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https://www.readbyqxmd.com/read/28934615/working-memory-and-prefrontal-temporal-hemodynamic-responses-during-post-task-period-in-patients-with-schizophrenia-a%C3%A2-multi-channel-near-infrared-spectroscopy-study
#1
Takamasa Noda, Kazuyuki Nakagome, Shiori Setoyama, Eisuke Matsushima
The relationship between cognitive impairments and social dysfunction in schizophrenia is widely accepted. Neuroimaging studies in patients with schizophrenia have demonstrated abnormal function in the prefrontal region during various neurocognitive tasks. However, studies exploring the neural basis of these cognitive impairments are still limited. Multi-channel near-infrared spectroscopy (NIRS) is a non-invasive functional neuroimaging technique used to detect the spatiotemporal characteristics of brain activity...
September 4, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28934192/metabolomics-and-cognition-in-african-american-adults-in-midlife-the-atherosclerosis-risk-in-communities-study
#2
J Bressler, B Yu, T H Mosley, D S Knopman, R F Gottesman, A Alonso, A R Sharrett, L M Wruck, E Boerwinkle
Clinical studies have shown alterations in metabolic profiles when patients with mild cognitive impairment and Alzheimer's disease dementia were compared to cognitively normal subjects. Associations between 204 serum metabolites measured at baseline (1987-1989) and cognitive change were investigated in 1035 middle-aged community-dwelling African American participants in the biracial Atherosclerosis Risk in Communities (ARIC) Study. Cognition was evaluated using the Delayed Word Recall Test (DWRT; verbal memory), the Digit Symbol Substitution Test (DSST; processing speed) and the Word Fluency Test (WFT; verbal fluency) at visits 2 (1990-1992) and 4 (1996-1998)...
July 18, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28934108/markers-of-microbial-translocation-and-immune-activation-predict-cognitive-processing-speed-in-heavy-drinking-men-living-with-hiv
#3
Mollie A Monnig, Christopher W Kahler, Patricia A Cioe, Peter M Monti, Kenneth H Mayer, David W Pantalone, Ronald A Cohen, Bharat Ramratnam
HIV infection and alcohol use disorder are associated with deficits in neurocognitive function. Emerging evidence points to pro-inflammatory perturbations of the gut-brain axis as potentially contributing to neurocognitive impairment in the context of HIV and chronic heavy alcohol use. This study examined whether plasma markers of microbial translocation (LPS) from the gastrointestinal tract and related immune activation (sCD14, EndoCAb) were associated with neurocognition in 21 men living with HIV who were virally suppressed on antiretroviral therapy...
September 21, 2017: Microorganisms
https://www.readbyqxmd.com/read/28933907/generating-lies-produces-lower-memory-predictions-and-higher-memory-performance-than-telling-the-truth-evidence-for-a-metacognitive-illusion
#4
Miri Besken
Manipulations that induce disfluency during encoding generally produce lower memory predictions for the disfluent condition than for the fluent condition. Similar to other manipulations of disfluency, generating lies takes longer and requires more mental effort than does telling the truth; hence, a manipulation of lie generation might produce patterns similar to other types of fluency for memory predictions. The current study systematically investigates the effect of a lie-generation manipulation on both actual and predicted memory performance...
September 21, 2017: Journal of Experimental Psychology. Learning, Memory, and Cognition
https://www.readbyqxmd.com/read/28932019/towards-identifying-dyslexia-in-standard-indonesian-the-development-of-a-reading-assessment-battery
#5
Bernard A J Jap, Elisabeth Borleffs, Ben A M Maassen
With its transparent orthography, Standard Indonesian is spoken by over 160 million inhabitants and is the primary language of instruction in education and the government in Indonesia. An assessment battery of reading and reading-related skills was developed as a starting point for the diagnosis of dyslexia in beginner learners. Founded on the International Dyslexia Association's definition of dyslexia, the test battery comprises nine empirically motivated reading and reading-related tasks assessing word reading, pseudoword reading, arithmetic, rapid automatized naming, phoneme deletion, forward and backward digit span, verbal fluency, orthographic choice (spelling), and writing...
