keyword
MENU ▼
Read by QxMD icon Read
search

"Working memory"

keyword
https://www.readbyqxmd.com/read/28453603/the-effect-of-insomnia-on-neuropsychological-functioning-in-patients-with-comorbid-symptoms-of-pain-fatigue-and-mood-disorders
#1
Julie Aasvik, Tore C Stiles, Astrid Woodhouse, Petter Borchgrevink, Nils Inge Landrø
Objectives: To examine if elevated symptoms of insomnia affects neuropsychological functioning in patients with concurrent symptoms of pain, fatigue, and mood disorders. Methods and results: A total of seventy-six subjects participated in this (cross-sectional) study. Based on the cut-off score guidelines from The Insomnia Severity Index subjects were assigned to either a clinical insomnia group (N = 35) or a comparison group (N = 41). Factors such as age, general cognitive functioning, and symptoms of pain, fatigue, depression, and anxiety did not differ between the groups...
April 27, 2017: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/28453532/feasibility-of-computerized-working-memory-training-in-individuals-with-huntington-disease
#2
Mahsa Sadeghi, Emily Barlow-Krelina, Clare Gibbons, Komal T Shaikh, Wai Lun Alan Fung, Wendy S Meschino, Christine Till
OBJECTIVES: Huntington disease (HD) is associated with a variety of cognitive deficits, with prominent difficulties in working memory (WM). WM deficits are notably compromised in early-onset and prodromal HD patients. This study aimed to determine the feasibility of a computerized WM training program (Cogmed QM), novel to the HD population. METHODS: Nine patients, aged 26-62, with early stage HD underwent a 25-session (5 days/week for 5 weeks) WM training program (Cogmed QM)...
2017: PloS One
https://www.readbyqxmd.com/read/28453480/a-multifunctional-biocompatible-drug-candidate-is-highly-effective-in-delaying-pathological-signs-of-alzheimer-s-disease-in-5xfad-mice
#3
Hadar Segal-Gavish, Ortal Danino, Yael Barhum, Tali Ben-Zur, Ella Shai, David Varon, Daniel Offen, Bilha Fischer
BACKGROUND: Metal-ion-chelation was suggested to prevent zinc and copper ions-induced amyloid-β (Aβ) aggregation and oxidative stress, both implicated in the pathophysiology of Alzheimer's disease (AD). In a quest for biocompatible metal-ion chelators potentially useful for AD therapy, we previously tested a series of nucleoside 5'-phosphorothioate derivatives as agents for decomposition of Cu(I)/Cu(II)/Zn(II)-Aβ-aggregates, and as inhibitors of OH radicals formation in Cu(I) or Fe(II) /H2O2 solution...
April 28, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28453474/neuropsychological-profile-in-the-c9orf72-associated-behavioral-variant-frontotemporal-dementia
#4
Noora-Maria Suhonen, Ramona M Haanpää, Ville Korhonen, Jari Jokelainen, Anni Pitkäniemi, Anna-Leena Heikkinen, Johanna Krüger, Päivi Hartikainen, Seppo Helisalmi, Mikko Hiltunen, Tuomo Hänninen, Anne M Remes
While the C9ORF72 expansion is a major cause of behavioral variant frontotemporal dementia (bvFTD), little is known of the resultant cognitive profile. Our aim was to characterize the neuropsychological profile of the C9ORF72 associated bvFTD. We contrasted structured neuropsychological assessments of the C9ORF72 expansion carrier bvFTD patients (n = 26) with non-carrier bvFTD patients (n = 47) and those with Alzheimer's disease (AD) (n = 47). As compared to the non-carrier bvFTD patients, the C9ORF72 expansion carriers performed at a higher level in an immediate verbal memory test while showing poorer phonemic verbal fluency...
