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Assessment short-term memory

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https://www.readbyqxmd.com/read/28643564/the-power-of-traditional-design-techniques-the-effects-of-viewing-a-japanese-garden-on-individuals-with-cognitive-impairment
#1
Seiko Goto, Thomas J Gianfagia, John P Munafo, Eijiro Fujii, Xuting Shen, Minkai Sun, Bertram Emil Shi, Congcong Liu, Hiroshi Hamano, Karl Herrup
PURPOSE: This study is to examine how viewing a Japanese garden affects Japanese patients with dementia. BACKGROUND: In a previous study, authors explored the effect on individuals with Alzheimer's disease of viewing an indoor Japanese garden at a nursing home in the United States and reported that viewing the garden significantly reduced the heart rate, evoked short-term and long-term memories, and improved behavioral symptoms. However, it was unclear whether these effects were caused by the design of Japanese garden or unfamiliarity of the design to Caucasians...
July 2017: HERD
https://www.readbyqxmd.com/read/28642698/enhanced-working-memory-binding-by-direct-electrical-stimulation-of-the-parietal-cortex
#2
Agustina Birba, Eugenia Hesse, Lucas Sedeño, Ezequiel P Mikulan, María Del C García, Juan Ávalos, Federico Adolfi, Agustina Legaz, Tristán A Bekinschtein, Máximo Zimerman, Mario Parra, Adolfo M García, Agustín Ibáñez
Recent works evince the critical role of visual short-term memory (STM) binding deficits as a clinical and preclinical marker of Alzheimer's disease (AD). These studies suggest a potential role of posterior brain regions in both the neurocognitive deficits of Alzheimer's patients and STM binding in general. Thereupon, we surmised that stimulation of the posterior parietal cortex (PPC) might be a successful approach to tackle working memory deficits in this condition, especially at early stages. To date, no causal evidence exists of the role of the parietal cortex in STM binding...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28641509/brain-information-sharing-during-visual-short-term-memory-binding-yields-a-memory-biomarker-for-familial-alzheimer-s-disease
#3
Mario A Parra, Ezequiel Mikulan, Natalia Trujillo, Sergio Della Sala, Francisco Lopera, Facundo Manes, John Starr, Agustin Ibanez
BACKGROUND: Alzheimer's disease (AD) as a disconnection syndrome disrupts both brain information sharing and memory binding functions. The extent to which these two phenotypic expressions are shared pathophysiological mechanisms remains unknown. OBJECTIVE: To unveil the electrophysiological correlates of integrative memory impairments in AD towards new memory biomarkers for its prodromal stages. METHODS: Patients with 100% risk of familial AD (FAD) and healthy controls underwent assessment with the VSTM binding test (VSTMBT) while we recorded their EEG...
June 14, 2017: Current Alzheimer Research
https://www.readbyqxmd.com/read/28631005/phonological-working-memory-for-words-and-nonwords-in-cerebral-cortex
#4
Tyler K Perrachione, Satrajit S Ghosh, Irina Ostrovskaya, John D E Gabrieli, Ioulia Kovelman
Purpose: The primary purpose of this study was to identify the brain bases of phonological working memory (the short-term maintenance of speech sounds) using behavioral tasks analogous to clinically sensitive assessments of nonword repetition. The secondary purpose of the study was to identify how individual differences in brain activation were related to participants' nonword repetition abilities. Method: We used functional magnetic resonance imaging to measure neurophysiological response during a nonword discrimination task derived from standard clinical assessments of phonological working memory...
June 19, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
https://www.readbyqxmd.com/read/28625189/influence-of-early-maladaptive-schemas-depression-and-anxiety-on-the-intensity-of-self-reported-cognitive-complaint-in-older-adults-with-subjective-cognitive-decline
#5
Caroline Tandetnik, Thierry Hergueta, Philippe Bonnet, Bruno Dubois, Catherine Bungener
BACKGROUND: Subjective cognitive decline (SCD) designates a self-reported cognitive decline despite preserved cognitive abilities. This study aims to explore, in older adults with SCD, the association between intensity of self-reported cognitive complaint and psychological factors including Young's early maladaptive schemas (EMSs) (i.e. enduring cognitive structures giving rise to beliefs about oneself and the world), as well as depression and anxiety. METHODS: Seventy-six subjects (69...
