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Michael J Boivin, Noeline Nakasujja, Alla Sikorskii, Horacio Ruiseñor-Escudero, Itziar Familiar-Lopez, Kimberley Walhof, Esther M van der Lugt, Robert O Opoka, Bruno Giordani
BACKGROUND: Computerized cognitive rehabilitation training (CCRT) may be beneficial for alleviating persisting neurocognitive deficits in Ugandan severe malaria survivors. We completed a randomized controlled trial of CCRT for both severe malaria and non-malaria cohorts of children. METHODS: 150 school-age severe malaria and 150 non-malaria children were randomized to three treatment arms: 24 sessions of Captain's Log CCRT for attention, working memory and nonverbal reasoning, in which training on each of 9 tasks difficulty increased with proficiency; a limited CCRT arm that did not titrate to proficiency but randomly cycled across the simplest to moderate level of training; and a passive control arm...
March 6, 2018: Brain Research Bulletin
Wan-Ju Cheng, Chun-Hsin Chen, Chih-Ken Chen, Ming-Chyi Huang, Robert H Pietrzak, John H Krystal, Ke Xu
BACKGROUND: Ketamine has been used to probe the biology of psychosis and cognitive dysfunction in humans. High levels of ketamine abuse are associated with persisting psychosis (KPP) in a minority of users. However, relatively little is known about cognitive function among KPP patients and whether the cognitive impairments associated with KPP resemble those of schizophrenia (SZ). METHODS: We recruited 149 treatment-seeking patients, including nonpsychotic ketamine users (KNP, n=51), KPP (n=23), and SZ (n=75) patients...
March 3, 2018: Schizophrenia Research
Nasreen A Sadeq, Elise G Valdes, Aryn L Harrison Bush, Ross Andel
OBJECTIVES: This study examines the role of personality in cognitive performance, adherence, and satisfaction with regular cognitive self-monitoring. MATERIALS AND METHODS: One hundred fifty-seven cognitively healthy older adults, age 55+, completed the 44-item Big-Five Inventory and were subsequently engaged in online monthly cognitive monitoring using the Cogstate Brief Battery for up to 35 months (M=14 mo, SD=7 mo). The test measures speed and accuracy in reaction time, visual learning, and working memory tasks...
February 20, 2018: Alzheimer Disease and Associated Disorders
Randall L Morrison, Maggie Fedgchin, Jaskaran Singh, Joop Van Gerven, Rob Zuiker, Kyoung Soo Lim, Peter van der Ark, Ewa Wajs, Liwen Xi, Peter Zannikos, Wayne C Drevets
BACKGROUND: The effect of intranasal esketamine on cognitive functioning in healthy participants is assessed in this study. METHODS: Twenty-four participants (19-49 years) were randomized to one of two treatment sequences in which either esketamine 84 mg or placebo was intranasally administered in a double-blind, two-period crossover design. Primary measures included five tests of Cogstate® computerized test battery assessed at 1 h predose and 40 min, 2, 4, and 6 h postdose...
February 1, 2018: Psychopharmacology
T J Barber, A Imaz, M Boffito, J Niubó, A Pozniak, R Fortuny, J Alonso, N Davies, S Mandalia, D Podzamczer, B Gazzard
CINAMMON is a phase IV, open-label, single-arm, pilot study assessing maraviroc (MVC) in the central nervous system (CNS) when added to darunavir/ritonavir monotherapy (DRV/r) in virologically suppressed HIV-infected subjects. CCR5 tropic participants on DRV/r were recruited. Participants remained on DRV/r for 12 week (w) (control phase). MVC 150 mg qd was added w12-w36 (intervention phase). Lumbar puncture (LP) and neurocognitive function (Cogstate) examinations scheduled at baseline, w12 and w36; MRI before w12, again at w36...
December 26, 2017: Journal of Neurovirology
Nina S Stachenfeld, Cheryl A Leone, E Soibhan Mitchell, Eric Freese, Laura Harkness
INTRODUCTION: Healthy women do not always consume Recommended Daily Levels of fluid intake ad libitum. We hypothesized that 1) women lose≥1.0% BW during daily activities, 2) that mild body water loss impairs memory and executive function, 3) water intake to recommended daily levels will improve cognitive function. METHODS: We tested 12 women (26±5yr, 22.5±2.6kg/m2 BMI). Session 1 was a control (CON) session, during which subjects monitored their food and fluid intake (diary) and activity (Fitbit®)...
