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Cognitive function decision making

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https://www.readbyqxmd.com/read/28930544/neural-signatures-of-attention-insights-from-decoding-population-activity-patterns
#1
Panagiotis Sapountzis, Georgia G Gregoriou
Understanding brain function and the computations that individual neurons and neuronal ensembles carry out during cognitive functions is one of the biggest challenges in neuroscientific research. To this end, invasive electrophysiological studies have provided important insights by recording the activity of single neurons in behaving animals. To average out noise, responses are typically averaged across repetitions and across neurons that are usually recorded on different days. However, the brain makes decisions on short time scales based on limited exposure to sensory stimulation by interpreting responses of populations of neurons on a moment to moment basis...
January 1, 2018: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/28928479/decline-of-long-range-temporal-correlations-in-the-human-brain-during-sustained-wakefulness
#2
Christian Meisel, Kimberlyn Bailey, Peter Achermann, Dietmar Plenz
Sleep is crucial for daytime functioning, cognitive performance and general well-being. These aspects of daily life are known to be impaired after extended wake, yet, the underlying neuronal correlates have been difficult to identify. Accumulating evidence suggests that normal functioning of the brain is characterized by long-range temporal correlations (LRTCs) in cortex, which are supportive for decision-making and working memory tasks. Here we assess LRTCs in resting state human EEG data during a 40-hour sleep deprivation experiment by evaluating the decay in autocorrelation and the scaling exponent of the detrended fluctuation analysis from EEG amplitude fluctuations...
September 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28924006/the-neural-basis-of-aversive-pavlovian-guidance-during-planning
#3
Níall Lally, Quentin J M Huys, Neir Eshel, Paul Faulkner, Peter Dayan, Jonathan P Roiser
Important real-world decisions are often arduous as they frequently involve sequences of choices, with initial selections affecting future options. Evaluating every possible combination of choices is computationally intractable, particularly for longer multi-step decisions. Therefore, humans frequently employ heuristics to reduce the complexity of decisions. We recently used a goal-directed planning task to demonstrate the profound behavioral influence and ubiquity of one such shortcut, namely aversive pruning, a reflexive Pavlovian process that involves neglecting parts of the decision space residing beyond salient negative outcomes...
September 18, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28915817/cultural-adaptation-of-a-pediatric-functional-assessment-for-rehabilitation-outcomes-research
#4
Kristen E Arestad, David MacPhee, Chun Y Lim, Mary A Khetani
BACKGROUND: Significant racial and ethnic health care disparities experienced by Hispanic children with special health care needs (CSHCN) create barriers to enacting culturally competent rehabilitation services. One way to minimize the impact of disparities in rehabilitation is to equip practitioners with culturally relevant functional assessments to accurately determine service needs. Current approaches to culturally adapting assessments have three major limitations: use of inconsistent translation processes; current processes assess for some, but not all, elements of cultural equivalence; and limited evidence to guide decision making about whether to undertake cultural adaptation with and without language translation...
September 15, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28915513/the-influence-of-executive-functions-on-phonemic-processing-in-children-who-do-and-do-not-stutter
#5
Jayanthi Sasisekaran, Shriya Basu
Purpose: The aim of the present study was to investigate dual-task performance in children who stutter (CWS) and those who do not to investigate if the groups differed in the ability to attend and allocate cognitive resources effectively during task performance. Method: Participants were 24 children (12 CWS) in both groups matched for age and sex. For the primary task, participants performed a phoneme monitoring in a picture-written word interference task. For the secondary task, participants made pitch judgments on tones presented at varying (short, long) stimulus onset asynchrony (SOA) from the onset of the picture...
September 15, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
https://www.readbyqxmd.com/read/28913979/physical-pain-increases-interpersonal-trust-in-females
#6
C Wang, J Gao, Y Ma, C Zhu, X-W Dong
BACKGROUND: People behave and interact with others differently when experiencing physical pain. Pain has dramatic effects on one's emotional responses, cognitive functions and social interaction. However, little has been known about whether and how physical pain influences interpersonal trust in social interaction. In the present study, we examined the influence of physical pain on trusting behaviour. METHODS: A total of 112 healthy participants were recruited and assigned to physical pain condition (induced by Capsaicin) and control condition (with hand cream), respectively...
