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"Working memory"

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https://www.readbyqxmd.com/read/29145671/distinct-cerebellar-contributions-to-cognitive-perceptual-dynamics-during-natural-viewing
#1
Vinh Thai Nguyen, Saurabh Sonkusare, Jane Stadler, Xintao Hu, Michael Breakspear, Christine Cong Guo
The crucial role of the cerebellum in motor learning and coordination is very well known. Considerable interest has recently shifted toward its contribution to nonmotor tasks, such as working memory, emotion, and language. However, the cognitive role and functional subdivisions of the cerebellum, particularly in dynamic, ecologically realistic contexts, are not yet established. By analyzing functional neuroimaging data acquired while participants viewed a short dramatic movie, we found that posterior and inferior cerebellar regions are reliably engaged in dynamic perceptual and affective processes with no explicit motor component...
December 1, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/29145605/corrigendum-to-stereotype-threat-effects-on-older-adults-episodic-and-working-memory-a-meta-analysis
#2
Bonnie Armstrong, Sara N Gallant, Lingqian Li, Khushi Patel, Brenda I Wong
No abstract text is available yet for this article.
November 14, 2017: Gerontologist
https://www.readbyqxmd.com/read/29145402/specific-effects-of-working-memory-training-on-the-reading-skills-of-chinese-children-with-developmental-dyslexia
#3
Juanhua Yang, Jun Peng, Dake Zhang, Liling Zheng, Lei Mo
Most research on working memory (WM) training for children with developmental dyslexia (DD) has focused on western alphabetical languages. Moreover, most of these studies used a combination of training tasks targeting a variety of WM components, making it difficult to determine whether WM training generates a general improvement in overall reading, or improves specific cognitive skills corresponding to the WM components that are targeted in training. We tested the general and specific effects of WM training on the reading skills of 45 Chinese children with DD, grades 3 to 5...
2017: PloS One
https://www.readbyqxmd.com/read/29144226/do-executive-functions-explain-the-covariance-between-internalizing-and-externalizing-behaviors
#4
Alexander S Hatoum, Soo Hyun Rhee, Robin P Corley, John K Hewitt, Naomi P Friedman
This study examined whether executive functions (EFs) might be common features of internalizing and externalizing behavior problems across development. We examined relations between three EF latent variables (a common EF factor and factors specific to updating working memory and shifting sets), constructed from nine laboratory tasks administered at age 17, to latent growth intercept (capturing stability) and slope (capturing change) factors of teacher- and parent-reported internalizing and externalizing behaviors in 885 individual twins aged 7 to 16 years...
November 16, 2017: Development and Psychopathology
https://www.readbyqxmd.com/read/29144224/violence-exposure-and-neural-systems-underlying-working-memory-for-emotional-stimuli-in-youth
#5
Jessica L Jenness, Maya L Rosen, Kelly A Sambrook, Meg J Dennison, Hilary K Lambert, Margaret A Sheridan, Katie A McLaughlin
Violence exposure during childhood is common and associated with poor cognitive and academic functioning. However, little is known about how violence exposure influences cognitive processes that might contribute to these disparities, such as working memory, or their neural underpinnings, particularly for cognitive processes that occur in emotionally salient contexts. We address this gap in a sample of 54 participants aged 8 to 19 years (50% female), half with exposure to interpersonal violence. Participants completed a delayed match to sample task for emotional faces while undergoing functional magnetic resonance imaging scanning...
November 16, 2017: Development and Psychopathology
https://www.readbyqxmd.com/read/29144168/the-effects-of-extended-nap-periods-on-cognitive-physiological-and-subjective-responses-under-simulated-night-shift-conditions
#6
Jonathan Davy, Matthias Göbel
Extended nap opportunities have been effective in maintaining alertness in the context of extended night shifts (+12 h). However, there is limited evidence of their efficacy during 8-h shifts. Thus, this study explored the effects of extended naps on cognitive, physiological and perceptual responses during four simulated, 8-h night shifts. In a laboratory setting, 32 participants were allocated to one of three conditions. All participants completed four consecutive, 8-h night shifts, with the arrangements differing by condition...
November 16, 2017: Chronobiology International
https://www.readbyqxmd.com/read/29143762/executive-function-capacities-negative-driving-behavior-and-crashes-in-young-drivers
#7
REVIEW
Elizabeth A Walshe, Chelsea Ward McIntosh, Daniel Romer, Flaura K Winston
Motor vehicle crashes remain a leading cause of injury and death in adolescents, with teen drivers three times more likely to be in a fatal crash when compared to adults. One potential contributing risk factor is the ongoing development of executive functioning with maturation of the frontal lobe through adolescence and into early adulthood. Atypical development resulting in poor or impaired executive functioning (as in Attention-Deficit/Hyperactivity Disorder) has been associated with risky driving and crash outcomes...
