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Cognitive function decision making

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https://www.readbyqxmd.com/read/28532363/early-visual-cortex-as-a-multiscale-cognitive-blackboard
#1
Pieter R Roelfsema, Floris P de Lange
Neurons in early visual cortical areas not only represent incoming visual information but are also engaged by higher level cognitive processes, including attention, working memory, imagery, and decision-making. Are these cognitive effects an epiphenomenon or are they functionally relevant for these mental operations? We review evidence supporting the hypothesis that the modulation of activity in early visual areas has a causal role in cognition. The modulatory influences allow the early visual cortex to act as a multiscale cognitive blackboard for read and write operations by higher visual areas, which can thereby efficiently exchange information...
October 14, 2016: Annual Review of Vision Science
https://www.readbyqxmd.com/read/28528347/discriminative-accuracy-of-physician-and-nurse-predictions-for-survival-and-functional-outcomes-6-months-after-an-icu-admission
#2
Michael E Detsky, Michael O Harhay, Dominique F Bayard, Aaron M Delman, Anna E Buehler, Saida A Kent, Isabella V Ciuffetelli, Elizabeth Cooney, Nicole B Gabler, Sarah J Ratcliffe, Mark E Mikkelsen, Scott D Halpern
Importance: Predictions of long-term survival and functional outcomes influence decision making for critically ill patients, yet little is known regarding their accuracy. Objective: To determine the discriminative accuracy of intensive care unit (ICU) physicians and nurses in predicting 6-month patient mortality and morbidity, including ambulation, toileting, and cognition. Design, Setting, and Participants: Prospective cohort study conducted in 5 ICUs in 3 hospitals in Philadelphia, Pennsylvania, and enrolling patients who spent at least 3 days in the ICU from October 2013 until May 2014 and required mechanical ventilation, vasopressors, or both...
May 21, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28528231/neurocognitive-dysfunction-in-problem-gamblers-with-co-occurring-antisocial-personality-disorder
#3
Austin W Blum, Eric W Leppink, Jon E Grant
OBJECTIVES: Problem gamblers with symptoms of antisocial personality disorder (ASPD) may represent a distinct problem gambling subtype, but the neurocognitive profile of individuals affected by both disorders is poorly characterized. METHOD: Non-treatment-seeking young adults (18-29years) who gambled ≥5 times in the preceding year were recruited from the general community. Problem gamblers (defined as those meeting ≥1 DSM-5 diagnostic criteria for gambling disorder) with a lifetime history of ASPD (N=26) were identified using the Mini International Neuropsychiatric Interview (MINI) and compared with controls (N=266) using questionnaire-based impulsivity scales and objective computerized neuropsychological tasks...
May 12, 2017: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/28527216/effects-of-healthy-aging-and-mild-cognitive-impairment-on-a-real-life-decision-making-task
#4
Marie-Theres Pertl, Thomas Benke, Laura Zamarian, Margarete Delazer
In this study, we investigated the effects of age and of mild cognitive impairment (MCI) on decision making under risk by adopting a task representing real-life health-related situations and involving complex numerical information. Moreover, we assessed the relationship of real-life decision making to other cognitive functions such as number processing, executive functions, language, memory, and attention. For this reason, we compared the performance of 19 healthy, relatively younger adults with that of 18 healthy older adults as well as the performance of the 18 healthy older adults with that of 17 patients with MCI...
May 17, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28526585/impaired-response-selection-during-stepping-predicts-falls-in-older-people-a-cohort-study
#5
Daniel Schoene, Kim Delbaere, Stephen R Lord
BACKGROUND: Response inhibition, an important executive function, has been identified as a risk factor for falls in older people. This study investigated whether step tests that include different levels of response inhibition differ in their ability to predict falls and whether such associations are mediated by measures of attention, speed, and/or balance. METHODS: A cohort study with a 12-month follow-up was conducted in community-dwelling older people without major cognitive and mobility impairments...
