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Delay discounting

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https://www.readbyqxmd.com/read/28224457/elevated-outcome-anticipation-and-outcome-evaluation-erps-associated-with-a-greater-preference-for-larger-but-delayed-rewards
#1
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/28212944/acute-and-long-term-effects-of-adolescent-methylphenidate-on-decision-making-and-dopamine-receptor-mrna-expression-in-the-orbitofrontal-cortex
#2
Leslie R Amodeo, Eliza Jacobs-Brichford, Matthew S McMurray, Jamie D Roitman
Though commonly used as a treatment for ADHD, the psychostimulant methylphenidate (MPH) is also misused and abused in adolescence in both clinical and general populations. Although MPH acts via pathways activated by other drugs of abuse, the short- and long-term effects of MPH on reward processing in learning and decision-making are not clearly understood. We examined the effect of adolescent MPH treatment on a battery of reward-directed behaviors both in adolescence during its administration and in adulthood after its discontinuation...
February 14, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28206689/working-memory-ability-and-early-drug-use-progression-as-predictors-of-adolescent-substance-use-disorders
#3
Atika Khurana, Daniel Romer, Laura M Betancourt, Hallam Hurt
AIMS: To test a neurobehavioral model of adolescent substance use disorder (SUD) resulting from an imbalance between a hyperactive reward motivation system and a hypoactive executive control system. Specifically, we tested (1) if early weakness in working memory (WM) and associated imbalance indicators of acting-without-thinking (AWT) and delay discounting (DD) predict SUD in late adolescence, and (2) if early drug use progression mediates this relation. DESIGN: Five waves of longitudinal data collected annually from 2005-2010, with a final follow-up in 2012...
February 16, 2017: Addiction
https://www.readbyqxmd.com/read/28203636/i-want-to-media-multitask-and-i-want-to-do-it-now-individual-differences-in-media-multitasking-predict-delay-of-gratification-and-system-1-thinking
#4
Dan Schutten, Kirk A Stokes, Karen M Arnell
Media multitasking, the concurrent use of multiple media forms, has been shown to be related to greater self-reported impulsivity and less self-control. These measures are both hallmarks of the need for immediate gratification which has been associated with fast, intuitive 'system-1' decision making, as opposed to more deliberate and effortful 'system-2' decision making. In Study 1, we used the Cognitive Reflection Task (CRT) to examine whether individuals who engage heavily in media multitasking differ from those who are light media multitaskers in their degree of system-1 versus system-2 thinking...
2017: Cogn Res Princ Implic
https://www.readbyqxmd.com/read/28198658/effects-of-acute-and-chronic-caffeine-on-risk-taking-behavior-in-children-and-adolescents
#5
Jennifer L Temple, Amanda M Ziegler, Adam M Graczyk, Amanda Crandall
Consumption of caffeinated beverages is associated with increased risk-taking behavior. The purpose of this study was to determine if acute caffeine administration influences risk-taking behavior in a dose-dependent manner. Participants were pre- (ages 8-9) and post-pubertal (ages 15-17) children who visited the laboratory three times and consumed a beverage containing 0, 1, or 2 mg/kg of caffeine. Thirty minutes later, participants completed the balloon analogue risk task (BART), the Iowa gambling task (IGT), and a delay discounting task...
February 1, 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/28198452/undervaluing-delayed-rewards-explains-adolescents-impulsivity-in-inter-temporal-choice-an-erp-study
#6
Yunyun Huang, Ping Hu, Xueting Li
Adolescence has frequently been characterized as a period of choice impulsivity relative to adulthood. According to the control-integrated valuation model of inter-temporal choice, this choice impulsivity may be driven partly by an age-related difference in reward processing. We hypothesized that, compared to adults, adolescents would undervalue delayed rewards during reward processing and would thus be more impulsive in inter-temporal choice. To test this hypothesis at the behavioural and neural levels, we first measured the choice impulsivity of 18 adolescents and 19 adults using a delay discounting task (DDT)...
February 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28197805/economic-analysis-and-budget-impact-of-tenofovir-and-entecavir-in-the-first-line-treatment-of-hepatitis-b-virus-in-italy
#7
M Ruggeri, M Basile, S Coretti, C Drago, A Cicchetti
BACKGROUND: Chronic hepatitis B is a common, progressive disease, particularly when viral replication is detected. Oral antivirals can suppress viral replication and prevent or delay the development of cirrhosis and liver-related complications. The treatments of chronic hepatitis B cannot totally cure the disease but can prevent its progression to hepatocellular carcinoma, decreasing the levels of both morbidity and mortality. To date, there are several therapies indicated by the international guidelines as first-line treatments for the management of hepatitis B; two of the most effective are those based on either tenofovir or entecavir...
