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https://www.readbyqxmd.com/read/27919482/the-association-of-cognitive-impairment-with-gray-matter-atrophy-and-cortical-lesion-load-in-clinically-isolated-syndrome
#1
Sevda Diker, Arzu Ceylan Has, Aslı Kurne, Rahşan Göçmen, Kader Karlı Oğuz, Rana Karabudak
BACKGROUND: Multiple sclerosis can impair cognition from the early stages and has been shown to be associated with gray matter damage in addition to white matter pathology. OBJECTIVES: To investigate the profile of cognitive impairment in clinically isolated syndrome (CIS), and the contribution of cortical inflammation, cortical and deep gray matter atrophy, and white matter lesions to cognitive decline. METHODS: Thirty patients with clinically isolated syndrome and twenty demographically- matched healthy controls underwent neuropsychologic assessment through the Rao Brief Repeatable Battery, and brain magnetic resonance imaging with double inversion recovery using a 3T scanner...
November 2016: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/27915338/verbal-fluency-tasks-effects-of-age-gender-and-education
#2
Dalia Santos Nogueira, Elizabeth Azevedo Reis, Ana Vieira
OBJECTIVES: This study presents data for semantic fluency, phonemic fluency, action fluency, and alternate fluency. The aim is to provide normative data by age, gender, and education for European Portuguese in each fluency category. METHODS: Norms for the verbal fluency task were collected from a volunteer population of 444 healthy Portuguese participants. Multiple regression analysis with age, gender, and education as independent variables was performed for the semantic fluency global score, and these variables were considered separately for each phonemic category...
December 3, 2016: Folia Phoniatrica et Logopaedica
https://www.readbyqxmd.com/read/27915210/functional-brain-imaging-of-walking-while-talking-an-fnirs-study
#3
Florian G Metzger, Ann-Christine Ehlis, Florian B Haeussinger, Patrick Schneeweiss, Justin Hudak, Andreas J Fallgatter, Sabrina Schneider
Since functional imaging of whole body movements is not feasible with functional magnetic resonance imaging (fMRI), the present study presents in vivo functional near-infrared spectroscopy (fNIRS) as a suitable technique to measure body movement effects on fronto-temporo-parietal cortical activation in single and dual task paradigms. Previous fNIRS applications in studies addressing whole body movements were typically limited to the assessment of prefrontal brain areas. The current study investigated brain activation in the frontal, temporal and parietal cortex of both hemispheres using functional near-infrared spectroscopy (fNIRS) with two large 4 x 4 probe-sets with 24 channels each during single and dual gait tasks...
November 30, 2016: Neuroscience
https://www.readbyqxmd.com/read/27913387/using-multivariate-base-rates-to-interpret-low-scores-on-an-abbreviated-battery-of-the-delis-kaplan-executive-function-system
#4
Justin E Karr, Mauricio A Garcia-Barrera, James A Holdnack, Grant L Iverson
OBJECTIVE: Executive function consists of multiple cognitive processes that operate as an interactive system to produce volitional goal-oriented behavior, governed in large part by frontal microstructural and physiological networks. Identification of deficits in executive function in those with neurological or psychiatric conditions can be difficult because the normal variation in executive function test scores, in healthy adults when multiple tests are used, is largely unknown. This study addresses that gap in the literature by examining the prevalence of low scores on a brief battery of executive function tests...
December 1, 2016: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/27912155/home-based-interventions-improve-trained-but-not-novel-dual-task-balance-performance-in-older-adults-a-randomized-controlled-trial
#5
Suleeporn Wongcharoen, Somporn Sungkarat, Peeraya Munkhetvit, Vipul Lugade, Patima Silsupadol
The purpose of this study was to compare the efficacy of four different home-based interventions on dual-task balance performance and to determine the generalizability of the four trainings to untrained tasks. Sixty older adults, aged 65 and older, were randomly assigned to one of four home-based interventions: single-task motor training, single-task cognitive training, dual-task motor-cognitive training, and dual-task cognitive-cognitive training. Participants received 60-min individualized training sessions, 3 times a week for 4 weeks...
November 22, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27912072/lexical-retrieval-and-semantic-memory-in-parkinson-s-disease-the-question-of-noun-and-verb-dissociation
#6
Henrique Salmazo-Silva, Maria Alice de Mattos Pimenta Parente, Maria Sheila Rocha, Roberta Roque Baradel, André M Cravo, João Ricardo Sato, Fabio Godinho, Maria Teresa Carthery-Goulart
The dissociation between the processing of verbs and nouns has been debated in light of the Embodied Cognition Theory (EC). The objective of this paper is to verify how action and verb processing deficits of PD patients are modulated by different tasks with different cognitive demands. Action and object lexical-semantic processing was evaluated in patients with Parkinson's Disease (PD) and cognitively healthy controls through three different tasks (verbal fluency, naming and semantic association). Compared to controls, PD patients presented worse performance in naming actions and in the two semantic association tasks (action/object)...
