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Gerardo Salvato, Pina Scarpa, Stefano Francione, Roberto Mai, Laura Tassi, Elisa Scarano, Giorgio Lo Russo, Gabriella Bottini
It is largely recognized that the mesial temporal lobe and its substructure support declarative long-term memory (LTM). So far, different theories have been suggested, and the organization of declarative verbal LTM in the brain is still a matter of debate. In the current study, we retrospectively selected 151 right-handed patients with temporal lobe epilepsy with and without hippocampal sclerosis, with a homogeneous (seizure-free) clinical outcome. We analyzed verbal memory performance within a normalized scores context, by means of prose recall and word paired-associate learning tasks...
October 10, 2016: Epilepsy & Behavior: E&B
Valeria Peviani, Pina Scarpa, Alessio Toraldo, Gabriella Bottini
Neuropsychological assessment is critical in both diagnosis and prognosis of patients with epilepsy. Beyond electrophysiological and anatomical alterations, other factors including different ethnic-cultural and linguistic backgrounds might affect neuropsychological performance. Only a few studies considered migration and acculturation effects and they typically concerned nonclinical samples. The current study aimed at investigating the influence of ethnic background and time spent in Italy on a full neuropsychological battery administered to both Italian and foreign-born patients and at providing a brief interview for obtaining relevant information on each patient's transcultural and language-related history...
October 10, 2016: Epilepsy & Behavior: E&B
Khalid Hamandi, Siân E Robson, Malek Zaben, Krish D Singh, William P Gray
No abstract text is available yet for this article.
October 2016: Seizure: the Journal of the British Epilepsy Association
Çiğdem Özkara, Emine Taşkıran, İrem Yıldırım Çarpraz, Erhan Bilir, Aylin Bican Demir, İbrahim Bora, İbrahim Aydoğdu, Şakir Delil, Francine Chassoux
PURPOSE: The study aimed to describe the electroclinical features of ictal kissing, an unusual behavior that may occur during focal seizures. METHOD: Twenty-five patients collected from four epilepsy centers and previously published reports were reviewed for their demographic, clinical, and electrophysiological features. RESULTS: Sixteen of 25 patients were female. The mean age was 32.9 years (9.9-51 years) and the average age at seizure onset was 14...
October 1, 2016: Seizure: the Journal of the British Epilepsy Association
Garret O'Connell, Catherine E Myers, Ramona O Hopkins, R P McLaren, Mark A Gluck, Andy J Wills
OBJECTIVE: Generalization is the application of existing knowledge to novel situations. Questions remain about the precise role of the hippocampus in this facet of learning, but a connectionist model by Gluck and Myers (1993) predicts that generalization should be enhanced following hippocampal damage. METHOD: In a two-category learning task, a group of amnesic patients (n = 9) learned the training items to a similar level of accuracy as matched controls (n = 9)...
July 21, 2016: Neuropsychology
Elisabetta Ambron, Sergio Della Sala
When performing complex actions, like graphic copying or imitation of gestures, some patients may perform these actions very close to, or directly on the top of the model. This peculiar behavior, known as closing-in, is the focus of the present literature review, which will provide a critical picture of the research in this field, highlighting the difficulties in defining and assessing closing-in and the contrasting results about the nature and the characteristics of this phenomenon. Most importantly, we will discuss the 2 hypotheses proposed to explain closing-in, namely the compensation and the attraction account, in light of the most recent work...
July 21, 2016: Neuropsychology
Lori J P Altmann, Elizabeth Stegemöller, Audrey A Hazamy, Jonathan P Wilson, Dawn Bowers, Michael S Okun, Chris J Hass
OBJECTIVES: Parkinson's disease (PD) results in a range of non-motor deficits that can affect mood, cognition, and language, and many of these issues are unresponsive to pharmacological intervention. Aerobic exercise can improve mood and cognition in healthy older adults, although only a few studies have examined exercise effects on these domains in PD. The current study assesses the effects of aerobic exercise on aspects of cognition, mood, and language production in people with PD. METHODS: This study compares the effects of aerobic exercise to stretch-balance training and a no-contact control group in participants with idiopathic PD...