June 19, 2017: International Psychogeriatrics
https://www.readbyqxmd.com/read/28623617/decrease-in-adult-neurogenesis-and-neuroinflammation-are-involved-in-spatial-memory-impairment-in-the-streptozotocin-induced-model-of-sporadic-alzheimer-s-disease-in-rats
#6
Taysa Bervian Bassani, Jéssica M Bonato, Meira M F Machado, Valentín Cóppola-Segovia, Eric L R Moura, Silvio M Zanata, Rúbia M M W Oliveira, Maria A B F Vital
Early impairments in cerebral glucose metabolism and insulin signaling pathways may participate in the pathogenesis of the sporadic form of Alzheimer's disease (sAD). Intracerebroventricular (ICV) injections of low doses of streptozotocin (STZ) are used to mimic sAD and study these alterations in rodents. Streptozotocin causes impairments in insulin signaling and has been reported to trigger several alterations in the brain, such as oxidative stress, neuroinflammation, and dysfunctions in adult neurogenesis, which may be involved in cognitive decline and are features of human AD...
June 16, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28623151/cognitive-performance-across-3-frailty-phenotypes-toledo-study-for-healthy-aging
#7
Cristina Rosado-Artalejo, Jose Antonio Carnicero, Jose Losa-Reyna, Amelia Guadalupe-Grau, Carmen Castillo-Gallego, Gonzalo Gutierrez-Avila, Ana Alfaro-Acha, Fernando Rodríguez-Artalejo, Leocadio Rodríguez-Mañas, Francisco José García-García
INTRODUCTION: Frailty is a strong predictor of adverse health events, but its impact on cognitive function is poorly understood. AIM: To assess cognitive performance in frailty and to identify the frailty stage where cognitive impairment begins. METHODS: Data were taken from 2044 people aged ≥65 years without cognitive impairment selected from the Toledo Study for Healthy Aging, a population-based cohort of older adults. Frailty status was assessed by 3 different scales: Frailty Phenotype (FP), Frailty Trait Scale (FTS), and Frailty Index (FI)...
June 13, 2017: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/28619096/presenilins-regulate-synaptic-plasticity-and-mitochondrial-calcium-homeostasis-in-the-hippocampal-mossy-fiber-pathway
#8
Sang Hun Lee, David Lutz, Mohanad Mossalam, Vadim Y Bolshakov, Michael Frotscher, Jie Shen
BACKGROUND: Presenilins play a major role in the pathogenesis of Alzheimer's disease, in which the hippocampus is particularly vulnerable. Previous studies of Presenilin function in the synapse, however, focused exclusively on the hippocampal Schaffer collateral (SC) pathway. Whether Presenilins play similar or distinct roles in other hippocampal synapses is unknown. METHODS: To investigate the role of Presenilins at mossy fiber (MF) synapses we performed field and whole-cell electrophysiological recordings and Ca(2+) imaging using acute hippocampal slices of postnatal forebrain-restricted Presenilin conditional double knockout (PS cDKO) and control mice at 2 months of age...
June 15, 2017: Molecular Neurodegeneration
https://www.readbyqxmd.com/read/28617690/short-and-long-term-cognitive-outcomes-in-patients-with-major-depression-treated-with-electroconvulsive-therapy
#9
Megha M Vasavada, Amber M Leaver, Stephanie Njau, Shantanu H Joshi, Linda Ercoli, Gerhard Hellemann, Katherine L Narr, Randall Espinoza
OBJECTIVES: The risk of cognitive impairment is a concern for patients with major depressive disorder receiving electroconvulsive therapy (ECT). Here, we evaluate the acute, short-term and long-term effects of ECT on tests of processing speed, executive function, memory, and attention. METHODS: Forty-four patients with major depressive disorder receiving ECT (61% right unilateral, 39% mixed right unilateral-bitemporal, left unilateral, and/or bitemporal lead placement) underwent a cognitive battery prior to ECT (T1), after 2 sessions (T2), and at the end of the index (T3)...
June 14, 2017: Journal of ECT
https://www.readbyqxmd.com/read/28605382/assessment-of-spontaneous-alternation-novel-object-recognition-and-limb-clasping-in-transgenic-mouse-models-of-amyloid-%C3%AE-and-tau-neuropathology
#10
Christian J Miedel, Jennifer M Patton, Andrew N Miedel, Edward S Miedel, Jonathan M Levenson
Here we describe a staged, behavioral testing approach that can be used to screen for compounds that exhibit in vivo efficacy on cognitive and functional motor behaviors in transgenic mouse models of β-amyloidosis and tauopathy. The paradigm includes tests for spontaneous alternation in a Y-maze, novel object recognition, and limb clasping. These tests were selected because they: 1) interrogate function of cognitive or motor domains and the correlate neural circuitry relevant to the human disease state, 2) have clearly defined endpoints, 3) have easily implementable quality control checks, 4) can be run in a moderate throughput format, and 5) require little intervention by the investigator...
