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https://www.readbyqxmd.com/read/28334676/manual-motor-speed-dysfunction-as-a-neurocognitive-endophenotype-in-euthymic-bipolar-disorder-patients-and-their-healthy-relatives-evidence-from-a-5-year-follow-up-study
#1
P Correa-Ghisays, V Balanzá-Martínez, G Selva-Vera, J Vila-Francés, E Soria-Olivas, J Vivas-Lalinde, C San Martín, A M Borrás, R Ayesa-Arriola, J Sanchez-Moreno, J Sánchez-Ort, B Crespo-Facorro, E Vieta, R Tabarés-Seisdedos
BACKGROUND: Few studies have examined Manual Motor Speed (MMS) in bipolar disorder (BD). The aim of this longitudinal, family study was to explore whether dysfunctional MMS represents a neurocognitive endophenotype of BD. METHODS: A sample of 291 subjects, including 131 BD patients, 77 healthy first-degree relatives (BD-Rel), and 83 genetically-unrelated healthy controls (HC), was assessed with the Finger-Tapping Test (FTT) on three occasions over a 5-year period...
March 16, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28333901/influence-of-the-recurrent-syncope-episodes-on-neurocognitive-functions-in-patients-with-vasovagal-syncope
#2
Joanna Jędrzejczyk-Spaho, Artur Z Pietrucha, Agnieszka Borowiec, Irena Bzukała, Mateusz Wnuk, Ewa Konduracka, Jadwiga Nessler
The aim of study was to evaluate an influence of recurrent syncope episodes on the neurocognitive functions (NCF) in patients with suspected VVS. AIM: The aim of study was to evaluate an influence of recurrent syncope episodes on the neurocognitive functions (NCF) in patients with suspected VVS. MATERIALS AND METHODS: Study population: 24 pts. (16 women) aged 17-70 yrs (mean age 40 years), with suspected VVS, referred to HUTT (head-up tilt test). All pts. underwent initial evaluation regarding to the number and circumstances of the syncopal and/or presyncopal spells...
March 21, 2017: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28322777/preeclampsia-and-cognitive-impairment-later-in-life
#3
Julie A Fields, Vesna D Garovic, Michelle M Mielke, Kejal Kantarci, Muthuvel Jayachandran, Wendy M White, Alissa M Butts, Jonathan Graff-Radford, Brian D Lahr, Kent R Bailey, Virginia M Miller
BACKGROUND: Hypertension is a risk factor for cerebrovascular disease and cognitive impairment. Women who suffer hypertensive episodes during pregnancy report variable neurocognitive changes within the first decade following the affected pregnancy. However, long-term follow-up of these women into their post-menopausal years has not been conducted. OBJECTIVE: The aim of this study was to examine whether women with a history of preeclampsia were at increased risk of cognitive decline 35-40 years after the affected pregnancy...
March 17, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28320844/the-effects-of-obstructive-sleep-apnea-syndrome-on-the-dentate-gyrus-and-learning-and-memory-in-children
#4
Jiook Cha, Johanna A Zea-Hernandez, Sanghun Sin, Katharina Graw-Panzer, Keivan Shifteh, Carmen R Isasi, Mark E Wagshul, Eileen E Moran, Jonathan Posner, Molly E Zimmerman, Raanan Arens
Obstructive sleep apnea syndrome (OSAS) is associated with intermittent hypoxia and sleep loss. In children, impairments of cognitive function are important manifestations, but underlying pathology is unknown. We hypothesized that OSAS would affect the dentate gyrus, a hippocampal subdivision essential to neurogenesis and cognition, and that this impact would further affect cognitive function in children. In children with OSAS (n=11) and control subjects (n=12; age and sex-matched), we performed diffusion tensor imaging and structural MRI, polysomnography, and neuropsychological assessments...
March 20, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28318904/dual-memory-neural-networks-for-modeling-cognitive-activities-of-humans-via-wearable-sensors
#5
Sang-Woo Lee, Chung-Yeon Lee, Dong-Hyun Kwak, Jung-Woo Ha, Jeonghee Kim, Byoung-Tak Zhang
Wearable devices, such as smart glasses and watches, allow for continuous recording of everyday life in a real world over an extended period of time or lifelong. This possibility helps better understand the cognitive behavior of humans in real life as well as build human-aware intelligent agents for practical purposes. However, modeling the human cognitive activity from wearable-sensor data stream is challenging because learning new information often results in loss of previously acquired information, causing a problem known as catastrophic forgetting...