December 22, 2017: Physiology & Behavior
Kay Kulason, Rui Nouchi, Yasushi Hoshikawa, Masafumi Noda, Yoshinori Okada, Ryuta Kawashima
Background: This pilot study investigated the effects of partial pulmonary lobectomy lung surgery on cognitive functions of elderly Japanese patients. It is recognized that elderly patients undergoing surgery have increased risk of Postoperative Cognitive Decline (POCD), a condition in which learning, memory, and processing speed is greatly reduced after surgery. Since elderly patients are more likely to exhibit symptoms of POCD, the incidence is increasing as the population receiving surgery is aging. Methods: Cognitive function was measured for all subjects (n = 12) before and after surgery using three different cognitive tests: Mini-Mental Status Exam-Japanese (MMSE-J), Frontal Assessment Battery (FAB), and a computerized Cogstate Brief Battery (CBB)...
2017: Frontiers in Aging Neuroscience
R F Buckley, K P Sparks, K V Papp, M Dekhtyar, C Martin, S Burnham, R A Sperling, D M Rentz
BACKGROUND: As prevention trials for Alzheimer's disease move into asymptomatic populations, identifying older individuals who manifest the earliest cognitive signs of Alzheimer's disease is critical. Computerized cognitive testing has the potential to replace current gold standard paper and pencil measures and may be a more efficient means of assessing cognition. However, more empirical evidence about the comparability of novel computerized batteries to paper and pencil measures is required...
2017: Journal of Prevention of Alzheimer's Disease
Kara R Douglas-Newman, Rachel V Smith, Mary V Spiers, Timothy Pond, Henry R Kranzler
OBJECTIVES: Although HIV+ individuals may be at increased risk of alcohol-related cognitive impairment, the relations between drinking level and cognitive performance in these individuals are not well understood. We examined whether higher levels of recent drinking in HIV+ individuals were associated with poorer cognitive performance, particularly in executive functioning (EF) and memory. METHODS: We administered a comprehensive cognitive battery to 120 seropositive subjects (101 men) who reported alcohol consumption in the preceding 90 days...
September 2017: Addictive Disorders & Their Treatment
Marlene P Freeman, Laura J Cheng, Danna Moustafa, Abigail Davies, Alexandra Z Sosinsky, Betty Wang, Laura F Petrillo, Charlotte Hogan, Lee S Cohen
BACKGROUND: In a preliminary trial, we assessed the efficacy of vortioxetine for major depressive disorder (MDD) during the menopausal transition. Secondary outcomes included hot flashes (HFs), anxiety, and cognitive complaints. METHODS: Perimenopausal and early postmenopausal women with MDD (N = 27) received 8 weeks of open-label, flexible-dose treatment with vortioxetine. The Montgomery-Åsberg Depression Rating Scale (MADRS) was the primary outcome measure. Secondary measures included: HF frequency, the Greene Climacteric Scale (GCS), Menopause-Specific Quality of Life Questionnaire (MEN-QOL), Beck Anxiety Inventory (BAI), Cognitive and Physical Functioning Questionnaire (CPFQ), Digit Symbol Substitution Test (DSST), and Cogstate testing...
November 2017: Annals of Clinical Psychiatry: Official Journal of the American Academy of Clinical Psychiatrists
Veronik Sicard, Robert D Moore, Dave Ellemberg
OBJECTIVE: To determine if the Cogstate test battery contains the requisite sensitivity to detect prolonged cognitive alterations. METHODS: One hundred twenty collegiate athletes (71 with a history of concussion; 49 controls) completed the Cogstate test battery, to which we added a 2-back condition. In addition to the Cogstate clinical (transformed variables), we analyzed the raw data. RESULTS: The clinical variables failed to reveal any group differences...
October 5, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
Nicola A Cook, Jin Un Kim, Yasmin Pasha, Mary Me Crossey, Adrian J Schembri, Brian T Harel, Torben Kimhofer, Simon D Taylor-Robinson
BACKGROUND: Psychometric testing is used to identify patients with cirrhosis who have developed hepatic encephalopathy (HE). Most batteries consist of a series of paper-and-pencil tests, which are cumbersome for most clinicians. A modern, easy-to-use, computer-based battery would be a helpful clinical tool, given that in its minimal form, HE has an impact on both patients' quality of life and the ability to drive and operate machinery (with societal consequences). AIM: We compared the Cogstate™ computer battery testing with the Psychometric Hepatic Encephalopathy Score (PHES) tests, with a view to simplify the diagnosis...
2017: International Journal of General Medicine
Cara F Levitch, Molly E Zimmerman, Naomi Lubin, Namhee Kim, Richard B Lipton, Walter F Stewart, Mimi Kim, Michael L Lipton
OBJECTIVES: The present study examined the relative contribution of recent or long-term heading to neuropsychological function in amateur adult soccer players. PARTICIPANTS AND METHODS: Soccer players completed a baseline questionnaire (HeadCount-12m) to ascertain heading during the prior 12 months (long-term heading, LTH) and an online questionnaire (HeadCount-2w) every 3 months to ascertain heading during the prior 2 weeks (recent heading, RH). Cogstate, a battery of six neuropsychological tests, was administered to assess neuropsychological function...