February 14, 2017: Applied Health Economics and Health Policy
https://www.readbyqxmd.com/read/28196125/delaying-rewards-has-greater-effect-on-altruism-when-the-beneficiary-is-socially-distant
#8
Jerzy Osiński, Adam Karbowski
Based on the assumption that social distance and time are dimensions of psychological distance important for altruistic choices it was predicted that enhancement of altruism due to delaying rewards when choosing between a reward for oneself and for another person would be more pronounced the greater the social distance between the subject and another person. In order to test this hypothesis, social discounting using hypothetical monetary rewards and manipulation of social distance and reward delay was measured in a group of 161 college students...
2017: PloS One
https://www.readbyqxmd.com/read/28188866/does-a-future-oriented-temporal-perspective-relate-to-body-mass-index-eating-and-exercise-a-meta-analysis
#9
Allison M Sweeney, Ileana Culcea
OBJECTIVE: The present study aimed to quantify the magnitude of the association between future temporal perspective and Body Mass Index (BMI), diet, and exercise, respectively, and to clarify whether subjective future-focus scales or delay-discounting tasks are a more robust predictor of health behaviors. METHODS: A systematic search was conducted for studies that included a dispositional measure of future temporal perspective and a measure of BMI, eating, and/or exercise behavior...
February 8, 2017: Appetite
https://www.readbyqxmd.com/read/28174528/anxious-individuals-are-impulsive-decision-makers-in-the-delay-discounting-task-an-erp-study
#10
Lisheng Xia, Ruolei Gu, Dandan Zhang, Yuejia Luo
Impulsivity, which is linked to a wide range of psychiatric disorders, is often characterized by a preference for immediate but smaller rewards over delayed but larger rewards. However, debate exists on the relationship between anxiety and impulsivity. Here we use event-related potential (ERP) components as biomarkers in the temporal discounting task to examine the effect of anxiety on inter-temporal decision-making. Our behavioral results indicated that the high trait anxiety (HTA) group made significantly more immediate choices than the low trait anxiety (LTA) group...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28165261/altered-experiential-but-not-hypothetical-delay-discounting-in-schizophrenia
#11
William P Horan, Matthew W Johnson, Michael F Green
Delay discounting (DD) is a future-oriented decision-making process that refers to whether one is willing to forego a smaller, sooner reward for the sake of a larger, later reward. It can be assessed using hypothetical tasks, which involve choices between hypothetical rewards of varying amounts over delay periods of days to years, or experiential tasks, which involve receiving actual rewards in real time over delay periods of seconds to minutes. Initial studies in schizophrenia have only used hypothetical tasks and have been mixed in finding either elevated or normal levels of DD...
February 6, 2017: Journal of Abnormal Psychology
https://www.readbyqxmd.com/read/28154956/me-myself-and-money-ii-relative-deprivation-predicts-disordered-gambling-severity-via-delay-discounting-especially-among-gamblers-who-have-a-financially-focused-self-concept
#12
Nassim Tabri, N Will Shead, Michael J A Wohl
In the current research, we examined whether the known link between relative deprivation and disordered gambling (via delay discounting; i.e., preferences for immediate smaller rewards relative to delayed larger rewards) is moderated by the extent to which gamblers have a financially focused self-concept. Specifically, we hypothesized that delay discounting would be a strong predictor of disordered gambling among those who base their self-worth on their financial success. To test this moderated-mediation model, a community sample of gamblers (N = 239) completed measures that assessed relative deprivation, delay discounting, financially focused self-concept, and disordered gambling severity...
February 2, 2017: Journal of Gambling Studies
https://www.readbyqxmd.com/read/28125243/predictors-of-smoking-lapse-during-a-48-hour-laboratory-analogue-smoking-cessation-attempt
#13
Christine Muench, Laura M Juliano
Many individuals who attempt to quit smoking experience a smoking lapse early on in the quitting process, with most lapses resulting in a return to regular smoking. Using a novel laboratory model, this study sought to investigate baseline predictors of smoking lapse during a brief, simulated smoking quit attempt. Self-report baseline measures were completed by 81 smokers, who also smoked a cigarette in the laboratory to equate recent smoke exposure. Participants were then given brief face-to-face smoking-cessation counseling along with monetary incentives to abstain from smoking for 48 hr (i...
January 26, 2017: Psychology of Addictive Behaviors: Journal of the Society of Psychologists in Addictive Behaviors
https://www.readbyqxmd.com/read/28124820/evaluation-of-the-long-term-cost-effectiveness-of-liraglutide-versus-lixisenatide-for-treatment-of-type-2-diabetes-mellitus-in-the-uk-setting
#14
B Hunt, G Vega-Hernandez, W J Valentine, N Kragh
AIMS: Glucagon-like peptide-1 (GLP-1) receptor agonists represent an attractive treatment option for patients with type 2 diabetes mellitus as they are associated with improved glycemic control, weight loss and low risk of hypoglycemia. The present analysis aimed to compare the cost-effectiveness of two GLP-1 receptor agonists, liraglutide 1.8 mg and lixisenatide 20 µg, in the UK setting based on the LIRA-LIXI(TM) trial (NCT01973231). MATERIALS AND METHODS: Projections of costs (in 2015 pound sterling [GBP]) and clinical outcomes were made over patient lifetimes using the IMS CORE Diabetes Model...
