinic Epilepsy Center, Neurological Institute, Cleveland Clinic , Cleveland, OH , USA
| | - William E Bingaman
- Cleveland Clinic Epilepsy Center, Neurological Institute, Cleveland Clinic , Cleveland, OH , USA
| | - Robyn M Busch
- Department of Psychiatry and Psychology, Neurological Institute, Cleveland Clinic , Cleveland, OH , USA ; Cleveland Clinic Epilepsy Center, Neurological Institute, Cleveland Clinic , Cleveland, OH , USA
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Dulay MF, Busch RM, Chapin JS, Jehi L, Najm I. Executive functioning and depressed mood before and after unilateral frontal lobe resection for intractable epilepsy. Neuropsychologia 2012; 51:1370-6. [PMID: 22813428 DOI: 10.1016/j.neuropsychologia.2012.07.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2011] [Revised: 05/08/2012] [Accepted: 07/05/2012] [Indexed: 11/20/2022]
Abstract
Executive dysfunction occurs in a variety of patients who have sustained damage to the frontal lobes. In individuals with frontal lobe epilepsy (FLE) or after unilateral frontal lobe resection (FLR), a unique neuropsychological profile linking executive functions (EF) with the frontal lobe has been elusive, with conflicting findings in the literature. Some studies show greater risk of executive impairment with left-sided FLE or FLR, while others report greater risk for right-sided patients. Some studies report no relationship between FLE and EF impairment, while others show EF impairment regardless of side of seizure foci or surgery. In patients with temporal lobe epilepsy, executive dysfunction is associated with depressed mood possibly reflecting disruption of cortical-limbic pathways and/or frontal-striatal circuitry. Although not previously examined, depression level may affect executive functioning in those with FLE or FLR. We hypothesized that FLE patients with poor mood state would show greater executive dysfunction than FLE patients without poor mood state. The relationship among EF, side of surgery and depressed mood before and 8 months after unilateral FLR was evaluated in 64 patients using validated measures of EF and mood state (Beck Depression Inventory-II). Results indicated that individuals with depressed mood before surgery had greater difficulty on a task of mental flexibility compared to patients without preoperative depressed mood. Further, individuals with depressed mood before surgery had significant increases in perseverative responding and completed fewer categories on a card-sorting task after surgery compared to patients without preoperative depressed mood. Regression analyses showed that among side of surgery, seizure freedom status after surgery and depression status, only pre-surgical depression status explained a significant amount of variance in executive functioning performance after surgery. Results suggest that clinically elevated depressive symptoms before surgery are a risk factor for moderate declines in EF after surgery. Results may be attributable to reduced cognitive reserve in patients with depressive symptoms, or may reflect a common cause attributable to damage to unilateral dorsal and ventral lateral frontal lobe.
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Affiliation(s)
- Mario F Dulay
- Department of Neurosurgery, The Methodist Neurological Institute, Houston, TX, USA.
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21
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Garcia CS. Depression in temporal lobe epilepsy: a review of prevalence, clinical features, and management considerations. EPILEPSY RESEARCH AND TREATMENT 2011; 2012:809843. [PMID: 22957244 PMCID: PMC3420378 DOI: 10.1155/2012/809843] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/04/2011] [Accepted: 09/10/2011] [Indexed: 11/17/2022]
Abstract
Depression in temporal lobe epilepsy has been established as a frequent occurrence, and various possible mechanisms for this significant comorbidity have been posited. However, there is still little to guide a clinician in the recognition and management of depression in patients with temporal lobe epilepsy. This is in part due to the lack of consistent findings in earlier studies, which was likely partly due to variabilities in methodology, sampling, and diagnosis of both temporal lobe epilepsy and depression. However, in recent years, significant effort has been made to address these issues and provide a framework for diagnosis and management of depression in this population. The following is a review of the literature, with special emphasis on clinical phenomenology of depressive symptoms, described bidirectional risk between depression and temporal lobe epilepsy, and treatment strategies in the context of potential drug interactions with antiepileptic drugs.
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Affiliation(s)
- C. S. Garcia
- Department of Psychiatry, Schulich School of Medicine, University of Western Ontario, London, ON, Canada N6A 5C1
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Busch RM, Dulay MF, Kim KH, Chapin JS, Jehi L, Kalman CC, Naugle RI, Najm IM. Pre-Surgical Mood Predicts Memory Decline after Anterior Temporal Lobe Resection for Epilepsy. Arch Clin Neuropsychol 2011; 26:739-45. [DOI: 10.1093/arclin/acr067] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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23
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Mueller SG, Laxer KD, Scanlon C, Garcia P, McMullen WJ, Loring DW, Meador KJ, Weiner MW. Different structural correlates for verbal memory impairment in temporal lobe epilepsy with and without mesial temporal lobe sclerosis. Hum Brain Mapp 2011; 33:489-99. [PMID: 21438080 DOI: 10.1002/hbm.21226] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2010] [Revised: 11/17/2010] [Accepted: 11/18/2010] [Indexed: 11/07/2022] Open
Abstract
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.