September 14, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/28911135/is-it-me-or-my-hormones-neuroendocrine-activation-profiles-to-visual-food-stimuli-across-the-menstrual-cycle
#7
Yardena Arnoni-Bauer, Atira Bick, Noa Raz, Tal Imbar, Shoshana Amos, Orly Agmon, Limor Marko, Netta Levin, Ram Weiss
Context: Homeostatic energy balance is controlled via the hypothalamus, whereas regions controlling reward and cognitive decision-making are critical for hedonic eating. Eating varies across the menstrual cycle peaking at the midluteal phase. Objective: To test responses of females with regular cycles during midfollicular and midluteal phase and of users of monophasic oral contraception pills (OCPs) to visual food cues. Design: Participants performed a functional magnetic resonance imaging while exposed to visual food cues in four time points: fasting and fed conditions in midfollicular and midluteal phases...
September 1, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28900390/genetically-driven-enhancement-of-dopaminergic-transmission-affects-moral-acceptability-in-females-but-not-in-males-a-pilot-study
#8
Silvia Pellegrini, Sara Palumbo, Caterina Iofrida, Erika Melissari, Giuseppina Rota, Veronica Mariotti, Teresa Anastasio, Andrea Manfrinati, Rino Rumiati, Lorella Lotto, Michela Sarlo, Pietro Pietrini
Moral behavior has been a key topic of debate for philosophy and psychology for a long time. In recent years, thanks to the development of novel methodologies in cognitive sciences, the question of how we make moral choices has expanded to the study of neurobiological correlates that subtend the mental processes involved in moral behavior. For instance, in vivo brain imaging studies have shown that distinct patterns of brain neural activity, associated with emotional response and cognitive processes, are involved in moral judgment...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28893336/problematic-internet-use-in-gamblers-impact-on-clinical-and-cognitive-measures
#9
Samuel R Chamberlain, Sarah A Redden, Eric Leppink, Jon E Grant
OBJECTIVE: Gambling is a commonplace phenomenon, existing along a continuum from occasional gambling to functionally impairing gambling disorder. The internet may act as a conduit for some gambling behaviors. The impact of problematic internet use on clinical and cognitive features relevant to gambling has received little research attention. METHODS: A total of 206 adults aged 18-30 years who gamble at least five times per year were recruited from the general community and undertook detailed clinical and cognitive assessments...
September 12, 2017: CNS Spectrums
https://www.readbyqxmd.com/read/28889923/social-risky-decision-making-reveals-gender-differences-in-the-tpj-a-hyperscanning-study-using-functional-near-infrared-spectroscopy
#10
Mingming Zhang, Tao Liu, Matthew Pelowski, Huibin Jia, Dongchuan Yu
Previous neuroscience studies have investigated neural correlates of risky decision-making in a single-brain frame during pseudo social (predominantly non face-to-face) contexts. To fully understand the risky decision-making behavior in more natural social interactions, the present study employed a functional near-infrared spectroscopy (fNIRS) hyperscanning technique to simultaneously measure pairs of participants' fronto-temporal activations in a face-to-face gambling card-game. The intra-brain results revealed that both those who identified as males and as females showed higher activations in their mPFC and in the inferior parts of the frontopolar area, as well as in the tempo-parietal junction (TPJ) in cases involving higher versus lower risk...