May 28, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28602152/physical-activity-and-cognitive-function-of-long-distance-walkers-studying-four-days-marches-participants
#11
Hans Wouters, Teun Aalbers, Martijn Maessen, André Verbeek, Marcel Olde Rikkert, Roy Kessels, Maria Hopman, Thijs Eijsvogels
OBJECTIVE: Studies show physical activity to be beneficial for cognitive function. However, studies usually included individuals who were not particularly inclined to exercise. Following research among master athletes, we examined associations between physical activity and cognitive function in participants of the International Nijmegen Four Days Marches. These individuals are also inclined to exercise. On 4 consecutive days > 40,000 participants walk a daily distance of 30-50 km (120-200 km or 75-125 miles in total)...
June 10, 2017: Rejuvenation Research
https://www.readbyqxmd.com/read/28597131/applied-problem-solving-in-children-with-adhd-the-mediating-roles-of-working-memory-and-mathematical-calculation
#12
Lauren M Friedman, Mark D Rapport, Sarah A Orban, Samuel J Eckrich, Catrina A Calub
The difficulties children with ADHD experience solving applied math problems are well documented; however, the independent and/or interactive contributions of cognitive processes underlying these difficulties are not fully understood and warrant scrutiny. The current study examines two primary cognitive processes integral to children's ability to solve applied math problems: working memory (WM) and math calculation skills (i.e., the ability to utilize specific facts, skills, or processes related to basic math operations stored in long-term memory)...
June 9, 2017: Journal of Abnormal Child Psychology
https://www.readbyqxmd.com/read/28596958/circulating-cellular-adhesion-molecules-and-cognitive-function-the-coronary-artery-risk-development-in-young-adults-study
#13
Cynthia Yursun Yoon, Lyn M Steffen, Myron D Gross, Lenore J Launer, Andrew Odegaard, Alexander Reiner, Otto Sanchez, Kristine Yaffe, Stephen Sidney, David R Jacobs
OBJECTIVE: Higher circulating concentrations of cellular adhesion molecules (CAMs) can be used as markers of endothelial dysfunction. Given that the brain is highly vascularized, we assessed whether endothelial function is associated with cognitive performance. METHOD: Within the Coronary Artery Risk Development in Young Adults (CARDIA) Study, excluding N = 54 with stroke before year 25, we studied CAMs among N = 2,690 black and white men and women in CARDIA year 7 (1992-1993, ages 25-37) and N = 2,848 in CARDIA year 15 (2000-2001, ages 33-45)...
2017: Frontiers in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28586655/short-term-social-memory-deficits-in-adult-female-mice-exposed-to-tannery-effluent-and-possible-mechanism-of-action
#14
Fernanda Neves Estrela, Letícia Martins Rabelo, Boniek Gontijo Vaz, Denys Ribeiro de Oliveira Costa, Igor Pereira, Aline Sueli de Lima Rodrigues, Guilherme Malafaia
The accumulated organic residues in tannery-plant courtyards are an eating attraction to small rodents; however, the contact of these animals with these residues may change their social behavior. Thus, the aim of the present study is to investigate whether the exposure to tannery effluent (TE) can damage the social recognition memory of female Swiss mice, as well as to assess whether vitamin C supplementation could provide information about how TE constituents can damage these animals' memory. We have observed that resident females exposed to TE (without vitamin supplementation) did not explore the anogenital region, their body or chased intruding females for shorter time or with lower frequency during the retest session of the social recognition test, fact that indicates social recognition memory deficit in these animals...
May 31, 2017: Chemosphere
https://www.readbyqxmd.com/read/28585513/meta-analysis-of-longitudinal-studies-of-cognition-in-bipolar-disorder-comparison-with-healthy-controls-and-schizophrenia
#15
E Bora, A Özerdem
BACKGROUND: Bipolar disorder (BP) is associated with significant cognitive impairment. Recent evidence suggests that cognitive deficits are already evident after first-episode mania. However, it is not clear whether BP is associated with further decline in cognitive functions in individuals with established illness. Aim of this meta-analytic review was to examine longitudinal neurocognitive changes in BP and to compare trajectory of cognitive deficits in BP with schizophrenia and healthy controls...