February 20, 2017: Neural Networks: the Official Journal of the International Neural Network Society
https://www.readbyqxmd.com/read/28306607/orexin-a-aggravates-the-impairment-of-hippocampal-neurons-caused-by-intermittent-hypoxemia-by-the-oxr-plc%C3%AE-1-erk1-2-pathway
#6
Guohua Li, Shi Tang, Heng Chi, Weiwei Huang, Shanshan Lu, Xin Lv, Xiaomin Liu, Yan Li, Yanpeng Wang, Jiyou Tang
Obstructive sleep apnea is a highly prevalent but under-recognized disorder that causes neurocognitive deficits such as spatial memory and learning deficits. These deficits are frequently accompanied by an increase in orexin-A, which has been shown to be involved in learning and memory as well as in neuronal apoptosis in brain areas involved in cognition, such as the hippocampus. The aim of this work was to study the possible harmful effects of orexin-A on intermittent hypoxemia-induced hippocampal neuronal damage and to investigate the potential underlying molecular mechanisms and signaling pathways in vitro...
March 16, 2017: Neuroreport
https://www.readbyqxmd.com/read/28299557/beyond-a-reading-disability-comments-on-the-need-to-examine-the-full-spectrum-of-abilities-disabilities-of-the-atypical-dyslexic-brain
#7
Jeffrey W Gilger
A panel of practioners and researchers convened to consider how to advance a broader understanding of the neurocognitive profile of people with dyslexia. While a great deal of research has been conducted on the reading process, the panel recognized that the "dyslexia brain" may be unique in other ways as well. In particular, the panel focused on complex nonverbal/spatial skills and correlated attributes such as career choice. The conclusion of the panel was that there is more to be learned about how people with dyslexia reason spatially and how these qualities manifest in academic, personal, and career behaviors...
March 15, 2017: Annals of Dyslexia
https://www.readbyqxmd.com/read/28297591/estrogen-replacement-improves-verbal-memory-and-executive-control-in-oligomenorrheic-amenorrheic-athletes-in-a-randomized-controlled-trial
#8
Charumathi Baskaran, Brooke Cunningham, Franziska Plessow, Vibha Singhal, Ryan Woolley, Kathryn E Ackerman, Meghan Slattery, Hang Lee, Elizabeth A Lawson, Kamryn Eddy, Madhusmita Misra
OBJECTIVE: Both estrogen and exercise may have cognition enhancing benefits; however, young oligomenorrheic/amenorrheic athletes (OA) with estrogen deficiency have not been evaluated for cognitive deficits. Our objective was to determine whether 6 months of estrogen replacement will impact cognitive domains in OA. We hypothesized that estrogen replacement would improve verbal memory and executive control in OA. METHODS: We performed cognitive assessments at baseline and after 6 months in 48 OA (14-25 years) randomized to estrogen (EST+) (oral 30 µg ethinyl estradiol [n = 16] or transdermal 100 µg 17-β-estradiol patch [n = 13]) or no estrogen (EST-) (n = 19) in an ongoing clinical trial...
March 14, 2017: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/28294530/the-association-between-physical-activity-and-cognition-in-men-with-and-without-hiv-infection
#9
A K Monroe, L Zhang, L P Jacobson, M W Plankey, T T Brown, E N Miller, E Martin, J T Becker, A J Levine, A Ragin, N C Sacktor
OBJECTIVES: HIV-associated neurocognitive disorders are highly prevalent, and physical activity (PA) is a modifiable behaviour that may affect neurocognitive function. Our objective was to determine the association between PA and neurocognitive function and the effect of HIV on this association. METHODS: PA was assessed in the Multicenter AIDS Cohort Study with the International Physical Activity Questionnaire. A neuropsychological test battery assessed global impairment and domain-specific impairment (executive function, speed of processing, working memory, learning, memory, and motor function) every 2 years...
March 13, 2017: HIV Medicine
https://www.readbyqxmd.com/read/28289629/neurocognitive-dysfunction-according-to-hypoperfusion-territory-in-patients-with-moyamoya-disease
#10
Chang Gu Kang, Min Ho Chun, Jung-A Kang, Kyung Hee Do, Su Jin Choi
OBJECTIVE: To demonstrate the prevalence of cerebral hypoperfusion without focal cerebral lesions in patients with Moyamoya disease (MMD), and the relationship between areas of hypoperfusion and cognitive impairment. METHODS: Twenty-six MMD patients were included. Patients were categorized according to the presence/absence of hypoperfusion in the frontal, parietal, temporal, and occipital lobes on brain single-photon-emission computed tomography (SPECT) after acetazolamide challenge...
