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https://www.readbyqxmd.com/read/28236171/reward-based-contextual-learning-supported-by-anterior-cingulate-cortex
#1
Akina Umemoto, Azadeh HajiHosseini, Michael E Yates, Clay B Holroyd
The anterior cingulate cortex (ACC) is commonly associated with cognitive control and decision making, but its specific function is highly debated. To explore a recent theory that the ACC learns the reward values of task contexts (Holroyd & McClure in Psychological Review, 122, 54-83, 2015; Holroyd & Yeung in Trends in Cognitive Sciences, 16, 122-128, 2012), we recorded the event-related brain potentials (ERPs) from participants as they played a novel gambling task. The participants were first required to select from among three games in one "virtual casino," and subsequently they were required to select from among three different games in a different virtual casino; unbeknownst to them, the payoffs for the games were higher in one casino than in the other...
February 24, 2017: Cognitive, Affective & Behavioral Neuroscience
https://www.readbyqxmd.com/read/28235970/gamblingless-for-life-study-protocol-a-pragmatic-randomised-trial-of-an-online-cognitive-behavioural-programme-for-disordered-gambling
#2
S S Merkouris, S N Rodda, D Austin, D I Lubman, P Harvey, M Battersby, J Cunningham, T Lavis, D Smith, N A Dowling
INTRODUCTION: The prevalence of disordered gambling worldwide has been estimated at 2.3%. Only a small minority of disordered gamblers seek specialist face-to-face treatment, and so a need for alternative treatment delivery models that capitalise on advances in communication technology, and use self-directed activity that can complement existing services has been identified. As such, the primary aim of this study is to evaluate an online self-directed cognitive-behavioural programme for disordered gambling (GamblingLess: For Life)...
February 23, 2017: BMJ Open
https://www.readbyqxmd.com/read/28233375/reward-dependence-and-harm-avoidance-among-patients-with-binge-purge-type-eating-disorders
#3
Sigal Gat-Lazer, Ronny Geva, Eitan Gur, Daniel Stein
INTRODUCTION: The Cloninger's Psychobiological Model of Temperament and Character includes temperamental dimensions such as reward dependence (RD) and harm avoidance (HA). Studies of RD differentiate between sensitivity to reward (SR) versus to punishment (SP). We investigated the interrelationship between HA and RD in acutely ill patients with binge/purge (B/P) type eating disorders (EDs) and following symptomatic stabilization. METHODS: Fifty patients with B/P EDs were assessed at admission to inpatient treatment, 36 of whom were reassessed at discharge...
February 23, 2017: European Eating Disorders Review: the Journal of the Eating Disorders Association
https://www.readbyqxmd.com/read/28233020/effect-of-single-dose-dexamethasone-on-acute-phase-response-following-zoledronic-acid-a-randomized-controlled-trial
#4
E O Billington, A Horne, G D Gamble, K Maslowski, M House, I R Reid
: Zoledronic acid provokes an inflammatory reaction, or acute phase response, in some individuals. We examined whether treatment with dexamethasone could prevent this response. A single dose of dexamethasone 4 mg, given at the time of zoledronic acid infusion, did not influence the incidence or severity of the acute phase response. INTRODUCTION: The potent bisphosphonate zoledronic acid (ZOL) is used to treat osteoporosis, Paget's disease, and hypercalcemia of malignancy...
February 23, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28230266/who-is-a-distracted-driver-associations-between-mobile-phone-use-while-driving-domain-specific-risk-taking-and-personality
#5
Madison Sween, Andrea Ceschi, Francesco Tommasi, Riccardo Sartori, Joshua Weller
Mobile phone use while driving (MPUWD) is an increasingly common form of distracted driving. Given its widespread prevalence, it is important for researchers to identify factors that may predict who is more likely to engage in this risky behavior. The current study investigates associations between MPUWD risk behaviors, domain-specific risk perceptions, and broad personality dimensions. An Italian community sample (n = 804) completed a survey regarding MPUWD risk perceptions and engagement in MPUWD, in addition to the HEXACO-PI-R, a broad six-factor personality inventory (honesty-humility, emotionality, extraversion, agreeableness, conscientiousness, openness to experience), and the DOSPERT, a six-factor domain-specific self-report risk-taking measure (health/safety, recreational, social, ethical, gambling, and investment)...