2017: Reading and Writing
https://www.readbyqxmd.com/read/28930751/dementia-predicting-cognitive-risk-score-and-its-correlation-with-cortical-thickness-in-parkinson-disease
#6
Byoung Seok Ye, Seun Jeon, Jee Hyun Ham, Jae Jung Lee, Jong Min Lee, Hye Sun Lee, Phil Hyu Lee, Young H Sohn
BACKGROUND: We developed a risk score system to predict risks of developing dementia in individual Parkinson disease (PD) patients using baseline neuropsychological tests. METHODS: A total of 216 nondemented PD patients underwent a baseline neuropsychological evaluation and were followed up for a mean of 2.7 (±1.1) years. Univariate Cox regression models controlled for age, gender, and education selected neuropsychological tests individually predicting dementia risk...
September 21, 2017: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/28926815/cognitive-function-and-walking-velocity-in-people-with-dementia-a-comparison-of-backward-and-forward-walking
#7
Hanna Johansson, Lillemor Lundin-Olsson, Håkan Littbrand, Yngve Gustafson, Erik Rosendahl, Annika Toots
How forward and backward walking, both central to everyday life, relate to cognition are relatively unexplored in people with dementia. This study aimed to investigate if forward and backward walking velocity respectively, associated with global cognition and executive function in people with dementia, and whether the association differed according to walking aid use or dementia type. Using a cross-sectional design, 161 participants (77% women), a mean Mini-Mental State Examination (MMSE) score of 15, and mean age of 85...
September 9, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28926415/semantic-memory-in-the-clinical-progression-of-alzheimer-disease
#8
Christophe T Tchakoute, Kristin L Sainani, And Victor W Henderson
BACKGROUND AND OBJECTIVE: Semantic memory measures may be useful in tracking and predicting progression of Alzheimer disease. We investigated relationships among semantic memory tasks and their 1-year predictive value in women with Alzheimer disease. METHODS: We conducted secondary analyses of a randomized clinical trial of raloxifene in 42 women with late-onset mild-to-moderate Alzheimer disease. We assessed semantic memory with tests of oral confrontation naming, category fluency, semantic recognition and semantic naming, and semantic density in written narrative discourse...
September 2017: Cognitive and Behavioral Neurology: Official Journal of the Society for Behavioral and Cognitive Neurology
https://www.readbyqxmd.com/read/28926308/neuropsychological-differences-between-men-and-women-with-alzheimer-s-disease
#9
Joseph J Ryan, Laura Glass Umfleet, David S Kreiner, Amanda M Fuller, Anthony M Paolo
BACKGROUND: It has been suggested that men and women with Alzheimer's disease (AD) at comparable levels of global cognitive impairment perform differently on neuropsychological measures. Such differences may have practical implications for designing cognitive interventions that address symptoms of dementia. METHODS: We compared men (n = 86) and women (n = 96) with AD on tests of immediate and delayed prose memory, verbal fluency, semantic fluency, semantic memory, and confrontation naming...
September 19, 2017: International Journal of Neuroscience
https://www.readbyqxmd.com/read/28922960/cognitive-performance-in-transient-global-hypoxic-brain-injury-due-to-moderate-drowning
#10
Mariana Penteado Nucci, Katerina Lukasova, Gilson Vieira, João Ricardo Sato, Edson Amaro Júnior
INTRODUCTION: Drowning is a serious and frequently neglected public health threat. Primary respiratory impairment after submersion often leads to brain dysfunction. Depending on the period of global hypoxia (respiratory failure), clinical aspects of neurological dysfunction are evident on the first evaluation after the water rescue. Nowadays, many neuropsychological assessments after drowning are inconclusive, with some studies reporting only minor neurological or cognitive impairments...