February 2017: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28270343/comprehensive-neuropsychological-evaluation-of-children-and-adolescents-with-sickle-cell-anemia-a-hospital-based-sample
#11
Samantha Nunes, Nayara Argollo, Marivania Mota, Camilo Vieira, Eduardo Pondé de Sena
BACKGROUND: Individuals with sickle cell anemia may suffer symptomatic or silent cerebral infarcts leading to neurocognitive complications. This study investigated the cognitive and intellectual performance of children and adolescents with sickle cell anemia. METHODS: The socioeconomic status, clinical aspects and behavioral profile of 15 young individuals with sickle cell anemia were evaluated. The Wechsler Intelligence Scale for Children, the Developmental Neuropsychological Assessment Test, and the Child Behavior Checklist were applied...
January 2017: Revista Brasileira de Hematologia e Hemoterapia
https://www.readbyqxmd.com/read/28269314/transfer-learning-with-large-scale-data-in-brain-computer-interfaces
#12
Chun-Shu Wei, Yuan-Pin Lin, Yu-Te Wang, Chin-Teng Lin, Tzyy-Ping Jung
Human variability in electroencephalogram (EEG) poses significant challenges for developing practical real-world applications of brain-computer interfaces (BCIs). The intuitive solution of collecting sufficient user-specific training/calibration data can be very labor-intensive and time-consuming, hindering the practicability of BCIs. To address this problem, transfer learning (TL), which leverages existing data from other sessions or subjects, has recently been adopted by the BCI community to build a BCI for a new user with limited calibration data...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28258445/physio-somatic-symptoms-in-schizophrenia-association-with-depression-anxiety-neurocognitive-deficits-and-the-tryptophan-catabolite-pathway
#13
Buranee Kanchanatawan, Sunee Sirivichayakul, Supaksorn Thika, Kiat Ruxrungtham, André F Carvalho, Michel Geffard, George Anderson, Cristiano Noto, Rada Ivanova, Michael Maes
To investigate the frequency of physio-somatic symptoms (PS) symptoms in schizophrenia and their relation to positive, negative and affective symptoms; neurocognitive deficits and impairments in the tryptophan catabolite (TRYCAT) pathway. Eighty four patients with schizophrenia and 40 healthy controls were assessed using the 12 item Fibromyalgia and Chronic Fatigue Syndrome Rating scale (FF) and scales for negative and positive symptoms, depression and anxiety. Cognitive functioning was tested using the Cambridge Neuropsychological Test Automated Battery (CANTAB)...
March 3, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28256688/-learning-disorders-in-neurofibromatosis-type-1
#14
J J Garcia-Penas
INTRODUCTION: Neurocognitive deficits and academic learning difficulties are the most common neurologic complication of neurofibromatosis type 1 (NF1) in childhood and can be responsible for significant lifetime morbidity. Children with NF1 show impairments in attention, visual perception, language, executive function, academic skills, and behavior. Studies in animal models suggest that the learning disabilities associated with NF1 are caused by excessive Ras activity that leads to increased gamma-aminobutyric acid (GABA) inhibition and to decreased long-term potentiation...
February 24, 2017: Revista de Neurologia
https://www.readbyqxmd.com/read/28252976/trial-1-versus-trial-2-of-the-test-of-memory-malingering-evaluating-accuracy-without-a-gold-standard
#15
Douglas Mossman, Dustin B Wygant, Roger O Gervais, Kathleen J Hart
This study examines the accuracy of the Test of Memory Malingering (TOMM), a frequently administered measure for evaluating effort during neurocognitive testing. In the last few years, several authors have suggested that the initial recognition trial of the TOMM (Trial 1) might be a more useful index for detecting feigned or exaggerated impairment than Trial 2, which is the source for inference recommended by the original instruction manual (Tombaugh, 1996). We used latent class modeling (LCM) implemented in a Bayesian framework to evaluate archival Trial 1 and Trial 2 data collected from 1,198 adults who had undergone outpatient forensic evaluations...