November 29, 2016: Brain and Language
https://www.readbyqxmd.com/read/27911295/efficacy-and-safety-of-plasma-exchange-with-5-albumin-to-modify-cerebrospinal-fluid-and-plasma-amyloid-%C3%AE-concentrations-and-cognition-outcomes-in%C3%A2-alzheimer-s-disease-patients-a%C3%A2-multicenter-randomized-controlled-clinical-trial
#7
Mercè Boada, Fernando Anaya, Pilar Ortiz, Javier Olazarán, Joshua R Shua-Haim, Thomas O Obisesan, Isabel Hernández, Joan Muñoz, Mar Buendia, Montserrat Alegret, Asunción Lafuente, Lluís Tárraga, Laura Núñez, Mireia Torres, Joan Ramon Grifols, Isidre Ferrer, Oscar L Lopez, Antonio Páez
BACKGROUND: Studies conducted in animal models and humans suggest the presence of a dynamic equilibrium of amyloid-β (Aβ) peptide between cerebrospinal fluid (CSF) and plasma compartments. OBJECTIVE: To determine whether plasma exchange (PE) with albumin replacement was able to modify Aβ concentrations in CSF and plasma as well as to improve cognition in patients with mild-moderate Alzheimer's disease (AD). METHODS: In a multicenter, randomized, patient- and rater-blind, controlled, parallel-group, phase II study, 42 AD patients were assigned (1 : 1) to PE treatment or control (sham) groups...
November 28, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27903817/effects-of-orthostatic-hypotension-on-cognition-in-parkinson-disease
#8
Justin Centi, Roy Freeman, Christopher H Gibbons, Sandy Neargarder, Alexander O Canova, Alice Cronin-Golomb
OBJECTIVE: To investigate the relation between orthostatic hypotension (OH) and posture-mediated cognitive impairment in Parkinson disease (PD) using a cross-sectional and within-group design. METHODS: Individuals without dementia with idiopathic PD included 18 with OH (PDOH) and 19 without OH; 18 control participants were also included. Neuropsychological tests were conducted in supine and upright-tilted positions. Blood pressure was assessed in each posture. RESULTS: The PD groups performed similarly while supine, demonstrating executive dysfunction in sustained attention and response inhibition, and reduced semantic fluency and verbal memory (encoding and retention)...
November 30, 2016: Neurology
https://www.readbyqxmd.com/read/27902848/topiramate-in-migraine-prevention-a-2016-perspective
#9
Stephen D Silberstein
BACKGROUND: In evidence-based guidelines published in 2000, topiramate was a third-tier migraine preventive with no scientific evidence of efficacy; recommendation for its use reflected consensus opinion and clinical experience. Its neurostabilizing activity, coupled with its favorable weight profile, made topiramate an attractive alternative to other migraine preventives that caused weight gain. When guidelines for migraine prevention in episodic migraine were published in 2012, topiramate was included as a first-line option based on double-blind, randomized controlled trials involving nearly 3000 patients...
November 30, 2016: Headache
https://www.readbyqxmd.com/read/27898603/an-ultra-high-field-study-of-cerebellar-pathology-in-early-relapsing-remitting-multiple-sclerosis-using-mp2rage
#10
Mário João Fartaria, Kieran OʼBrien, Alexandra Şorega, Guillaume Bonnier, Alexis Roche, Pavel Falkovskiy, Gunnar Krueger, Tobias Kober, Meritxell Bach Cuadra, Cristina Granziera
OBJECTIVES: The aim of this study was to study focal cerebellar pathology in early stages of multiple sclerosis (MS) using ultra-high-field magnetization-prepared 2 inversion-contrast rapid gradient-echo (7T MP2RAGE). MATERIALS AND METHODS: Twenty early-stage relapsing-remitting MS patients underwent an MP2RAGE acquisition at 7 T magnetic resonance imaging (MRI) (images acquired at 2 different resolutions: 0.58 × 0.58 × 0.58 mm, 7T_0.58, and 0.75 × 0.75 × 0...