September 22, 2016: Journal of the International Neuropsychological Society: JINS
Bridget Burmester, Janet Leathem, Paul Merrick
Research investigating how subjective cognitive complaints (SCCs) might reliably indicate impairments in objective cognitive functioning has produced highly varied findings, and despite attempts to synthesise this literature (e.g., Jonker et al. International Journal of Geriatric Psychiatry, 15, 983-991, 2000; Reid and MacLullich Dementia and Geriatric Cognitive Disorders, 22(5-6), 471-485, 2006; Crumley et al. Psychology and Aging, 29(2), 250-263, 2014), recent work continues to offer little resolution. This review provides both quantitative and qualitative synthesis of research conducted since the last comprehensive review in 2006, with the aim of identifying reasons for these discrepancies that might provide fruitful avenues for future exploration...
October 6, 2016: Neuropsychology Review
Meng-Han Tsai, David N Vaughan, Yuliya Perchyonok, Greg J Fitt, Ingrid E Scheffer, Samuel F Berkovic, Graeme D Jackson
OBJECTIVE: There is considerable difficulty in diagnosing hippocampal malrotation (HIMAL), with different criteria of variable reliability. Here we assess qualitative and quantitative criteria in HIMAL diagnosis and explore the role of HIMAL in magnetic resonance imaging (MRI)-negative temporal lobe epilepsy (TLE). METHODS: We studied the MRI of 155 adult patients with MRI-negative TLE and 103 healthy volunteers, and we asked (1) what are the qualitative and quantitative features that allow a reliable diagnosis of HIMAL, (2) how common is HIMAL in a normal control population, and (3) is HIMAL congruent with the epileptogenic side in MRI-negative TLE...
October 2016: Epilepsia
Sarah Wilson
No abstract text is available yet for this article.
September 2016: Epilepsia
Ajay Gupta
No abstract text is available yet for this article.
July 2016: Epilepsy Currents
Freddy J Alfaro, Vasileios-Arsenios Lioutas, Daniela A Pimentel, Chen-Chih Chung, Francisco Bedoya, Woo-Kyoung Yoo, Vera Novak
Subjects with metabolic syndrome (MetS) often show worse cognitive performance compared with the healthy population. We investigated whether microstructural white matter abnormalities are associated with cognitive performance in adults with MetS using diffusion tensor MR imaging. A total of 32 subjects with MetS (age 64.8 ± 7.8, 56.25 % female) and 23 age-, gender-, and education-matched healthy controls completed a battery of neuropsychological tests and diffusion tensor imaging (DTI) at 3-T MRI. Brain global and regional volumes, white matter fractional anisotropy (FA), mean diffusivity (MD), radial diffusivity (RD), and axial diffusivity (LD) were calculated...
October 11, 2016: Journal of Neurology
Elayne Ahern, Maria Semkovska
Objective: Cognitive deficits are frequently observed in major depression. Yet, when these deficits emerge and how they relate to the depressed state is unclear. The aim of this 2-part systematic review and meta-analysis is to determine the pattern and extent of cognitive deficits during a first-episode of depression (FED) and their persistence following FED remission. Method: Published, peer-reviewed articles on cognitive function in FED patients through October 2015 were searched. Meta-analyses with random-effects modeling were conducted...
October 10, 2016: Neuropsychology
Klajdi Puka, Mary Lou Smith
OBJECTIVE: Little is known about the long-term cognitive outcomes following pediatric epilepsy surgery. Although the evidence for change within the first 2 years is not compelling, the plasticity of the immature brain may allow for improvements in the long term. This study examined memory function in a cohort of surgical and nonsurgical patients at baseline and 4-11 years after. METHOD: Participants were 88 patients (mean age 20.05, standard deviation [SD] 4.21 years) with childhood-onset intractable epilepsy; 53 had undergone resective epilepsy surgery...