February 23, 2017: Risk Analysis: An Official Publication of the Society for Risk Analysis
https://www.readbyqxmd.com/read/28229895/impulse-control-disorders-and-levodopa-induced-dyskinesias-in-parkinson-s-disease-an-update
#6
REVIEW
Valerie Voon, T Celeste Napier, Michael J Frank, Veronique Sgambato-Faure, Anthony A Grace, Maria Rodriguez-Oroz, Jose Obeso, Erwan Bezard, Pierre-Olivier Fernagut
Dopaminergic medications used in the treatment of patients with Parkinson's disease are associated with motor and non-motor behavioural side-effects, such as dyskinesias and impulse control disorders also known as behavioural addictions. Levodopa-induced dyskinesias occur in up to 80% of patients with Parkinson's after a few years of chronic treatment. Impulse control disorders, including gambling disorder, binge eating disorder, compulsive sexual behaviour, and compulsive shopping occur in about 17% of patients with Parkinson's disease on dopamine agonists...
March 2017: Lancet Neurology
https://www.readbyqxmd.com/read/28227248/the-precuneus-may-encode-irrationality-in-human-gambling
#7
P Sacre, M S D Kerr, S Subramanian, K Kahn, J Gonzalez-Martinez, M A Johnson, S V Sarma, J T Gale, P Sacre, M S D Kerr, S Subramanian, K Kahn, J Gonzalez-Martinez, M A Johnson, S V Sarma, J T Gale, S Subramanian, M S D Kerr, M A Johnson, J T Gale, K Kahn, P Sacre, S V Sarma, J Gonzalez-Martinez
Humans often make irrational decisions, especially psychiatric patients who have dysfunctional cognitive and emotional circuitry. Understanding the neural basis of decision-making is therefore essential towards patient management, yet current studies suffer from several limitations. Functional magnetic resonance imaging (fMRI) studies in humans have dominated decision-making neuroscience, but have poor temporal resolution and the blood oxygenation level-dependent signal is only a proxy for neural activity. On the other hand, lesion studies in humans used to infer functionality in decision-making lack characterization of neural activity altogether...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28224962/-gambling-in-elderly-patients
#8
Morgane Guillou Landreat, Jean-Yves Le Reste, Catherine Théréné-Mouden, Julie Caillon, Jennyfer Cholet, Marie Grall Bronnec
Behavioural addictions concern behaviour which generate pleasure (shopping, gambling, sex, etc.). Pathological gambling is the most common behavioural addiction in elderly people. It can be severely harmful causing psychological, financial and family problems and increasing the risk of suicide. Gambling addiction is underestimated in the elderly. Psychological, social and family support is important whatever the age, with treatment aiming to improve the person's quality of life, help them regain control of their gambling or stop altogether...
January 2017: Soins. Gérontologie
https://www.readbyqxmd.com/read/28224457/elevated-outcome-anticipation-and-outcome-evaluation-erps-associated-with-a-greater-preference-for-larger-but-delayed-rewards
#9
Narun Pornpattananangkul, Ajay Nadig, Storm Heidinger, Keegan Walden, Robin Nusslock
Although waiting for a reward reduces or discounts its value, some people have a stronger tendency to wait for larger rewards and forgo smaller-but-immediate rewards. This ability to delay gratification is captured by individual differences in so-called intertemporal choices in which individuals are asked to choose between larger-but-delayed versus smaller-but-immediate rewards. The current study used event-related potentials (ERPs) to examine whether enhancement in two neurocognitive processes, outcome anticipation and outcome evaluation, modulate individual variability in intertemporal responses...
February 21, 2017: Cognitive, Affective & Behavioral Neuroscience
https://www.readbyqxmd.com/read/28224296/eq-5d-5l-and-sf-6d-utility-measures-in-symptomatic-benign-thyroid-nodules-acceptability-and-psychometric-evaluation
#10
Carlos K H Wong, Brian H H Lang, Hill M S Yu, Cindy L K Lam
PURPOSE: The aim of this study was to examine the acceptability, validity, and reliability of the EuroQoL Five-Dimension Five-Level (EQ-5D-5L) and Short-Form Six-Dimension (SF-6D) health utility measures in patients with symptomatic benign thyroid nodules. METHODS: Data from a randomized controlled trial (ClinicalTrials.gov identifier: NCT02398721) of 294 patients with symptomatic benign thyroid nodules were utilized for this psychometric evaluation of health-related quality of life (HR-QOL) measurement...