November 28, 2016: Investigative Radiology
https://www.readbyqxmd.com/read/27898158/multivariate-assessment-of-subjective-and-objective-measures-of-social-and-family-satisfaction-in-veterans-with-history-of-traumatic-brain-injury
#11
Henry J Orff, Chelsea C Hays, Elizabeth W Twamley
Approximately 20% of current-era Veterans have sustained a traumatic brain injury (TBI), which can result in persistent postconcussive symptoms. These symptoms may disrupt family and social functioning. We explored psychiatric, postconcussive, and cognitive factors as correlates of objective functioning and subjective satisfaction in family and social relationships. At entry into a supported employment study, 50 unemployed Veterans with a history of mild to moderate TBI and current cognitive impairment were administered baseline assessments...
2016: Journal of Rehabilitation Research and Development
https://www.readbyqxmd.com/read/27896703/spreading-activation-in-nonverbal-memory-networks
#12
Paul S Foster, Candias Wakefield, Scott Pryjmak, Katelyn M Roosa, Kaylei K Branch, Valeria Drago, David W Harrison, Ronald Ruff
Theories of spreading activation primarily involve semantic memory networks. However, the existence of separate verbal and visuospatial memory networks suggests that spreading activation may also occur in visuospatial memory networks. The purpose of the present investigation was to explore this possibility. Specifically, this study sought to create and describe the design frequency corpus and to determine whether this measure of visuospatial spreading activation was related to right hemisphere functioning and spreading activation in verbal memory networks...
November 28, 2016: Brain Informatics
https://www.readbyqxmd.com/read/27893232/narrative-production-in-children-with-autism-spectrum-disorder-asd-and-children-with-attention-deficit-hyperactivity-disorder-adhd-similarities-and-differences
#13
Sanne J M Kuijper, Catharina A Hartman, Suzanne T M Bogaerds-Hazenberg, Petra Hendriks
The present study focuses on the similarities and differences in language production between children with autism spectrum disorder (ASD) and children with attention-deficit/hyperactivity disorder (ADHD). In addition, we investigated whether Theory of Mind (ToM), working memory, and response inhibition are associated with language production. Narratives, produced by 106 Dutch-speaking children (36 with ASD, 34 with ADHD, and 36 typically developing) aged 6 to 12 during ADOS assessment, were examined on several linguistic measures: verbal productivity, speech fluency, syntactic complexity, lexical semantics, and discourse pragmatics...
November 28, 2016: Journal of Abnormal Psychology
https://www.readbyqxmd.com/read/27892775/the-emotion-word-fluency-test-ewft-initial-psychometric-validation-and-physiological-evidence-in-young-adults
#14
Christopher A Abeare, Sabrina Freund, Kristen Kaploun, Tara McAuley, Claudiu Dumitrescu
INTRODUCTION: The clinical assessment of affective functioning has been slow to incorporate findings from affective neuroscience. Of particular interest in the current study is the assessment of affective word production. METHOD: In a series of four studies, we examined test-retest and interrater reliability for the Emotion Word Fluency Test (EWFT), basic construct validity with existing verbal fluency measures, physiological responses across verbal fluency tasks, and a novel scoring method to examine qualitative aspects of participant response sets...
November 28, 2016: Journal of Clinical and Experimental Neuropsychology
https://www.readbyqxmd.com/read/27890303/cognitive-effects-of-creatine-monohydrate-adjunctive-therapy-in-patients-with-bipolar-depression-results-from-a-randomized-double-blind-placebo-controlled-trial
#15
REVIEW
Ricardo Alexandre Toniolo, Francy de Brito Ferreira Fernandes, Michelle Silva, Rodrigo da Silva Dias, Beny Lafer
BACKGROUND: Depressive episodes and cognitive impairment are major causes of morbidity and dysfunction in individuals suffering from bipolar disorder (BD). Novel treatment approaches that target clinical and cognitive aspects of bipolar depression are needed, and research on pathophysiology suggests that mitochondrial modulators such as the nutraceutical creatine monohydrate might have a therapeutic role for this condition. METHODS: Eighteen (N=18) patients with bipolar depression according to DSM-IV criteria who were enrollled in a 6-week, randomized, double-blind, placebo-controlled trial of creatine monohydrate 6g daily as adjunctive therapy were submitted to neuropsychological assessments (Wisconsin Card Sorting Test, Digit Span subtest of the Wechsler Adult Intelligence Scale-Third Edition, Stroop Color-Word Test, Rey-Osterrieth complex figure test, FAS Verbal Fluency Test) at baseline and week 6...