October 28, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29141041/effects-of-a-mixed-berry-beverage-on-cognitive-functions-and-cardiometabolic-risk-markers-a-randomized-cross-over-study-in-healthy-older-adults
#8
Anne Nilsson, Ilkka Salo, Merichel Plaza, Inger Björck
BACKGROUND: Berries and associated bioactive compounds, e.g. polyphenols and dietary fibre (DF), may have beneficial implications with respect to the metabolic syndrome, including also cognitive functions. The aim of this study was to evaluate effects on cognitive functions and cardiometabolic risk markers of 5 wk intervention with a mixture of berries, in healthy humans. METHODS: Forty healthy subjects between 50-70 years old were provided a berry beverage based on a mixture of berries (150g blueberries, 50g blackcurrant, 50g elderberry, 50g lingonberries, 50g strawberry, and 100g tomatoes) or a control beverage, daily during 5 weeks in a randomized crossover design...
2017: PloS One
https://www.readbyqxmd.com/read/29140504/selective-attention-working-memory-and-executive-function-as-potential-independent-sources-of-cognitive-dysfunction-in-schizophrenia
#9
James M Gold, Benjamin Robinson, Carly J Leonard, Britta Hahn, Shuo Chen, Robert P McMahon, Steven J Luck
People with schizophrenia demonstrate impairments in selective attention, working memory, and executive function. Given the overlap in these constructs, it is unclear if these represent distinct impairments or different manifestations of one higher-order impairment. To examine this question, we administered tasks from the basic cognitive neuroscience literature to measure visual selective attention, working memory capacity, and executive function in 126 people with schizophrenia and 122 healthy volunteers. Patients demonstrated deficits on all tasks with the exception of selective attention guided by strong bottom-up inputs...
November 11, 2017: Schizophrenia Bulletin
https://www.readbyqxmd.com/read/29139174/neural-mechanisms-of-interference-control-in-working-memory-capacity
#10
Jessica Bomyea, Charles T Taylor, Andrea D Spadoni, Alan N Simmons
The extent to which one can use cognitive resources to keep information in working memory is known to rely on (1) active maintenance of target representations and (2) downregulation of interference from irrelevant representations. Neurobiologically, the global capacity of working memory is thought to depend on the prefrontal and parietal cortices; however, the neural mechanisms involved in controlling interference specifically in working memory capacity tasks remain understudied. In this study, 22 healthy participants completed a modified complex working memory capacity task (Reading Span) with trials of varying levels of interference control demands while undergoing functional MRI...
November 14, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/29137828/differentiating-between-clinical-and-behavioral-phenotypes-in-first-episode-psychosis-during-maintenance-of-visuospatial-working-memory
#11
Maria Jalbrzikowski, Vishnu P Murty, Patricia L Stan, Jusmita Saifullan, Daniel Simmonds, William Foran, Beatriz Luna
INTRODUCTION: We probed the neural basis of working memory in individuals with first episode of psychosis (FEP) and assessed how these neural abnormalities are associated with behavioral performance and/or core to psychosis pathophysiology. METHODS: FEP (N=35) and matched controls (N=25) performed a visuospatial working memory task during fMRI acquisition. We isolated neural activity during the maintenance period and examined neural activity within regions typically engaged during a working memory task...
November 11, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/29135697/does-working-memory-moderate-the-within-person-associations-between-pain-intensity-and-negative-affect-and-pain-s-interference-with-work-goal-pursuit
#12
Chung Jung Mun, Paul Karoly, Morris A Okun
OBJECTIVES: Chronic pain exerts a pervasive negative influence on workers' productivity. However, a paucity of research has addressed the mechanisms underlying the pain → productivity relation. In the present study using intensive daily diary data, we examined whether working memory (WM) moderates the positive within-person associations between (a) morning pain intensity and (b) morning negative affect and later day pain's interference of work-goal pursuit. METHODS: A community sample of 131 adults with chronic pain completed a battery of questionnaires, laboratory-measured WM, and a 21-day daily diary...
November 10, 2017: Clinical Journal of Pain
https://www.readbyqxmd.com/read/29135273/-neuroscience-of-mental-flexibility
#13
Zoltán Janka
Mental flexibility enabling shifts from the usual prepotent behaviour to new strategies and solutions is a significant factor in the successful adaptation to the changing environment. Components of mental flexibility comprise attention, salience detection, inhibition, working memory and switch processes which can be measured by neurocognitive tests. Data derived from examinations by the methods of cognitive neuroscience can be compared to the features, observed under resting state and during task performance, of brain structures and functions...
November 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/29134669/unique-contribution-of-ecuadorian-kindergartners-spontaneous-focusing-on-numerosity-to-their-early-numerical-abilities
#14
Joke Torbeyns, Gina Bojorque, Jo Van Hoof, Daniël Van Nijlen, Lieven Verschaffel
Recent evidence indicates that young children's spontaneous focusing on numerosity (SFON) uniquely contributes to their early numerical abilities. This study complements previous findings by validating the relation between young children's SFON and their early numerical abilities in a developing country, namely Ecuador. We analysed 355 Ecuadorian 5- to 6-year-olds' SFON in relation to their early numerical abilities at the start of kindergarten, controlling for children's socio-demographic (socio-economic status, age) and general cognitive (working memory, intelligence) characteristics...