February 21, 2017: Patient
https://www.readbyqxmd.com/read/28223961/a-spanish-validation-of-the-canadian-adolescent-gambling-inventory-cagi
#11
Susana Jiménez-Murcia, Roser Granero, Randy Stinchfield, Joël Tremblay, Amparo Del Pino-Gutiérrez, Laura Moragas, Lamprini G Savvidou, Fernando Fernández-Aranda, Neus Aymamí, Mónica Gómez-Peña, Salomé Tárrega, Katarina Gunnard, Virginia Martín-Romera, Trevor Steward, Gemma Mestre-Bach, José M Menchón
Aims: Large-scale epidemiological studies show a significant prevalence of gambling disorder (GD) during adolescence and emerging adulthood, and highlight the need to identify gambling-related behaviors at early ages. However, there are only a handful of screening instruments for this population and many studies measuring youth gambling problems use adult instruments that may not be developmentally appropriate. The aim of this study was to validate a Spanish version of the Canadian Adolescent Gambling Inventory (CAGI) among late adolescent and young adults and to explore its psychometric properties...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28222156/toothbrush-abrasivity-in-a-long-term-simulation-on-human-dentin-depends-on-brushing-mode-and-bristle-arrangement
#12
Mozhgan Bizhang, Ilka Schmidt, Yong-Hee Patricia Chun, Wolfgang H Arnold, Stefan Zimmer
OBJECTIVE: The aim of this study was to evaluate the susceptibility of dentin to brushing abrasion using four different toothbrushes (rotating-oscillating, sonic and two types of manual toothbrushes) with the same brushing forces. METHODS: Dentin samples (n = 72) were selected from 72 impacted third molars. Half of the surface of dentin samples was covered with an adhesive tape, creating a protected and a freely exposed area in the same specimen. Brushing was performed with either a: sonic (Sonicare PowerUp, Philips GmbH, Hamburg, Germany), b: oscillating-rotating (Oral B Vitality Precisions Clean, Procter & Gamble, Schwalbach am Taunus, Germany) or two different manual toothbrushes c: flat trim brush head toothbrush (Dr...
2017: PloS One
https://www.readbyqxmd.com/read/28219609/neuroscience-in-gambling-policy-and-treatment-an-interdisciplinary-perspective
#13
REVIEW
Murat Yücel, Adrian Carter, Amy R Allen, Bernard Balleine, Luke Clark, Nicki A Dowling, Sally M Gainsbury, Anna E Goudriaan, Jon Grant, Alan Hayes, David Hodgins, Ruth van Holst, Ralph Lattimore, Charles Livingstone, Valentina Lorenzetti, Dan Lubman, Carsten Murawski, Linden Parkes, Nancy Petry, Robin Room, Bruce Singh, Anna Thomas, Phil Townshend, George Youssef, Wayne Hall
Neuroscientific explanations of gambling disorder can help people make sense of their experiences and guide the development of psychosocial interventions. However, the societal perceptions and implications of these explanations are not always clear or helpful. Two workshops in 2013 and 2014 brought together multidisciplinary researchers aiming to improve the clinical and policy-related effects of neuroscience research on gambling. The workshops revealed that neuroscience can be used to improve identification of the dangers of products used in gambling...
February 14, 2017: Lancet Psychiatry
https://www.readbyqxmd.com/read/28218643/diffusion-assessment-of-cortical-changes-induced-by-traumatic-spinal-cord-injury
#14
Peng Sun, Rory K J Murphy, Paul Gamble, Ajit George, Sheng-Kwei Song, Wilson Z Ray
Promising treatments are being developed to promote functional recovery after spinal cord injury (SCI). Magnetic resonance imaging, specifically Diffusion Tensor Imaging (DTI) has been shown to non-invasively measure both axonal and myelin integrity following traumatic brain and SCI. A novel data-driven model-selection algorithm known as Diffusion Basis Spectrum Imaging (DBSI) has been proposed to more accurately delineate white matter injury. The objective of this study was to investigate whether DTI/DBSI changes that extend to level of the cerebral peduncle and internal capsule following a SCI could be correlated with clinical function...