October 12, 2016: Epilepsia
S M Jessica Beh, Mark J Cook, Wendyl J D'Souza
OBJECTIVE: The objective of this study was to compare the seizure characteristics and treatment outcomes in patient groups with temporal lobe epilepsy (TLE) identified with isolated amygdala enlargement (AE) on magnetic resonance imaging studies. METHODS: PubMed, Embase, and the Cochrane Library were searched for relevant studies using the keywords 'amygdala enlargement', 'epilepsy', and 'seizures' in April 2015. Human studies, written in English, that investigated cohorts of patients with TLE and AE were included...
July 2016: Epilepsy & Behavior: E&B
Vera Dinkelacker, Xu Xin, Michel Baulac, Séverine Samson, Sophie Dupont
OBJECTIVE: Temporal lobe epilepsy (TLE) with hippocampal sclerosis has widespread effects on structural and functional connectivity and often entails cognitive dysfunction. EEG is mandatory to disentangle interactions in epileptic and physiological networks which underlie these cognitive comorbidities. Here, we examined how interictal epileptic discharges (IEDs) affect cognitive performance. METHODS: Thirty-four patients (right TLE=17, left TLE=17) were examined with 24-hour video-EEG and a battery of neuropsychological tests to measure intelligence quotient and separate frontal and temporal lobe functions...
September 2016: Epilepsy & Behavior: E&B
Julia Jacobs, Sarah Banks, Rina Zelmann, Maeike Zijlmans, Marilyn Jones-Gotman, Jean Gotman
INTRODUCTION: High-frequency oscillations (HFOs, 80-500Hz) are newly-described EEG markers of epileptogenicity. The proportion of physiological and pathological HFOs is unclear, as frequency analysis is insufficient for separating the two types of events. For instance, ripples (80-250Hz) also occur physiologically during memory consolidation processes in medial temporal lobe structures. We investigated the correlation between HFO rates and memory performance. METHODS: Patients investigated with bilateral medial temporal electrodes and an intellectual capacity allowing for memory testing were included...
September 2016: Epilepsy & Behavior: E&B
Tanja S Kellermann, Leonardo Bonilha, Ramin Eskandari, Camille Garcia-Ramos, Jack J Lin, Bruce P Hermann
OBJECTIVE: Normal cognitive function is defined by harmonious interaction among multiple neuropsychological domains. Epilepsy has a disruptive effect on cognition, but how diverse cognitive abilities differentially interact with one another compared with healthy controls (HC) is unclear. This study used graph theory to analyze the community structure of cognitive networks in adults with temporal lobe epilepsy (TLE) compared with that in HC. METHODS: Neuropsychological assessment was performed in 100 patients with TLE and 82 HC...
October 2016: Epilepsy & Behavior: E&B
Amy Loughman, Udaya Seneviratne, Stephen C Bowden, Wendyl J D'Souza
Reduced cognitive functioning has been documented in the genetic generalized epilepsies (GGE). Among a number of hypothesized causal mechanisms, some evidence from other epilepsy syndromes suggests the impact of epileptiform discharges. This study investigates the relationship between cognitive function in GGE and burden of epileptiform discharges within a 24-hour EEG recording, controlling for variables relevant to cognitive function in epilepsy. As part of a larger prospective cohort study, 69 patients with EEG-confirmed GGE (11-58years) underwent 24-hour EEG and detailed neuropsychological assessment using the Woodcock Johnson III Tests...
September 2016: Epilepsy & Behavior: E&B
Rūta Mameniškienė, Justė Rimšienė, Roma Puronaitė
OBJECTIVES: The aims of our study were to evaluate cognitive decline in people with temporal lobe epilepsy over a period of 13years and to determine what clinical and treatment characteristics may have been associated with these. MATERIALS AND METHODS: Thirty-three individuals with temporal lobe epilepsy underwent the same neuropsychological assessment of verbal and nonverbal memory, attention, and executive functions using the same cognitive test battery as one used 13years ago...
October 2016: Epilepsy & Behavior: E&B
2016-10-12 10:42:39
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