June 6, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28579056/-computerized-oculomotor-training-in-dyslexia-a-randomized-crossover-clinical-trial-in-pediatric-population
#16
H Peyre, C-L Gérard, I Dupong Vanderhorst, S Larger, C Lemoussu, J Vesta, E Bui Quoc, N Gouleme, R Delorme, M P Bucci
OBJECTIVE: Several studies have reported abnormal oculomotor capacities leading to reading/writing difficulties among dyslexic children. However, no randomized clinical trial has been conducted to determine whether oculomotor training improves reading/writing skills of these children. The present study aims to evaluate the efficacy of computer-based oculomotor training among dyslexic children. METHOD: Crossover randomized trial with enrollment from January 12, 2015 to July 24, 2015, and follow-up to February 4, 2016...
June 1, 2017: L'Encéphale
https://www.readbyqxmd.com/read/28577103/neuromotor-activity-anxiety-and-cognitive-function-in-the-in-vivo-model-of-alimentary-hyperlipidemia-and-obesity
#17
S A Apryatin, Yu S Sidorova, V A Shipelin, A Balakina, N V Trusov, V K Mazo
Behavioral indicators characterizing specific features of the pathological process of alimentary-dependent diseases were studied using in vivo model of alimentary hyperlipidemia in rats and mice. Rats and mice of the control groups received balanced semisynthetic diet for 63 days; animals of the experimental groups received a diet with high fat content (30% dry weight), balanced or high-fat diet with fructose solution instead of water, balanced cholesterol-enriched diet (0.5% dry weight), or balanced cholesterol-enriched diet with fructose solution...
June 3, 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28557476/repeated-computerized-cognitive-testing-performance-shifts-and-test-retest-reliability-in-healthy-young-adults
#18
Naomi White, Bridget Forsyth, Amelia Lee, Liana Machado
Many longitudinal studies entail repeated computerized cognitive testing. However, few of the measures frequently employed for assessing cognitive changes have been examined for within- and between-day retest effects over multiple time points. To address gaps in the repeated cognitive assessment literature, in the current study 20 male undergraduate students completed a computerized cognitive battery 6 times over 3 testing days, each 1 week apart. Performance shifts and test-retest reliability (TRR) varied for different measured variables...
May 29, 2017: Psychological Assessment
https://www.readbyqxmd.com/read/28550247/two-novel-mutations-in-the-first-transmembrane-domain-of-presenilin1-cause-young-onset-alzheimer-s-disease
#19
Collin Y Liu, Yu Ohki, Taisuke Tomita, Satoko Osawa, Bruce R Reed, William Jagust, Victoria Van Berlo, Lee-Way Jin, Helena C Chui, Giovanni Coppola, John M Ringman
BACKGROUND: The presenilin-1 protein (PS1) is the catalytic unit of γ-secretase implicated in the production of abnormally long forms of amyloid-β (Aβ), including Aβ42, proteins thought critical in the pathogenesis of Alzheimer's disease (AD). In AD of autosomal dominant inheritance, the majority of pathogenic mutations have been found in the PSEN1 gene within which the location of the mutation can provide clues as to the mechanism of pathogenesis. OBJECTIVE: To describe clinical features of two novel mutations in the transmembrane portion 1 (TMD-1) of PSEN1 as well as biochemical features in one and neuropathological findings in the other...
May 25, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28549646/increased-central-dopaminergic-activity-might-be-involved-in-the-behavioral-abnormality-of-cuprizone-exposure-mice
#20
Haoxiao Chang, Jianghong Liu, Yifan Zhang, Fang Wang, Yanchuan Wu, Li Zhang, Houxi Ai, Guangliang Chen, Linlin Yin
The neurotoxican cuprizone (CPZ, a copper chelator) has been used extensively to create a mouse model of demyelination. However, the effects on behavior of CPZ treatment have not been reported in C57BL/6 mice given a diet containing 0.4% CPZ within 3weeks. Behavioral abnormalities were assessed using a range of test: Y-maze, spontaneous locomotor activity, rota-rod test, novel object recognition, climbing. Mice exposed to CPZ displayed more arm entrance, locomotor movements, and climbing behavior, suggesting an increase in central nervous system activity...
May 23, 2017: Behavioural Brain Research
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