March 2, 2017: Psychological Assessment
https://www.readbyqxmd.com/read/28228043/impact-of-exercise-on-clinical-symptom-report-and-neurocognition-after-concussion-in-children-and-adolescents
#16
Vicky Manikas, Franz E Babl, Stephen Hearps, Julian Dooley, Vicki Anderson
Recovery from concussion in childhood is poorly understood, despite its importance in decisions regarding return to normal activity. Resolution of post-concussive symptoms (PCS) is widely employed as a marker of recovery in clinical practice; however, it is unclear whether subtle impairments persist only to re-emerge in the context of increased physical or cognitive demands. This study aimed to examine the effect of strenuous exercise on clinical symptom report and neurocognition in children and adolescents after PCS resolution after concussion...
March 21, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28227553/transfer-learning-with-large-scale-data-in-brain-computer-interfaces
#17
Chun-Shu Wei, Yuan-Pin Lin, Yu-Te Wang, Chin-Teng Lin, Tzyy-Ping Jung, Chun-Shu Wei, Yuan-Pin Lin, Yu-Te Wang, Chin-Teng Lin, Tzyy-Ping Jung, Yuan-Pin Lin, Yu-Te Wang, Tzyy-Ping Jung, Chin-Teng Lin, Chun-Shu Wei
Human variability in electroencephalogram (EEG) poses significant challenges for developing practical real-world applications of brain-computer interfaces (BCIs). The intuitive solution of collecting sufficient user-specific training/calibration data can be very labor-intensive and time-consuming, hindering the practicability of BCIs. To address this problem, transfer learning (TL), which leverages existing data from other sessions or subjects, has recently been adopted by the BCI community to build a BCI for a new user with limited calibration data...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28185899/lurasidone-versus-treatment-as-usual-for-cognitive-impairment-in-euthymic-patients-with-bipolar-i-disorder-a-randomised-open-label-pilot-study
#18
Lakshmi N Yatham, Sylvia Mackala, Jayasree Basivireddy, Sharon Ahn, Nazlin Walji, Chen Hu, Raymond W Lam, Ivan J Torres
BACKGROUND: Cognitive impairment is present in euthymic patients with bipolar disorder and correlates with impairments in everyday functioning. We aimed to examine the efficacy of lurasidone adjunctive therapy compared with treatment as usual (TAU) in improving cognition. METHODS: For this randomised, open-label, pilot study, we recruited patients aged 19-65 years with euthymic bipolar I disorder from the Mood Disorder Centre in UBC Hospital (Vancouver, Canada)...
March 2017: Lancet Psychiatry
https://www.readbyqxmd.com/read/28182301/factor-analyzing-the-norwegian-matrics-consensus-cognitive-battery
#19
Christine Mohn, June Ullevoldsaeter Lystad, Torill Ueland, Erik Falkum, Bjørn Rishovd Rund
AIM: The MATRICS Consensus Cognitive Battery (MCCB) assesses seven cognitive domains with ten subtests. This domain structure has not been demonstrated. Three factors have been produced in US samples. We examined the dimensional structure of the Norwegian MCCB. In addition, we studied the contribution of each subtest to the battery sum score. METHODS: The participants were 131 patients with schizophrenia spectrum disorders and 300 healthy controls. Their Norwegian MCCB test scores were subject to exploratory and confirmatory factor analysis and regression analysis...
February 9, 2017: Psychiatry and Clinical Neurosciences
https://www.readbyqxmd.com/read/28169874/impact-of-hiv-and-atiretroviral-therapy-on-neurocognitive-outcomes-among-school-aged-children
#20
Heena Brahmbhatt, Michael Boivin, Victor Ssempijja, Joseph Kagaayi, Godfrey Kigozi, David Serwadda, Avy Violari, Ronald H Gray
INTRODUCTION: The impact of HIV infection and antiretroviral therapy (ART) on neurocognitive outcomes among children aged 7 to 14 years was assessed. We hypothesized that ART would ameliorate neurocognitive sequelae of HIV infection. METHODS: HIV-positive and negative mother-child pairs from the Rakai Community Cohort Study (RCCS) and ART clinics in Rakai, Uganda were followed prospectively over 4 years. Exposures were stratified as: Perinatally HIV Infected (PHIV), Perinatally HIV Exposed but Uninfected (PHEU), and HIV Unexposed and Uninfected (HUU)...
February 6, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
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