November 14, 2017: British Journal of Developmental Psychology
https://www.readbyqxmd.com/read/29134481/inflectional-morphology-and-dyslexia-italian-children-s-performance-in-a-nonword-pluralization-task
#15
Maria Vender, Federica Mantione, Silvia Savazzi, Denis Delfitto, Chiara Melloni
In this study, we present the results of an original experimental protocol designed to assess the performance in a pluralization task of 52 Italian children divided into two groups: 24 children with developmental dyslexia (mean age 10.0 years old) and 28 typically developing children (mean age 9.11 years old). Our task, inspired by Berko's Wug Test, had the aim of testing the subjects' ability to apply pluralization rules to nonwords in the morphologically complex context of Italian nominal inflection. Results demonstrate that dyslexics display poorer morphological skills in comparison to controls, showing lower accuracy in the task...
November 13, 2017: Annals of Dyslexia
https://www.readbyqxmd.com/read/29132359/portable-wireless-neurofeedback-system-of-eeg-alpha-rhythm-enhances-memory
#16
Ting-Ying Wei, Da-Wei Chang, You-De Liu, Chen-Wei Liu, Chung-Ping Young, Sheng-Fu Liang, Fu-Zen Shaw
BACKGROUND: Effect of neurofeedback training (NFT) on enhancement of cognitive function or amelioration of clinical symptoms is inconclusive. The trainability of brain rhythm using a neurofeedback system is uncertainty because various experimental designs are used in previous studies. The current study aimed to develop a portable wireless NFT system for alpha rhythm and to validate effect of the NFT system on memory with a sham-controlled group. METHODS: The proposed system contained an EEG signal analysis device and a smartphone with wireless Bluetooth low-energy technology...
November 13, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/29131369/photobiomodulation-for-traumatic-brain-injury-and-stroke
#17
REVIEW
Michael R Hamblin
There is a notable lack of therapeutic alternatives for what is fast becoming a global epidemic of traumatic brain injury (TBI). Photobiomodulation (PBM) employs red or near-infrared (NIR) light (600-1100nm) to stimulate healing, protect tissue from dying, increase mitochondrial function, improve blood flow, and tissue oxygenation. PBM can also act to reduce swelling, increase antioxidants, decrease inflammation, protect against apoptosis, and modulate microglial activation state. All these mechanisms of action strongly suggest that PBM delivered to the head should be beneficial in cases of both acute and chronic TBI...
November 13, 2017: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/29130503/association-of-teen-mothers-and-grandmothers-parenting-capacities-with-child-development-a-study-protocol
#18
Damali Wilson, Deborah Gross, Stacy Hodgkinson, Kirby Deater-Deckard
Children born to teen mothers may experience less responsive and supportive parenting and are at heightened risk for a range of social, developmental, and health issues. There is literature to support the positive impact of grandmothers on teen parents and their children. However, what if the teen's mother is also limited in her parenting capacities? How do parenting capacities across these two generations of mothers affect the developing child? In this ongoing study we are examining two important aspects of parenting capacities, attachment quality and executive functioning, in teen mothers (TM) and their biological, co- residing mothers or grandmothers (GM or GGM)...
November 11, 2017: Research in Nursing & Health
https://www.readbyqxmd.com/read/29130060/models-of-spatial-and-temporal-dimensions-of-memory
#19
Michael E Hasselmo, James R Hinman, Holger Dannenberg, Chantal E Stern
Episodic memory involves coding of the spatial location and time of individual events. Coding of space and time is also relevant to working memory, spatial navigation, and the disambiguation of overlapping memory representations. Neurophysiological data demonstrate that neuronal activity codes the current, past and future location of an animal as well as temporal intervals within a task. Models have addressed how neural coding of space and time for memory function could arise, with both dimensions coded by the same neurons...
October 2017: Current Opinion in Behavioral Sciences
https://www.readbyqxmd.com/read/29129594/are-resting-state-spectral-power-measures-related-to-executive-functions-in-healthy-young-adults
#20
Shirley Gordon, Doron Todder, Inbal Deutsch, Dror Garbi, Nir Getter, Nachshon Meiran
Resting-state electroencephalogram (rsEEG) has been found to be associated with psychopathology, intelligence, problem solving, academic performance and is sometimes used as a supportive physiological indicator of enhancement in cognitive training interventions (e.g. neurofeedback, working memory training). In the current study, we measured rsEEG spectral power measures (relative power, between-band ratios and asymmetry) in one hundred sixty five young adults who were also tested on a battery of executive function (EF)...
November 9, 2017: Neuropsychologia
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