August 22, 2017: Journal of the International Neuropsychological Society: JINS
Channa E Marsh, Howard H Carter, Kym J Guelfi, Kurt J Smith, Kerryn E Pike, Louise H Naylor, Daniel J Green
Background: Cocoa contains polyphenols that are thought to be beneficial for vascular health.Objective: We assessed the impact of chocolate containing distinct concentrations of cocoa on cerebrovascular function and cognition.Methods: Using a counterbalanced within-subject design, we compared the acute impact of consumption of energy-matched chocolate containing 80%, 35%, and 0% single-origin cacao on vascular endothelial function, cognition, and cerebrovascular function in 12 healthy postmenopausal women (mean ± SD age: 57...
September 2017: Journal of Nutrition
James L Farnsworth, Lucas Dargo, Brian G Ragan, Minsoo Kang
OBJECTIVE:   Although widely used, computerized neurocognitive tests (CNTs) have been criticized because of low reliability and poor sensitivity. A systematic review was published summarizing the reliability of Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT) scores; however, this was limited to a single CNT. Expansion of the previous review to include additional CNTs and a meta-analysis is needed. Therefore, our purpose was to analyze reliability data for CNTs using meta-analysis and examine moderating factors that may influence reliability...
September 2017: Journal of Athletic Training
Kylie M Dingwall, Allison O Gray, Annette R McCarthy, Jennifer F Delima, Stephen C Bowden
BACKGROUND: Reliable cognitive assessment for Indigenous Australians is difficult given that mainstream tests typically rely on Western concepts, content and values. A test's psychometric properties should therefore be assessed prior to use in other cultures. The aim of this pilot study was to examine the reliability and acceptability of four cognitive tests for Australian Aboriginal people. METHODS: Participants were 40 male and 44 female (N = 84) Aboriginal patients from Alice Springs Hospital...
August 2, 2017: BMC Psychology
Ling-Yu Ji, Xiao-Ling Li, Yang Liu, Xiu-Wen Sun, Hui-Fen Wang, Long Chen, Liang Gao
Background: Few studies have examined the acute exercise-induced changes in cognitive performance in different thermal environments and the time course effects. Objective: Investigate the time-dependent effects of acute exercise on university students' processing speed, working memory and cognitive flexibility in temperate and cold environments. Method: Twenty male university students (age 23.5 ± 2.0 years) with moderate physical activity level participated in a repeated-measures within-subjects design. Processing speed, working memory and cognitive flexibility were assessed using CogState test battery at baseline (BASE), followed by a 45-min rest (REST), immediately after (EX) and 30 min after (POST-EX) 30-min moderate-intensity treadmill running in both temperate (TEMP; 25°C) and cold (COLD; 10°C) environments...
2017: Frontiers in Psychology
Philip D Harvey, Cynthia O Siu, Antony D Loebel
Daytime sleepiness is a commonly reported adverse effect associated with psychotropic agents that may impair cognitive performance and functioning. The objective of this post-hoc analysis was to evaluate the long-term effects of lurasidone and quetiapine XR on daytime sleepiness and neurocognitive performance during a 6-month, double-blind continuation study, in subjects who completed an initial 6-week, randomized, placebo-controlled trial comparing these agents. Daytime sleepiness, cognitive performance, and health-related quality of life were assessed with the Epworth Sleepiness Scale (ESS), CogState computerized battery, and the Quality of Well-Being (QWB-SA) Scale, respectively...
September 2016: Schizophrenia Research. Cognition
Kathleen Landolt, Paul Maruff, Ben Horan, Michael Kingsley, Glynda Kinsella, Paul D O'Halloran, Matthew W Hale, Bradley J Wright
The inverse relationship between acute stress and decision-making is well documented, but few studies have investigated the impact of chronic stress. Jockeys work exhaustive schedules and have extremely dangerous occupations, with safe performance requiring quick reaction time and accurate decision-making. We used the effort reward imbalance (ERI) occupational stress model to assess the relationship of work stress with indices of stress physiology and decision-making and reaction time. Jockeys (N=32) completed computerised cognitive tasks (Cogstate) on two occasions; September and November (naturally occurring lower and higher stress periods), either side of an acute stress test...
July 14, 2017: Psychoneuroendocrinology
Steven P Broglio, Richelle Williams, Ashley Rettmann, Brandon Moore, James T Eckner, Sean Meehan
OBJECTIVE: To evaluate neuroelectric and cognitive function relative to a season of football participation. Cognitive and neuroelectric function declines are hypothesized to be present in football athletes. DESIGN: Observational. SETTING: Athletic fields and research laboratory. PATIENTS (OR PARTICIPANTS): Seventy-seven high school athletes (15.9 + 0.9 years, 178.6 + 7.2 cm, 74.4 + 14.7 kg, and 0.8 + 0.8 self-reported concussions) participating in football (n = 46) and noncontact sports (n = 31)...
July 14, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
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