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Affiliation(s)
- Susanne G Mueller
- Department of Radiology, Center for Imaging of Neurodegenerative Diseases, University of California, San Francisco, CA 94121, USA.
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Presurgical epilepsy localization with interictal cerebral dysfunction. Epilepsy Behav 2011; 20:194-208. [PMID: 21257351 DOI: 10.1016/j.yebeh.2010.12.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2010] [Accepted: 12/07/2010] [Indexed: 11/22/2022]
Abstract
Localization of interictal cerebral dysfunction with 2-[(18)F]fluoro-2-D-deoxyglucose (FDG) positron emission tomography (PET) and neuropsychological examination usefully supplements electroencephalography (EEG) and brain magnetic resonance imaging (MRI) in planning epilepsy surgery. In MRI-negative mesial temporal lobe epilepsy, correlation of temporal lobe hypometabolism with extracranial ictal EEG can support resection without prior intracranial EEG monitoring. In refractory localization-related epilepsies, hypometabolic sites may supplement other data in hypothesizing likely ictal onset zones in order to intracranial electrodes for ictal recording. Prognostication of postoperative seizure freedom with FDG PET appears to have greater positive than negative predictive value. Neuropsychological evaluation is critical to evaluating the potential benefit of epilepsy surgery. Cortical deficits measured with neuropsychometry are limited in lateralizing and localizing value for determination of ictal onset sites, however. Left temporal resection risks iatrogenic verbal memory deficits and dysnomia, and neuropsychological findings are useful in predicting those at greatest risk. Prognostication of cognitive risks with resection at other sites is less satisfactory.
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Rayner G, Wrench JM, Wilson SJ. Differential contributions of objective memory and mood to subjective memory complaints in refractory focal epilepsy. Epilepsy Behav 2010; 19:359-64. [PMID: 20947435 DOI: 10.1016/j.yebeh.2010.07.019] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2010] [Revised: 06/23/2010] [Accepted: 07/21/2010] [Indexed: 10/18/2022]
Abstract
People with epilepsy frequently present with bitter memory complaints. Previous research variously attributes this to symptoms of mood disturbance or objective memory deficits. To investigate the influence of the epileptogenic region on this variability, we examined interrelationships between mood, objective memory, and memory complaints in a sample of patients with refractory focal epilepsy and controls (N = 96). Patients had either mesial temporal (MT, n = 39) or non mesial-temporal (NMT, n = 21) foci. In contrast to controls (n = 36), both patient groups were highly concerned about their memory (P<0.001) and were more likely to have a history of depression (P = 0.005). Multiple regression showed that objective memory dysfunction and current depressive symptoms predicted the memory complaints of patients with MT epilepsy (P = 0.005), whereas a history of depression predicted the complaints of patients with NMT epilepsy (P = 0.008). These findings suggest that patients have concerns about their memory underpinned by distinct psychological and neurobiological factors depending on the location of their epileptogenic focus.
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Affiliation(s)
- Genevieve Rayner
- Psychological Sciences, The University of Melbourne, Victoria, Australia.
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The effects of perceived emotional distress on language performance in intractable epilepsy. Epilepsy Behav 2010; 18:64-73. [PMID: 20478748 DOI: 10.1016/j.yebeh.2010.02.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2009] [Revised: 02/08/2010] [Accepted: 02/19/2010] [Indexed: 11/22/2022]
Abstract
We evaluated the potential moderating effect of emotional distress (Minnesota Multiphasic Personality Inventory 2, scales D and Pt) on language functioning (i.e., Boston Naming Test, phonemic paraphasic error production on the Boston Naming Test, Controlled Oral Word Association Task, Animal Naming, Token Test) in patients with left (N=43) and right (N=34) mesial temporal lobe epilepsy (MTLE) and frontal lobe epilepsy (FLE) (N=30). Video/EEG and brain imaging results confirmed localization. Logistic regression models revealed that perceived emotional distress moderated language performance. Performance of patients with left MTLE and that of patients with FLE were equally poor across language measures. Performance of patients with right MTLE was intact. Depression and anxiety differentially moderated performance. Anxiety was associated with better performance in patients with FLE on classically temporal lobe-mediated tasks (Boston Naming Test). Depression was associated with worse language performance on measures for which impaired performance was traditionally intrinsic to the underlying epileptogenic lesion (word fluency in FLE). Emotional distress influences language performance. Adequate treatment of mood should be considered when managing pharmacoresistant epilepsy.