April 28, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28449242/resting-sympathetic-arousal-moderates-the-association-between-parasympathetic-reactivity-and-working-memory-performance-in-adults-reporting-high-levels-of-life-stress
#5
Ryan J Giuliano, Lisa M Gatzke-Kopp, Leslie E Roos, Elizabeth A Skowron
The neurovisceral integration model stipulates that autonomic function plays a critical role in the regulation of higher-order cognitive processes, yet most work to date has examined parasympathetic function in isolation from sympathetic function. Furthermore, the majority of work has been conducted on normative samples, which typically demonstrate parasympathetic withdrawal to increase arousal needed to complete cognitive tasks. Little is known about how autonomic regulation supports cognitive function in populations exposed to high levels of stress, which is critical given that chronic stress exposure alters autonomic function...
April 27, 2017: Psychophysiology
https://www.readbyqxmd.com/read/28448820/is-there-a-link-between-biological-parents-insight-into-their-offspring-s-schizophrenia-and-their-cognitive-functioning-expressed-emotion-and-knowledge-about-disorder
#6
Alexandra Macgregor, Joanna Norton, Stéphane Raffard, Delphine Capdevielle
BACKGROUND: Recent studies suggest that parents' awareness of their offspring's schizophrenia could influence their offspring's insight. Low patient insight is linked to impairment of specific cognitive abilities, and biological parents of schizophrenia patients have impaired capacities in these same domains. However, little is known about what specific socio-demographic, affective or cognitive factors may influence biological parents' awareness of their offspring's disease. METHOD: Data were drawn from 41 patient-parent dyads...
April 13, 2017: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/28448453/working-memory-in-the-prefrontal-cortex
#7
REVIEW
Shintaro Funahashi
The prefrontal cortex participates in a variety of higher cognitive functions. The concept of working memory is now widely used to understand prefrontal functions. Neurophysiological studies have revealed that stimulus-selective delay-period activity is a neural correlate of the mechanism for temporarily maintaining information in working memory processes. The central executive, which is the master component of Baddeley's working memory model and is thought to be a function of the prefrontal cortex, controls the performance of other components by allocating a limited capacity of memory resource to each component based on its demand...
April 27, 2017: Brain Sciences
https://www.readbyqxmd.com/read/28447609/spatial-working-memory-alters-the-efficacy-of-input-to-visual-cortex
#8
Yaser Merrikhi, Kelsey Clark, Eddy Albarran, Mohammadbagher Parsa, Marc Zirnsak, Tirin Moore, Behrad Noudoost
Prefrontal cortex modulates sensory signals in extrastriate visual cortex, in part via its direct projections from the frontal eye field (FEF), an area involved in selective attention. We find that working memory-related activity is a dominant signal within FEF input to visual cortex. Although this signal alone does not evoke spiking responses in areas V4 and MT during memory, the gain of visual responses in these areas increases, and neuronal receptive fields expand and shift towards the remembered location, improving the stimulus representation by neuronal populations...
April 27, 2017: Nature Communications
https://www.readbyqxmd.com/read/28447268/atypical-age-dependency-of-executive-function-and-white-matter-microstructure-in-children-and-adolescents-with-autism-spectrum-disorders
#9
Kenia Martínez, Jessica Merchán-Naranjo, Laura Pina-Camacho, Yasser Alemán-Gómez, Leticia Boada, David Fraguas, Carmen Moreno, Celso Arango, Joost Janssen, Mara Parellada
Executive function (EF) performance is associated with measurements of white matter microstructure (WMS) in typical individuals. Impaired EF is a hallmark symptom of autism spectrum disorders (ASD) but it is unclear how impaired EF relates to variability in WMS. Twenty-one male youth (8-18 years) with ASD and without intellectual disability and twenty-one typical male participants (TP) matched for age, intelligence quotient, handedness, race and parental socioeconomic status were recruited. Five EF domains were assessed and several DTI-based measurements of WMS [fractional anisotropy (FA), mean diffusivity (MD) and radial diffusivity (RD)] were estimated for eighteen white matter tracts...