May 16, 2017: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/28514983/adverse-effects-of-consuming-high-fat-sugar-diets-on-cognition-implications-for-understanding-obesity
#6
Martin R Yeomans
There is increasing evidence for important roles of key cognitive processes, including attention, memory and learning, in the short-term decision making about eating. There is parallel evidence that people who are overweight or obese tend to perform worse on a variety of cognitive tasks. In this review, the evidence for these two ideas is summarised and then the idea that overconsumption of Western-style high-fat (HF)-high-sugar diets may underlie the association between obesity and poorer cognitive performance is explored...
May 18, 2017: Proceedings of the Nutrition Society
https://www.readbyqxmd.com/read/28507895/diverging-volumetric-trajectories-following-pediatric-traumatic-brain-injury
#7
Emily L Dennis, Joshua Faskowitz, Faisal Rashid, Talin Babikian, Richard Mink, Christopher Babbitt, Jeffrey Johnson, Christopher C Giza, Neda Jahanshad, Paul M Thompson, Robert F Asarnow
Traumatic brain injury (TBI) is a significant public health concern, and can be especially disruptive in children, derailing on-going neuronal maturation in periods critical for cognitive development. There is considerable heterogeneity in post-injury outcomes, only partially explained by injury severity. Understanding the time course of recovery, and what factors may delay or promote recovery, will aid clinicians in decision-making and provide avenues for future mechanism-based therapeutics. We examined regional changes in brain volume in a pediatric/adolescent moderate-severe TBI (msTBI) cohort, assessed at two time points...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28498866/cognitive-adaptation-in-asexual-and-sexual-wasps-living-in-contrasted-environments
#8
Lucie Froissart, Martin Giurfa, Sandrine Sauzet, Emmanuel Desouhant
Differences in learning and memory dynamics between populations are suspected to result from differences in ecological constraints such as resource distribution. The two reproductive modes (strains) of the parasitoid wasp Venturia canescens share the same geographical areas but live in contrasting habitats: arrhenotokous wasps live in the wild (generally orchards), whereas thelytokous ones live mostly in stored-products buildings (e.g. granaries). This species thus represents a relevant biological model for understanding the relationship between the ecological constraints faced by a species and its memory and learning ability...
2017: PloS One
https://www.readbyqxmd.com/read/28497797/suppression-of-cognitive-function-in-hyperthermia-from-the-viewpoint-of-executive-and-inhibitive-cognitive-processing
#9
Manabu Shibasaki, Mari Namba, Misaki Oshiro, Ryusuke Kakigi, Hiroki Nakata
Climate change has had a widespread impact on humans and natural systems. Heat stroke is a life-threatening condition in severe environments. The execution or inhibition of decision making is critical for survival in a hot environment. We hypothesized that, even with mild heat stress, not only executive processing, but also inhibitory processing may be impaired, and investigated the effectiveness of body cooling approaches on these processes using the Go/No-go task with electroencephalographic event-related potentials...
March 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28495469/clock-copying-predicts-mortality-in-adult-protective-services-clients
#10
Abigail E Talley, Jason E Schillerstrom, Donald R Royall
OBJECTIVE: The objective of this study was to determine if a clock copying task predicts 18-month mortality in an Adult Protective Services (APS) sample referred for a decision-making capacity assessment. METHODS: The authors performed a retrospective medical record review of clients (N = 233) referred by APS for a decision-making capacity assessment during a 3-year time period. Information extracted included demographic data and neuropsychological performance on a battery sensitive to executive function, visuospatial ability, depression, memory, and general cognition...