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[Neuropsychology and psychopathology: cognitive analysis during medically refractory epilepsy surgery]. Rev Neurol (Paris) 2008; 164 Suppl 3:S128-33. [PMID: 18675038 DOI: 10.1016/s0035-3787(08)73303-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In psychopathology, few studies have been focused on the psychiatric complications of medically refractory mesial temporal lobe epilepsy (MTLE). The aim of the present study was to study NG's capacities, who presented emotional change after right temporal epilepsy surgery with phobias and empathy disorders. NG was examined in two emotional judgment tasks: one explicit and another implicit. For negative stimuli, NG had attraction in the explicit task and dependency in the implicit task. This study suggests that surgical intervention might be one of the causes of postoperative psychiatric disorders in patients with MTLE. MTLE patients have to be explored with neuropsychological paradigms.
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Consensus statement: the evaluation and treatment of people with epilepsy and affective disorders. Epilepsy Behav 2008; 13 Suppl 1:S1-29. [PMID: 18502183 DOI: 10.1016/j.yebeh.2008.04.005] [Citation(s) in RCA: 159] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2008] [Accepted: 04/09/2008] [Indexed: 12/28/2022]
Abstract
Affective disorders in people with epilepsy (PWE) have become increasingly recognized as a primary factor in the morbidity and mortality of epilepsy. To improve the recognition and treatment of affective disorders in PWE, an expert panel comprising members from the Epilepsy Foundation's Mood Disorders Initiative have composed a Consensus Statement. This document focuses on depressive disorders in particular and reviews the appearance and treatment of the disorder in children, adolescents, and adults. Idiosyncratic aspects of the appearance of depression in this population, along with physiological and cognitive issues and barriers to treatment, are reviewed. Finally, a suggested approach to the diagnosis of affective disorders in PWE is presented in detail. This includes the use of psychometric tools for diagnosis and a stepwise algorithmic approach to treatment. Recommendations are based on the general depression literature as well as epilepsy-specific studies. It is hoped that this document will improve the overall detection and subsequent treatment of affective illnesses in PWE.
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Kondziella D, Alvestad S, Vaaler A, Sonnewald U. Which clinical and experimental data link temporal lobe epilepsy with depression? J Neurochem 2007; 103:2136-52. [PMID: 17887964 DOI: 10.1111/j.1471-4159.2007.04926.x] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The association of temporal lobe epilepsy with depression and other neuropsychiatric disorders has been known since the early beginnings of neurology and psychiatry. However, only recently have in vivo and ex vivo techniques such as Positron Emission Tomography, Magnetic Resonance Imaging and Magnetic Resonance Spectroscopy in combination with refined animal models and behavioral tests made it possible to identify an emerging pattern of common pathophysiological mechanisms. We now have growing evidence that in both disorders altered interaction of serotonergic and noradrenergic neurons with glutamatergic systems is associated with abnormal neuronal circuits and hyperexcitability. Neuronal hyperexcitability can possibly evoke seizure activity as well as disturbed emotions. Moreover, decreased synaptic levels of neurotransmitters and high glucocorticoid levels influence intracellular signaling pathways such as cAMP, causing disturbances of brain-derived and other neurotrophic factors. These may be associated with hippocampal atrophy seen on Magnetic Resonance Imaging and memory impairment as well as altered fear processing and transient hypertrophy of the amygdala. Positron Emission Tomography studies additionally suggest hypometabolism of glucose in temporal and frontal lobes. Last, but not least, in temporal lobe epilepsy and depression astrocytes play a role that reaches far beyond their involvement in hippocampal sclerosis and ultimately, therapeutic regulation of glial-neuronal interactions may be a target for future research. All these mechanisms are strongly intertwined and probably bidirectional such that the structural and functional alterations from one disease increase the risk for developing the other. This review provides an integrative update of the most relevant experimental and clinical data on temporal lobe epilepsy and its association with depression.
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Affiliation(s)
- Daniel Kondziella
- Department of Neuroscience, Norwegian University of Science and Technology, Trondheim, Norway.