February 17, 2017: Brain Sciences
https://www.readbyqxmd.com/read/28216121/pigeons-unlike-humans-do-not-prefer-near-hits-in-a-slot-machine-like-task
#15
Inês Fortes, Jacob P Case, Thomas R Zentall
Slot machines are among the most popular forms of commercial gambling, and the high frequency of losses that come close to winning - near hits - in this game appears to contribute to its popularity. In the present experiment we tested if pigeons, similarly to humans, prefer an alternative that provides near-hit outcomes in a slot-machine-like task. The pigeons received series of three stimuli, one every two seconds: if the three stimuli matched, food was delivered (a win); if they did not match, food was not delivered (a loss)...
February 16, 2017: Behavioural Processes
https://www.readbyqxmd.com/read/28214771/future-oriented-mental-time-travel-in-individuals-with-disordered-gambling
#16
Xavier Noël, Mélanie Saeremans, Charles Kornreich, Nematollah Jaafari, Arnaud D'Argembeau
This study investigated the ability of individuals with disordered gambling to imagine future events. Problem gamblers (n=35) and control participants (n=35) were asked to imagine positive and negative future events for three temporal distances (one week, one year, 5-10years). Then, a variety of phenomenological aspects of their future thoughts (e.g., sensory and contextual details, autonoetic consciousness) were rated. Compared to control subjects, problem gamblers generated fewer positive and negative events across all temporal distances, an impairment that was correlated to verbal fluency scores...
February 16, 2017: Consciousness and Cognition
https://www.readbyqxmd.com/read/28214431/simulation-in-undergraduate-paediatric-nursing-curriculum-evaluation-of-a-complex-ward-for-a-day-education-program
#17
Andree S Gamble
Simulation in health education has been shown to increase confidence, psychomotor and professional skills, and thus positively impact on student preparedness for clinical placement. It is recognised as a valuable tool to expose and engage students in realistic patient care encounters without the potential to cause patient harm. Although inherent challenges exist in the development and implementation of simulation, variability in clinical placement time, availability and quality dictates the need to provide students with learning opportunities they may otherwise not experience...
February 4, 2017: Nurse Education in Practice
https://www.readbyqxmd.com/read/28213964/when-sensing-is-gambling-an-experimental-system-reveals-how-plasticity-can-generate-tunable-bet-hedging-strategies
#18
Colin S Maxwell, Paul M Magwene
Genotypes can persist in unpredictable environments by 'hedging their bets' and producing diverse phenotypes. Theoretical studies have shown that the phenotypic variability needed for a bet-hedging strategy can be generated by factors either inside or outside an organism. However, sensing the environment and bet hedging are frequently treated as distinct evolutionary strategies. Furthermore, nearly all empirical studies of the molecular underpinnings of bet-hedging strategies to date have focused on internal sources of variability...
February 18, 2017: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/28213598/informing-efficient-randomised-controlled-trials-exploration-of-challenges-in-developing-progression-criteria-for-internal-pilot-studies
#19
Kerry N L Avery, Paula R Williamson, Carrol Gamble, Elaine O'Connell Francischetto, Chris Metcalfe, Peter Davidson, Hywel Williams, Jane M Blazeby
OBJECTIVES: Designing studies with an internal pilot phase may optimise the use of pilot work to inform more efficient randomised controlled trials (RCTs). Careful selection of preagreed decision or 'progression' criteria at the juncture between the internal pilot and main trial phases provides a valuable opportunity to evaluate the likely success of the main trial and optimise its design or, if necessary, to make the decision not to proceed with the main trial. Guidance on the appropriate selection and application of progression criteria is, however, lacking...
February 17, 2017: BMJ Open
https://www.readbyqxmd.com/read/28213036/meat-sources-of-infection-for-outbreaks-of-human-trichinellosis
#20
REVIEW
Ali Rostami, H Ray Gamble, Jean Dupouy-Camet, Hooshang Khazan, Fabrizio Bruschi
Trichinellosis is one of the most important foodborne zoonotic diseases, with worldwide distribution. While human risk for trichinellosis has historically been linked to pork, modern pork production systems and slaughter inspection programs have reduced or eliminated pork as a source for trichinellosis in many countries. While pork may no longer pose a significant risk for trichinellosis, many other animal species may be hosts for Trichinella species nematodes and when human consume meat from these animal species, there may be risk for acquiring trichinellosis...
June 2017: Food Microbiology
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