September 7, 2017: Brain and Cognition
https://www.readbyqxmd.com/read/28883776/receptive-vocabulary-and-cognition-of-elderly-people-in-institutional-care
#11
Amela Ibrahimagic, Lejla Junuzovic Zunic, Omer C Ibrahimagic, Dzevdet Smajlovic, Mirsada Rasidovic
INTRODUCTION: Basic cognitive functions such as: alertness, working memory, long term memory and perception, as well as higher levels of cognitive functions like: speech and language, decision-making and executive functions are affected by aging processes. Relations between the receptive vocabulary and cognitive functioning, and the manifestation of differences between populations of elderly people based on the primary disease is in the focus of this study. AIM: To examine receptive vocabulary and cognition of elderly people with: verified stroke, dementia, verified stroke and dementia, and without the manifested brain disease...
June 2017: Materia Socio-medica
https://www.readbyqxmd.com/read/28882828/systematic-review-and-meta-analysis-of-factors-that-help-or-hinder-treatment-decision-making-capacity-in-psychosis
#12
REVIEW
Amanda Larkin, Paul Hutton
BackgroundThe evidence on factors that may influence treatment decisional capacity ('capacity') in psychosis has yet to be comprehensively synthesised, which limits the development of effective strategies to improve or support it.AimsTo determine the direction, magnitude and reliability of the relationship between capacity in psychosis and a range of clinical, demographic and treatment-related factors, thus providing a thorough synthesis of current knowledge.MethodWe conducted a systematic review, meta-analytical and narrative synthesis of factors that help or hinder treatment decision-making capacity in psychosis, assessing the direction, magnitude, significance and reliability of reported associations...
September 7, 2017: British Journal of Psychiatry: the Journal of Mental Science
https://www.readbyqxmd.com/read/28882633/probabilistic-inference-under-time-pressure-leads-to-a-cortical-to-subcortical-shift-in-decision-evidence-integration
#13
Hanna Oh-Descher, Jeffrey M Beck, Silvia Ferrari, Marc A Sommer, Tobias Egner
Real-life decision-making often involves combining multiple probabilistic sources of information under finite time and cognitive resources. To mitigate these pressures, people "satisfice", foregoing a full evaluation of all available evidence to focus on a subset of cues that allow for fast and "good-enough" decisions. Although this form of decision-making likely mediates many of our everyday choices, very little is known about the way in which the neural encoding of cue information changes when we satisfice under time pressure...
September 5, 2017: NeuroImage
https://www.readbyqxmd.com/read/28870585/medical-decision-making-capacity-and-its-cognitive-predictors-in-progressive-ms-preliminary-evidence
#14
Adam Gerstenecker, Kathleen Lowry, Terina Myers, Khurram Bashir, Kristen L Triebel, Roy C Martin, Daniel C Marson
BACKGROUND: Medical decision-making capacity (MDC) refers to the ability to make informed decisions about treatment and declines in cognition are associated with declines in MDC across multiple disease entities. However, although it is well known that cognitive impairment is prevalent in multiple sclerosis (MS), little is known about MDC in the disease. METHODS: Data from 22 persons with progressive MS and 18 healthy controls were analyzed. All diagnoses were made by a board-certified neurologist with experience in MS...
September 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28868068/assessing-capacity-in-the-elderly-comparing-the-moca-with-a-novel-computerized-battery-of-executive-function
#15
Megan Brenkel, Kenneth Shulman, Elias Hazan, Nathan Herrmann, Adrian M Owen
BACKGROUND/AIMS: Clinicians are increasingly being asked to provide their opinion on the decision-making capacity of older adults, while validated and widely available tools are lacking. We sought to identify an online cognitive screening tool for assessing mental capacity through the measurement of executive function. METHODS: A mixed elderly sample of 45 individuals, aged 65 years and older, were screened with the Montreal Cognitive Assessment (MoCA) and the modified Cambridge Brain Sciences Battery...