November 20, 2016: Journal of Affective Disorders
https://www.readbyqxmd.com/read/27885501/valence-of-affective-verbal-fluency-fmri-studies-on-neural-organization-of-emotional-concepts-joy-and-fear
#16
Barbara Gawda, Ewa Szepietowska, Pawel Soluch, Tomasz Wolak
The present study was designed to examine the underlying brain mechanisms of positive and negative emotional verbal fluency. Three verbal fluency tasks (one non-emotional phonemic task, two emotional tasks: Joy and Fear) were used in this study. The results were analyzed for 35 healthy, Polish-speaking, right-handed adults aged 20-35. Functional magnetic resonance imaging (3T) was used to show brain activity during active participation in emotional verbal fluency tasks. The results reported for emotional fluency confirmed activation of different brain regions for the negative and positive emotional verbal fluency: in positive emotional verbal fluency Joy elicits greater activation in the frontal regions and the cingulate cortex, while in negative verbal fluency Fear is reflected in activation of parietal and temporal areas...
November 24, 2016: Journal of Psycholinguistic Research
https://www.readbyqxmd.com/read/27883911/examining-the-relationship-between-rapid-automatized-naming-and-arithmetic-fluency-in-chinese-kindergarten-children
#17
Jiaxin Cui, George K Georgiou, Yiyun Zhang, Yixun Li, Hua Shu, Xinlin Zhou
Rapid automatized naming (RAN) has been found to predict mathematics. However, the nature of their relationship remains unclear. Thus, the purpose of this study was twofold: (a) to examine how RAN (numeric and non-numeric) predicts a subdomain of mathematics (arithmetic fluency) and (b) to examine what processing skills may account for the RAN-arithmetic fluency relationship. A total of 160 third-year kindergarten Chinese children (83 boys and 77 girls, mean age=5.11years) were assessed on RAN (colors, objects, digits, and dice), nonverbal IQ, visual-verbal paired associate learning, phonological awareness, short-term memory, speed of processing, approximate number system acuity, and arithmetic fluency (addition and subtraction)...
November 21, 2016: Journal of Experimental Child Psychology
https://www.readbyqxmd.com/read/27881969/a-self-reference-effect-on-memory-for-people-we-are-particularly-good-at-retrieving-people-named-like-us
#18
Serge Brédart
In the present study, it was evaluated whether one's own name may produce a self-reference bias in memory for people. Results from Experiment 1 indicated that, in a verbal fluency task, participants recalled a greater number of known (familiar or famous) people with the same first name as their own than did paired participants, and vice versa. In the first experiment, paired participants knew each other but were not close. Experiment 2 examined whether this self-reference effect would still occur when the comparison target was a close other...
2016: Frontiers in Psychology
https://www.readbyqxmd.com/read/27878440/cognitive-dysfunction-in-patients-with-spinocerebellar-ataxia-type-6
#19
Itaru Tamura, Asako Takei, Shinsuke Hamada, Michio Nonaka, Yoshiko Kurosaki, Fumio Moriwaka
The aim of this study was to assess the cognitive functions of patients with spinocerebellar ataxia type 6 (SCA6). We examined 13 patients with genetically confirmed SCA6 and 13 healthy control subjects matched for age, years of education, global cognitive status, and intellectual ability. We administered verbal memory (word recall and word recognition), executive function (digit span, category and letter fluency, Frontal Assessment Battery, and Trail Making Test-A and B), and visuospatial construction (figure copying) tests...
November 22, 2016: Journal of Neurology
https://www.readbyqxmd.com/read/27876096/a-randomised-controlled-trial-of-the-effects-of-very-low-carbohydrate-and-high-carbohydrate-diets-on-cognitive-performance-in-patients-with-type-2-diabetes
#20
Jeannie Tay, Ian T Zajac, Campbell H Thompson, Natalie D Luscombe-Marsh, Vanessa Danthiir, Manny Noakes, Jonathan D Buckley, Gary A Wittert, Grant D Brinkworth
This study compared the longer-term effects of a very low-carbohydrate, high-fat diet with a high-carbohydrate, low-fat diet on cognitive performance in individuals with type 2 diabetes (T2D). In total, 115 obese adults with T2D (sixty-six males, BMI: 34·6 (sd 4·3) kg/m2, age: 58 (sd 7) years, HbA1c: 7·3 (sd 1·1) %, diabetes duration: 8 (sd 6) years) were randomised to consume either an energy-restricted, very low-carbohydrate, low-saturated-fat (LC) diet or an energy-matched high unrefined carbohydrate, low-fat (HC) diet with supervised aerobic/resistance exercise (60 min, 3 d/week) for 52 weeks...
November 23, 2016: British Journal of Nutrition
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