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Prassouli A, Katsarou E, Attilakos A, Antoniadou I. 'Learning difficulties in children with epilepsy with idiopathic generalized epilepsy and well-controlled seizures'. Dev Med Child Neurol 2007; 49:874; author reply 874-5. [PMID: 17979868 DOI: 10.1111/j.1469-8749.2007.00874.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Tracy JI, Lippincott C, Mahmood T, Waldron B, Kanauss K, Glosser D, Sperling MR. Are depression and cognitive performance related in temporal lobe epilepsy? Epilepsia 2007; 48:2327-35. [PMID: 17697111 DOI: 10.1111/j.1528-1167.2007.01254.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
PURPOSE The degree to which depression interacts with the cognitive deficits of epilepsy to alter cognitive skill and general functioning is unknown. Depression has significant negative effects on adaptive functioning including cognitive skills. Temporal lobe epilepsy (TLE) patients are known to possess cognitive dysfunction. Thus, TLE patients who are depressed may suffer a double burden of cognitive deficits. METHODS We examined whether depressed patients show increased cognitive deficits relative to nondepressed TLE patients (n = 59). We then sought to determine if this effect varied for left versus right TLE patients utilizing preoperative depression and neuropsychological data. To accurately study the lateralization of any observed effects, we selected only patients with definitive evidence of unilateral pathology and seizure focus and utilized a two-year seizure-free postsurgical outcome to capture this. RESULTS The data suggested that cognitive performance was not related to depression, and that depression did not reliably mediate the cognitive presentation of either our left or right TL patients. The notion of a double burden on cognition did not receive support from our data. The data did produce the expected advantage on verbal memory measures for right TLE patients. CONCLUSIONS The reasons for the limited statistical effects are discussed and issues in unraveling the causal relationships between depression, cognition, and TLE are considered. We discussed the potential role depression may play in the cognitive skills of TLE patients, but the major implication is that depression and neurocognitive performance appear to bear a limited relationship in the context of TLE.
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Affiliation(s)
- Joseph I Tracy
- Department of Neurology, Comprehensive Epilepsy Center, Thomas Jefferson University Hospital/Jefferson Medical College, Philadelphia, Pennsylvania 19107, USA.
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Dulay MF, York MK, Soety EM, Hamilton WJ, Mizrahi EM, Goldsmith IL, Verma A, Grossman RG, Yoshor D, Armstrong DD, Levin HS. Memory, emotional and vocational impairments before and after anterior temporal lobectomy for complex partial seizures. Epilepsia 2007; 47:1922-30. [PMID: 17116033 DOI: 10.1111/j.1528-1167.2006.00812.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
PURPOSE To assess the pre- and postsurgical frequency of memory, emotional, and vocational impairments in patients who underwent anterior temporal lobectomy (ATL), and to assess the relationship between emotional disturbance and memory abilities after ATL. METHODS Retrospective analysis of data was performed on 90 patients with medically intractable complex partial seizures who underwent ATL between 1981 and 2003. Patients were evaluated an average of 5 months before surgery and 11.3 months after surgery. RESULTS A moderate to high frequency of memory impairment (44.4%; verbal or nonverbal), emotional disturbance (38.9%) and unemployment (27.8%) existed in the same individuals both before and after surgery. There were small to moderate rates of new onset memory (18.9%), emotional (11.1%), and vocational (7.8%) difficulties after surgery often regardless of seizure control outcome. Patients who underwent left-ATL and had emotional disturbance after surgery had the lowest verbal memory test scores. CONCLUSIONS Results highlight the importance of taking into account emotional status when assessing memory abilities after ATL. Results replicate the finding of moderate to high frequencies of memory impairment, emotional disturbance, and unemployment both before and after ATL. Results provide support for the rationale that cognitive, psychiatric and vocational interventions are indicated to mitigate the problems that exist before and persist after ATL.
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Affiliation(s)
- Mario F Dulay
- Department of Physical Medicine and Rehabilitation, Bayor College of Medcine, Houston, Texas 77030, USA
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Bell BD. WMS-III Logical Memory performance after a two-week delay in temporal lobe epilepsy and control groups. J Clin Exp Neuropsychol 2006; 28:1435-43. [PMID: 17050268 PMCID: PMC1626652 DOI: 10.1080/13803390500434367] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Conventional memory assessment may fail to identify memory dysfunction that is characterized by intact recall for a relatively brief period but rapid forgetting thereafter. This study assessed immediate memory and retention after 30-minute and two-week delays in a control group (n = 25) and a group of individuals with temporal lobe epilepsy (TLE, n = 25). For raw free recall, thematic unit, and recognition memory scores from the Wechsler Memory Scale-3rd ed. (WMS-III) Logical Memory (LM) subtest, there were no group x trial interactions and the TLE group performed significantly worse than the controls on all trials. At the individual level, none of the patients (0%) demonstrated isolated free recall impairment at the two-week delay when raw scores were analyzed, and one patient (4%) but also five controls (20%) did so when percent retention scores were examined. In summary, TLE patients did not demonstrate disproportionate forgetting over two weeks on a widely used story memory test.
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Affiliation(s)
- Brian D Bell
- Department of Neurology, University of Wisconsin-Madison, USA.
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