April 6, 2017: American Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28491495/dorsolateral-prefrontal-cortex-contributes-to-the-impaired-behavioral-adaptation-in-alcohol-dependence
#11
Sinem Balta Beylergil, Anne Beck, Lorenz Deserno, Robert C Lorenz, Michael A Rapp, Florian Schlagenhauf, Andreas Heinz, Klaus Obermayer
Substance-dependent individuals often lack the ability to adjust decisions flexibly in response to the changes in reward contingencies. Prediction errors (PEs) are thought to mediate flexible decision-making by updating the reward values associated with available actions. In this study, we explored whether the neurobiological correlates of PEs are altered in alcohol dependence. Behavioral, and functional magnetic resonance imaging (fMRI) data were simultaneously acquired from 34 abstinent alcohol-dependent patients (ADP) and 26 healthy controls (HC) during a probabilistic reward-guided decision-making task with dynamically changing reinforcement contingencies...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28487465/geriatric-assessment-predicts-survival-and-competing-mortality-in-elderly-patients-with-early-colorectal-cancer-can-it-help-in-adjuvant-therapy-decision-making
#12
Maite Antonio, Juana Saldaña, Alberto Carmona-Bayonas, Valentín Navarro, Cristian Tebé, Marga Nadal, Francesc Formiga, Ramon Salazar, Josep Maria Borràs
BACKGROUND: The challenge when selecting elderly patients with colorectal cancer (CRC) for adjuvant therapy is to estimate the likelihood that death from other causes will preclude cancer events from occurring. The aim of this paper is to evaluate whether comprehensive geriatric assessment (CGA) can predict survival and cancer-specific mortality in elderly CRC patients candidates for adjuvant therapy. MATERIAL AND METHODS: One hundred ninety-five consecutive patients aged ≥75 with high-risk stage II and stage III CRC were prospectively included from May 2008 to May 2015...
May 9, 2017: Oncologist
https://www.readbyqxmd.com/read/28479217/physiological-and-psychological-effects-of-testosterone-during-severe-energy-deficit-and-recovery-a-study-protocol-for-a-randomized-placebo-controlled-trial-for-optimizing-performance-for-soldiers-ops
#13
Stefan M Pasiakos, Claire E Berryman, J Philip Karl, Harris R Lieberman, Jeb S Orr, Lee M Margolis, John A Caldwell, Andrew J Young, Monty A Montano, William J Evans, Oshin Vartanian, Owen T Carmichael, Kishore M Gadde, Melissa Harris, Jennifer C Rood
BACKGROUND: The physiological consequences of severe energy deficit include hypogonadism and the loss of fat-free mass. Prolonged energy deficit also impacts physical performance, mood, attentiveness, and decision-making capabilities. This study will determine whether maintaining a eugonadal state during severe, sustained energy deficit attenuates physiological decrements and maintains mental performance. This study will also assess the effects of normalizing testosterone levels during severe energy deficit and recovery on gut health and appetite regulation...
May 4, 2017: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/28471736/cognitive-motor-dual-task-ability-of-athletes-with-and-without-intellectual-impairment
#14
Debbie Van Biesen, Lore Jacobs, Katina McCulloch, Luc Janssens, Yves C Vanlandewijck
Cognition is important in many sports, for example, making split-second-decisions under pressure, or memorising complex movement sequences. The dual-task (DT) paradigm is an ecologically valid approach for the assessment of cognitive function in conjunction with motor demands. This study aimed to determine the impact of impaired intelligence on DT performance. The motor task required balancing on one leg on a beam, and the cognitive task was a multiple-object-tracking (MOT) task assessing dynamic visual-search capacity...
May 4, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28466359/dysfunctions-in-striatal-microstructure-can-enhance-perceptual-decision-making-through-deficits-in-predictive-coding
#15
Christian Beste, Moritz Mückschel, Raymond Rosales, Aloysius Domingo, Lillian Lee, Arlene Ng, Christine Klein, Alexander Münchau
An important brain function is to predict upcoming events on the basis of extracted regularities of previous inputs. These predictive coding processes can disturb performance in concurrent perceptual decision-making and are known to depend on fronto-striatal circuits. However, it is unknown whether, and if so, to what extent striatal microstructural properties modulate these processes. We addressed this question in a human disease model of striosomal dysfunction, i.e. X-linked dystonia-parkinsonism (XDP), using high-density EEG recordings and source localization...