January 26, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28120485/effects-of-acute-buspirone-administration-on-inhibitory-control-and-sexual-discounting-in-cocaine-users
#15
Justin C Strickland, B Levi Bolin, Michael R Romanelli, Craig R Rush, William W Stoops
OBJECTIVE: Cocaine users display deficits in inhibitory control and make impulsive choices that may increase risky behavior. Buspirone is an anxiolytic that activates dopaminergic and serotonergic systems and improves impulsive choice (i.e., reduces sexual risk-taking intent) in cocaine users when administered chronically. We evaluated the effects of acutely administered buspirone on inhibitory control and impulsive choice. METHODS: Eleven subjects with a recent history of cocaine use completed this within-subject, placebo-controlled study...
January 2017: Human Psychopharmacology
https://www.readbyqxmd.com/read/28118044/delay-discounting-of-video-game-players-comparison-of-time-duration-among-gamers
#16
Frank D Buono, Matthew E Sprong, Daniel P Lloyd, Christopher J Cutter, Destiny M B Printz, Ryan M Sullivan, Brent A Moore
Video game addiction or Internet game disorder, as proposed by the DSM-5 (Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition), has similar criterion characteristics to other impulse control disorders. There is limited research examining video game addiction within a behavioral economic framework using delay discounting. The current study evaluated delay-discounting patterns of money and video game play by usual weekly hours of video game play. A total of 104 participants were split into 1 of 3 groups of video game players (low, medium, and high) and were asked to complete a monetary and video game discounting procedure through an online survey...
February 2017: Cyberpsychology, Behavior and Social Networking
https://www.readbyqxmd.com/read/28101922/a-second-type-of-magnitude-effect-reinforcer-magnitude-differentiates-delay-discounting-between-substance-users-and-controls
#17
Alexandra M Mellis, Alina E Woodford, Jeffrey S Stein, Warren K Bickel
Basic research on delay discounting, examining preference for smaller-sooner or larger-later reinforcers, has demonstrated a variety of findings of considerable generality. One of these, the magnitude effect, is the observation that individuals tend to exhibit greater preference for the immediate with smaller magnitude reinforcers. Delay discounting has also proved to be a useful marker of addiction, as demonstrated by the highly replicated finding of greater discounting rates in substance users compared to controls...
January 2017: Journal of the Experimental Analysis of Behavior
https://www.readbyqxmd.com/read/28088471/effects-of-group-i-metabotropic-glutamate-receptor-antagonists-on-sensitivity-to-reinforcer-magnitude-and-delayed-reinforcement-in-a-delay-discounting-task-in-rats-contribution-of-delay-presentation-order
#18
Justin R Yates, Katherine K Rogers, Benjamin T Gunkel, Nicholas A Prior, Mallory N Hughes, Sara M Sharpe, Hunter L Campbell, Anthony B Johnson, Margaret G Keller, Kerry A Breitenstein, Hansen N Shults
Metabotropic glutamate receptor 1 (mGluR1) blockade has been shown to decrease impulsive choice, as measured in delay discounting. However, several variables are known to influence an animal's discounting, including sensitivity to delayed reinforcement and sensitivity to reinforcer magnitude. The goal of this experiment was to determine the effects of mGluR1, as well as mGluR5, antagonism on these parameters. Forty Sprague Dawley rats were trained in delay discounting, in which consistently choosing a small, immediate reward reflects impulsive choice...
March 30, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28087369/multidimensional-assessment-of-impulsivity-in-relation-to-obesity-and-food-addiction
#19
Lauren VanderBroek-Stice, Monika K Stojek, Steven R H Beach, Michelle R vanDellen, James MacKillop
Based on similarities between overconsumption of food and addictive drugs, there is increasing interest in "food addiction," a compulsive eating pattern defined using symptoms parallel to substance use disorders. Impulsivity, a multidimensional construct robustly linked to drug addiction, has been increasingly examined as an obesity determinant, but with mixed findings. This study sought to clarify relations between three major domains of impulsivity (i.e., impulsive personality traits, discounting of delayed rewards, and behavioral inhibition) in both obesity and food addiction...
January 10, 2017: Appetite
https://www.readbyqxmd.com/read/28077716/the-attraction-effect-modulates-reward-prediction-errors-and-intertemporal-choices
#20
Sebastian Gluth, Jared M Hotaling, Jörg Rieskamp
: Classical economic theory contends that the utility of a choice option should be independent of other options. This view is challenged by the attraction effect, in which the relative preference between two options is altered by the addition of a third, asymmetrically dominated option. Here, we leveraged the attraction effect in the context of intertemporal choices to test whether both decisions and reward prediction errors (RPE) in the absence of choice violate the independence of irrelevant alternatives principle...
January 11, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
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