September 19, 2017: Journal of Clinical and Experimental Neuropsychology
https://www.readbyqxmd.com/read/28922167/statins-and-cognition-in-parkinson-s-disease
#11
Benjamin L Deck, Jacqueline Rick, Sharon X Xie, Alice Chen-Plotkin, John E Duda, James F Morley, Lana M Chahine, Nabila Dahodwala, John Q Trojanowski, Daniel Weintraub
The relationship between statins and cognition in Parkinson's disease (PD) is poorly understood. Analyses were performed to determine associations between statin use and cross-sectional and longitudinal cognitive performance in PD. Neuropsychological tests, medication logs, and ratings of functional abilities were collected from 313 PD participants longitudinally. At baseline, statin users (SU; N = 129) were older, more likely male, and had shorter PD duration than non-statin users (NSU; N = 184). In Cross-sectional analysis, SU performed better on global cognition, Trails B, semantic fluency, and phonemic fluency tasks...
September 11, 2017: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/28921863/gender-differences-in-brain-networks-during-verbal-sternberg-tasks-a-simultaneous-near-infrared-spectroscopy-and-electro-encephalography-study
#12
Chenyang Gao, Jinyan Sun, Xiaoquan Yang, Hui Gong
Gender differences in psychological processes have been of great interest in a variety of fields including verbal fluency, emotion processing, and working memory. Previous studies suggested that women outperform men in verbal working memory (VWM). However, the inherent mechanisms are still unclear. To obtain a deeper insight into the gender differences in brain networks in VWM, this study used near-infrared spectroscopy (NIRS) and electro-encephalography (EEG) simultaneously to investigate gender-related brain networks during verbal Sternberg tasks...
September 17, 2017: Journal of Biophotonics
https://www.readbyqxmd.com/read/28920071/predicting-the-past-remembering-the-future
#13
Samuel J Gershman
Rational analyses of memory suggest that retrievability of past experience depends on its usefulness for predicting the future: memory is adapted to the temporal structure of the environment. Recent research has enriched this view by applying it to semantic memory and reinforcement learning. This paper describes how multiple forms of memory can be linked via common predictive principles, possibly subserved by a shared neural substrate in the hippocampus. Predictive principles offer an explanation for a wide range of behavioral and neural phenomena, including semantic fluency, temporal contiguity effects in episodic memory, and the topological properties of hippocampal place cells...
October 2017: Current Opinion in Behavioral Sciences
https://www.readbyqxmd.com/read/28919856/visualizing-hyperactivation-in-neurodegeneration-based-on-prefrontal-oxygenation-a-comparative-study-of-mild-alzheimer-s-disease-mild-cognitive-impairment-and-healthy-controls
#14
Kah Hui Yap, Wei Chun Ung, Esther G M Ebenezer, Nadira Nordin, Pui See Chin, Sandheep Sugathan, Sook Ching Chan, Hung Loong Yip, Masashi Kiguchi, Tong Boon Tang
Background: Cognitive performance is relatively well preserved during early cognitive impairment owing to compensatory mechanisms. Methods: We explored functional near-infrared spectroscopy (fNIRS) alongside a semantic verbal fluency task (SVFT) to investigate any compensation exhibited by the prefrontal cortex (PFC) in Mild Cognitive Impairment (MCI) and mild Alzheimer's disease (AD). In addition, a group of healthy controls (HC) was studied. A total of 61 volunteers (31 HC, 12 patients with MCI and 18 patients with mild AD) took part in the present study...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28912737/neuropsychological-profile-of-specific-executive-dysfunctions-in-patients-with-deficit-and-non-deficit-schizophrenia
#15
Ernest Tyburski, Justyna Pełka-Wysiecka, Monika Mak, Agnieszka Samochowiec, Przemysław Bieńkowski, Jerzy Samochowiec
Objectives: Although it has been shown that there are more profound deficits present in deficit schizophrenia (DS) patients than in non-deficit schizophrenia (NDS) patients, there still remain some matters requiring further investigation. In this context, we formulated three research aims: (1) to compare executive functions between the investigated groups, (2) to determine the relationship between particular aspects of executive functions within the groups, and (3) to draw up a neuropsychological profile for executive functions...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28911268/apathy-not-depressive-symptoms-as-a-predictor-of-semantic-and-phonemic-fluency-task-performance-in-stroke-and-transient-ischemic-attack
#16
Keera N Fishman, Andrea R Ashbaugh, Krista L Lanctôt, Megan L Cayley, Nathan Herrmann, Brian J Murray, Michelle Sicard, Karen Lien, Demetrios J Sahlas, Richard H Swartz
OBJECTIVES: This study examined the relationship between apathy and cognition in patients with cerebrovascular disease. Apathy may result from damage to frontal subcortical circuits causing dysexecutive syndromes, but apathy is also related to depression. We assessed the ability of apathy to predict phonemic fluency and semantic fluency performance after controlling for depressive symptoms in 282 individuals with stroke and/or transient ischemic attack. METHOD: Participants (N = 282) completed the Phonemic Fluency Test, Semantic Fluency Test, Center for Epidemiologic Studies Depression Scale, and Apathy Evaluation Scale...