April 26, 2017: European Child & Adolescent Psychiatry
https://www.readbyqxmd.com/read/28446629/vitamin-d-receptor-and-megalin-gene-polymorphisms-are-associated-with-longitudinal-cognitive-change-among-african-american-urban-adults
#10
May A Beydoun, Salman M Tajuddin, Greg A Dore, Jose-Atilio Canas, Hind A Beydoun, Michele K Evans, Alan B Zonderman
Background: The link between longitudinal cognitive change and polymorphisms in the vitamin D receptor (VDR) and MEGALIN [or LDL receptor-related protein 2 (LRP2)] genes remains unclear, particularly among African-American (AA) adults.Objectives: We aimed to evaluate associations of single nucleotide polymorphisms (SNPs) for VDR [rs11568820 (Cdx-2:T/C), rs1544410 (BsmI:G/A), rs7975232 (ApaI:A/C), rs731236 (TaqI:G/A)] and LRP2 [rs3755166:G/A,rs2075252:C/T, rs2228171:C/T] genes with longitudinal cognitive performance change in various domains of cognition...
April 26, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28445213/learner-patient-and-supervisor-features-are-associated-with-different-types-of-cognitive-load-during-procedural-skills-training-implications-for-teaching-and-instructional-design
#11
Justin L Sewell, Christy K Boscardin, John Q Young, Olle Ten Cate, Patricia S O'Sullivan
PURPOSE: Cognitive load theory, focusing on limits of the working memory, is relevant to medical education; however, factors associated with cognitive load during procedural skills training are not well characterized. The authors sought to determine how features of learners, patients/tasks, settings, and supervisors were associated with three types of cognitive load among learners performing a specific procedure, colonoscopy, to identify implications for procedural teaching. METHOD: Data were collected through an electronically administered survey sent to 1,061 U...
April 25, 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/28444104/psychomotor-ability-and-short-term-memory-and-reading-and-mathematics-achievement-in-children
#12
Cherée Murrihy, Maria Bailey, John Roodenburg
Objective: The aim of our study was to examine whether the findings from previous research, indicating the role of short-term memory as a mediator of the relationship between motor coordination and academic achievement in adolescents, is also evident in a younger child population. Method: The study utilized a quantative cross-sectional design involving 133 children aged 8-12. The McCarron Assessment of Neuromuscular Development (MAND) provided four indicators of psychomotor ability (Finger Nose, Walking, Balancing, and Jumping)...
April 24, 2017: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/28442186/the-acceptability-and-potential-utility-of-cognitive-training-to-improve-working-memory-in-persons-living-with-hiv-a-preliminary-randomized-trial
#13
Sheri L Towe, Puja Patel, Christina S Meade
HIV-associated neurocognitive impairments that impact daily function persist in the era of effective antiretroviral therapy. Cognitive training, a promising low-cost intervention, has been shown to improve neurocognitive functioning in some clinical populations. We tested the feasibility, acceptability, and preliminary effects of computerized cognitive training to improve working memory in persons living with HIV infection (PLWH) and working memory impairment. In this randomized clinical trial, we assigned 21 adult PLWH to either an experimental cognitive training intervention or an attention-matched control training intervention...
March 30, 2017: Journal of the Association of Nurses in AIDS Care: JANAC
https://www.readbyqxmd.com/read/28441521/lost-in-distractors-reduced-autobiographical-memory-specificity-and-dispersed-activation-spreading-over-distractors-in-working-memory
#14
Keisuke Takano, Jun Moriya, Filip Raes
Studies on autobiographical memory retrieval highlight the prominence of rapid and direct access to a specific event memory. Because it has been believed that autobiographical memory retrieval mostly relies on an effortful generative process, there is little empirical evidence on the early stage of information processing that contributes to autobiographical memory specificity (AMS). Therefore, we investigated the associations between AMS and automatic activation of information stimulated by rapid presentation of emotional words...