May 2017: Dementia and Geriatric Cognitive Disorders Extra
https://www.readbyqxmd.com/read/28867340/bdnf-val-66-met-polymorphism-tunes-frontolimbic-circuitry-during-affective-contextual-learning
#16
Mbemba Jabbi, Brett Cropp, Tiffany Nash, Philip Kohn, J Shane Kippenhan, Joseph C Masdeu, Raghav Mattay, Bhaskar Kolachana, Karen F Berman
Adaptive learning impairments are common in cognitive and behavioral disorders, but the neurogenetic mechanisms supporting human affective learning are poorly understood. We designed a higher-order contextual learning task in which healthy participants genotyped for the Val(66)Met polymorphism of the brain derived neurotropic factor gene (BDNF) were required to choose the member of a picture pair most congruent with the emotion in a previously-viewed facial expression video in order to produce an advantageous monetary outcome...
August 31, 2017: NeuroImage
https://www.readbyqxmd.com/read/28867339/multimodal-neural-correlates-of-cognitive-control-in-the-human-connectome-project
#17
Dov B Lerman-Sinkoff, Jing Sui, Srinivas Rachakonda, Sridhar Kandala, Vince D Calhoun, Deanna M Barch
Cognitive control is a construct that refers to the set of functions that enable decision-making and task performance through the representation of task states, goals, and rules. The neural correlates of cognitive control have been studied in humans using a wide variety of neuroimaging modalities, including structural MRI, resting-state fMRI, and task-based fMRI. The results from each of these modalities independently have implicated the involvement of a number of brain regions in cognitive control, including dorsal prefrontal cortex, and frontal parietal and cingulo-opercular brain networks...
September 1, 2017: NeuroImage
https://www.readbyqxmd.com/read/28861338/increased-default-mode-variability-is-related-to-reduced-task-performance-and-is-evident-in-adults-with-adhd
#18
Athanasia M Mowinckel, Dag Alnæs, Mads L Pedersen, Sigurd Ziegler, Mats Fredriksen, Tobias Kaufmann, Edmund Sonuga-Barke, Tor Endestad, Lars T Westlye, Guido Biele
Insufficient suppression and connectivity of the default mode network (DMN) is a potential mediator of cognitive dysfunctions across various disorders, including attention deficit/hyperactivity disorder (ADHD). However, it remains unclear if alterations in sustained DMN suppression, variability and connectivity during prolonged cognitive engagement are implicated in adult ADHD pathophysiology, and to which degree methylphenidate (MPH) remediates any DMN abnormalities. This randomized, double-blinded, placebo-controlled, cross-over clinical trial of MPH (clinicaltrials...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28860463/decision-making-in-primary-onset-middle-age-type-2-diabetes-mellitus-a-bold-fmri-study
#19
Dan-Miao Sun, Ye Ma, Zong-Bo Sun, Lei Xie, Jin-Zhuang Huang, Wei-Song Chen, Shou-Xing Duan, Zhi-Rong Lin, Rui-Wei Guo, Hong-Bo Le, Wen-Can Xu, Shu-Hua Ma
Although type 2 diabetes mellitus (T2DM) is a well-recognized risk factor for dementia, the neural mechanisms that underlying cognitive impairment in T2DM remain unclear. We used functional magnetic resonance imaging (fMRI) during a computerized version of the Iowa Gambling Task to investigate the neural basis of decision making at the initial onset stage of T2DM. Eighteen newly diagnosed middle-aged T2DM patients, with no previous diabetic treatment history, and 18 matched controls were recruited. Results indicated that T2DM patients made more disadvantageous decisions than controls...
August 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28859864/impaired-decision-making-under-risky-conditions-in-the-acute-phase-of-graves-thyroitoxicosis
#20
Fang Dai, Lili Yuan, Juan Fang, Qiu Zhang, Kai Wang
The patients with Graves' thyroitoxicosis often complain that they have neuropsychiatric symptoms and impaired cognitive function. Decision making is important and complex process involving the interaction and integration of a series of cognitive components. In the 31 newly diagnosed patients with Graves' thyroitoxicosis and 30 healthy controls, we used the Hamilton Anxiety Rating Scale (HAMD), Hamilton Depression Rating Scale (HAMD) and The Game of Dice Task (GDT) to assess the emotion and decision making under risky conditions...
August 28, 2017: Neuroscience Letters
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