September 15, 2017: Journal of Clinical and Experimental Neuropsychology
https://www.readbyqxmd.com/read/28904971/cognitive-or-cognitive-motor-executive-function-tasks-evaluating-verbal-fluency-measures-in-people-with-parkinson-s-disease
#17
Alessandra Ferreira Barbosa, Mariana Callil Voos, Janini Chen, Debora Cristina Valente Francato, Carolina de Oliveira Souza, Egberto Reis Barbosa, Hsin Fen Chien, Letícia Lessa Mansur
INTRODUCTION: Executive function deficits are observed in people with Parkinson's disease (PD) from early stages and have great impact on daily living activities. Verbal fluency and oral diadochokinesia involve phonarticulatory coordination, response inhibition, and phonological processing and may also be affected in people with PD. This study aimed to describe the performance of PD patients and an age- and education-matched control group on executive function, verbal fluency, and oral diadochokinesia tests and to investigate possible relationships between them...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28904086/cognitive-trajectories-over-4-years-among-hiv-infected-women-with-optimal-viral-suppression
#18
Leah H Rubin, Pauline M Maki, Gayle Springer, Lorie Benning, Kathryn Anastos, Deborah Gustafson, Maria C Villacres, Xiong Jiang, Adaora A Adimora, Drenna Waldrop-Valverde, David E Vance, Hector Bolivar, Christine Alden, Eileen M Martin, Victor G Valcour
OBJECTIVE: To determine whether persistent viral suppression alters cognitive trajectories among HIV-infected (HIV+) women on combination antiretroviral therapy (cART) by investigating performance longitudinally in uninfected (HIV-) and 3 groups of HIV+ women: those with consistent viral suppression after continuous cART use (VS), those without consistent virologic suppression despite continuous cART use (NVS), and those without consistent virologic suppression after intermittent cART use (Int NVS)...
September 13, 2017: Neurology
https://www.readbyqxmd.com/read/28903704/emotion-decoding-and-incidental-processing-fluency-as-antecedents-of-attitude-certainty
#19
John V Petrocelli, Melanie B Whitmire
Previous research demonstrates that attitude certainty influences the degree to which an attitude changes in response to persuasive appeals. In the current research, decoding emotions from facial expressions and incidental processing fluency, during attitude formation, are examined as antecedents of both attitude certainty and attitude change. In Experiment 1, participants who decoded anger or happiness during attitude formation expressed their greater attitude certainty, and showed more resistance to persuasion than participants who decoded sadness...
July 2017: Personality & Social Psychology Bulletin
https://www.readbyqxmd.com/read/28901834/association-between-gait-and-dual-task-with-cognitive-domains-in-older-people-with-cognitive-impairment
#20
Juliana Hotta Ansai, Larissa Pires de Andrade, Paulo Giusti Rossi, Mariana Luciano Almeida, Francisco Assis Carvalho Vale, José Rubens Rebelatto
The authors investigated whether impaired gait and dual-task performances are associated with specific cognitive domains among older people with preserved cognition (PC), mild cognitive impairment (MCI), and mild Alzheimer's disease (AD). The sample comprised 40 older adults with PC, 40 with MCI, and 38 with mild AD. The assessment consisted of gait (measured by 10-m walk test and Timed Up and Go Test [TUGT]), dual task (measured by TUGT associated with a cognitive-motor task of calling a phone number), and cognition (domains of the Addenbrooke Cognitive Examination-Revised and Frontal Assessment Battery [FAB])...
September 13, 2017: Journal of Motor Behavior
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