April 19, 2017: Behaviour Research and Therapy
https://www.readbyqxmd.com/read/28440817/effects-of-dopamine-d2-d3-receptor-antagonism-on-human-planning-and-spatial-working-memory
#15
M Naef, U Müller, A Linssen, L Clark, T W Robbins, C Eisenegger
Psychopharmacological studies in humans suggest important roles for dopamine (DA) D2 receptors in human executive functions, such as cognitive planning and spatial working memory (SWM). However, studies that investigate an impairment of such functions using the selective DA D2/3 receptor antagonist sulpiride have yielded inconsistent results, perhaps because relatively low doses were used. We believe we report for the first time, the effects of a higher (800 mg p.o.) single dose of sulpiride as well as of genetic variation in the DA receptor D2 gene (DA receptor D2 Taq1A polymorphism), on planning and working memory...
April 25, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28439250/differential-impact-of-visuospatial-working-memory-on-rule-based-and-information-integration-category-learning
#16
Qiang Xing, Hailong Sun
Previous studies have indicated that the category learning system is a mechanism with multiple processing systems, and that working memory has different effects on category learning. But how does visuospatial working memory affect perceptual category learning? As there is no definite answer to this question, we conducted three experiments. In Experiment 1, the dual-task paradigm with sequential presentation was adopted to investigate the influence of visuospatial working memory on rule-based and information-integration category learning...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28439231/informing-the-structure-of-executive-function-in-children-a-meta-analysis-of-functional-neuroimaging-data
#17
Róisín McKenna, T Rushe, Kate A Woodcock
The structure of executive function (EF) has been the focus of much debate for decades. What is more, the complexity and diversity provided by the developmental period only adds to this contention. The development of executive function plays an integral part in the expression of children's behavioral, cognitive, social, and emotional capabilities. Understanding how these processes are constructed during development allows for effective measurement of EF in this population. This meta-analysis aims to contribute to a better understanding of the structure of executive function in children...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28439225/magnitude-codes-for-cross-modal-working-memory-in-the-primate-frontal-association-cortex
#18
REVIEW
Andreas Nieder
Quantitative features of stimuli may be ordered along a magnitude continuum, or line. Magnitude refers to parameters of different types of stimulus properties. For instance, the frequency of a sound relates to sensory and continuous stimulus properties, whereas the number of items in a set is an abstract and discrete property. In addition, within a stimulus property, magnitudes need to be processed not only in one modality, but across multiple modalities. In the sensory domain, for example, magnitude applies to both to the frequency of auditory sounds and tactile vibrations...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28439211/examining-the-relations-between-self-regulation-and-achievement-in-third-grade-students
#19
Stephanie L Day, Carol M Connor
Children with stronger self-regulation skills generally demonstrate greater overall success in school both academically and socially. However, there are few valid and reliable measures of self-regulation in middle elementary school. Such a measure could help identify whether a child is truly having difficulties. Thus, the Remembering Rules and Regulation Picture Task (RRRP) was developed. The aim of this study was to develop scoring systems for the RRRP and then to examine the associations between RRRP and independent measures of self-regulation and academic achievement in mathematics and reading...
March 2017: Assessment for Effective Intervention: Official Journal of the Council for Educational Diagnostic Services
https://www.readbyqxmd.com/read/28438529/an-erp-investigation-of-vertical-reading-fluency-in-scrabble-%C3%A2-experts
#20
Sophia van Hees, Sabine Seyffarth, Penny M Pexman, Filomeno Cortese, Andrea B Protzner
Previous studies have found that competitive Scrabble expertise is associated with enhanced performance on visual lexical decision tasks (LDT), particularly for vertically presented stimuli. In the current study, we investigated the underlying mechanisms responsible for this vertical fluency. We examined behaviour and neural activity during LDT in 19 competitive Scrabble players and 18 matched controls. Using event related potentials (ERP), we investigated whether Scrabble expertise modulates the N170, P300, and late positive component (LPC), associated with visual-orthographic processing, working memory, and stimulus classification, respectively...
April 21, 2017: Brain Research
keyword
keyword
113564
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"