May 2, 2017: Brain Structure & Function
https://www.readbyqxmd.com/read/28449363/health-literacy-interventions-for-immigrant-populations-a-systematic-review
#16
REVIEW
M Fernández-Gutiérrez, P Bas-Sarmiento, M J Albar-Marín, O Paloma-Castro, J M Romero-Sánchez
BACKGROUND: Health literacy is considered a social health determinant that influences improvement in health, patient empowerment and reduction in inequalities. There is a lack of health literacy interventions for vulnerable social groups (i.e. immigrants), and nurses have shown little familiarity with the concept. AIM: This study aimed to identify and analyse whether interventions directed at immigrant populations improve the functional (basic reading, writing and arithmetic skills), interactive (social and cognitive skills) and critical (advanced cognitive and social skills in critically analyzing information and making informed decisions) dimensions of health literacy, taking into account the role played by nursing in these interventions...
April 27, 2017: International Nursing Review
https://www.readbyqxmd.com/read/28448453/working-memory-in-the-prefrontal-cortex
#17
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/28444949/voxel-based-morphometry-meta-analysis-of-gray-and-white-matter-finds-significant-areas-of-differences-in-bipolar-patients-from-healthy-controls
#18
REVIEW
Rossana Ganzola, Simon Duchesne
OBJECTIVE: We present a retrospective meta-analysis of voxel-based morphometry (VBM) of gray (GM) and white matter (WM) differences between patients with bipolar disorder (BD) and behaviorally healthy controls. METHODS: We used the activation likelihood estimation and Sleuth software for our meta-analysis, considering P-value maps at the cluster level inference of .05 with uncorrected P<.001. Results were visualized with the software MANGO. RESULTS: We included twenty-five articles in the analysis, and separated the comparisons where BD patients had lower GM or WM concentrations than controls (573 subjects, 21 experiments, and 117 locations/180 subjects, five experiments, and 15 locations, respectively) and the comparisons where BD patients had greater GM concentrations than controls (217 subjects, nine experiments, and 49 locations)...
April 26, 2017: Bipolar Disorders
https://www.readbyqxmd.com/read/28440095/what-does-the-literature-say-about-using-robots-on-children-with-disabilities
#19
Antonio Miguel Cruz, Adriana María Ríos Rincón, William Ricardo Rodríguez Dueñas, Daniel Alejandro Quiroga Torres, Andrés Felipe Bohórquez-Heredia
PURPOSE: The purpose of this study is to examine the extent and type of robots used for the rehabilitation and education of children and young people with CP and ASD and the associated outcomes. METHODS: The scholarly literature was systematically searched and analyzed. Articles were included if they reported the results of robots used or intended to be used for the rehabilitation and education of children and young people with CP and ASD during play and educative and social interaction activities...
July 2017: Disability and Rehabilitation. Assistive Technology
https://www.readbyqxmd.com/read/28426360/pharmaceutical-cognitive-enhancement-in-greek-university-students-differences-between-users-and-non-users-in-social-cognitive-variables-burnout-and-engagement
#20
Lambros Lazuras, Antonia Ypsilanti, Efthymios Lamprou, Christos Kontogiorgis
Pharmaceutical cognitive enhancement (PCE) represents the non-medical use of prescribed medication for the improvement of cognitive functioning and academic performance. Although there are some studies about PCE prevalence, it is less clear how users and non-users of PCE substances differ with respect to their positive and negative student experiences (e.g. academic burnout and engagement with studies) and in social cognitive variables that relate to decision-making and self-regulation of PCE use. The present study assessed whether students with different experiences of PCE substance use displayed differences in academic burnout, study engagement, and social cognitive variables relevant to PCE use...
June 7, 2017: Substance Use & Misuse
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