Article
Behavioral Sciences
Magdalen G. Schluter, David C. Hodgins
Summary: The study suggests a potential maintaining role of probabilistic discounting in gambling disorder, but does not support a maintaining role for delay discounting.
FRONTIERS IN BEHAVIORAL NEUROSCIENCE
(2021)
Article
Behavioral Sciences
C. Renee Renda, Jillian M. Rung, Sara Peck, Gregory J. Madden
Summary: Research shows that reducing impulsive choice through delay-exposure training can help ameliorate maladaptive behaviors. In rat experiments, it was found that 60 sessions of delay-exposure training significantly decreased impulsive choice, with this effect remaining prominent at the follow-up assessment.
Article
Behavioral Sciences
Guy A. Higgins, Matt Brown, Cam MacMillan, Leo B. Silenieks, Sandy Thevarkunnel
Summary: In this study, the effects of AMP and ATX were compared in different tasks, with ATX showing a reducing effect on impulsive behavior but no significant impact on impulsive choice and risky decision making, while AMP affecting choice preference and discounting, but in a nuanced manner.
PHARMACOLOGY BIOCHEMISTRY AND BEHAVIOR
(2021)
Article
Neurosciences
Maurice -Philipp Zech, Sandra Schaeble, Tobias Kalenscher
Summary: Temporal reward discounting refers to the decrease in the value of a reward as the delay increases. This study investigated the decision-making patterns of rats when choosing between differently timed electric shocks and rewards. The results suggest that the proximity of a shock to a subsequent reward influences the devaluation of the reward. Depending on the timing of the shock-reward contiguity, rats may prefer later rewards of equal magnitudes.
Article
Psychology, Biological
Tyler S. Garman, Barry Setlow, Caitlin A. Orsini
Summary: Chronic exposure to a high-fat diet does not significantly affect impulsive choice, but it may increase motivation for a sucrose reward. Amphetamine has a similar effect on impulsive choice in both diet groups.
PHYSIOLOGY & BEHAVIOR
(2021)
Article
Endocrinology & Metabolism
Carolin A. Lewis, Ann-Christin S. Kimmig, Nils B. Kroemer, Shakoor Pooseh, Michael N. Smolka, Julia Sacher, Birgit Derntl
Summary: Fluctuating ovarian hormones have been shown to affect decision-making processes in women. However, women using oral contraceptives do not differ in value-based decision-making compared to the early follicular and periovulatory natural menstrual cycle phases.
FRONTIERS IN ENDOCRINOLOGY
(2022)
Article
Neurosciences
Caesar M. Hernandez, Joseph A. McQuail, Tyler W. Ten Eyck, Alexa-Rae Wheeler, Chase C. Labiste, Barry Setlow, Jennifer L. Bizon
Summary: The ability to choose between immediate and delayed gratification is crucial for well-being. This study investigates the neural mechanisms underlying age differences in intertemporal choice using a rat model. The findings suggest that GABA(B) receptors in the prelimbic cortex and basolateral amygdala contribute to these age differences, and the expression of GABA(B)R subunits differs in these brain regions among aged rats.
Article
Nutrition & Dietetics
Joseph S. Bellitti, Tera L. Fazzino
Summary: The study found no significant associations between discounting of money and hyper-palatable foods (HPF) and food addiction (FA) symptoms among a general population sample. This suggests that discounting HPF may not be a key behavioral feature among individuals who endorse FA symptoms.
Article
Behavioral Sciences
Lidia Belles, Chloe Arrondeau, Ginna Uruena-Mendez, Nathalie Ginovart
Summary: Impulsivity is a complex concept with multiple dimensions, and its underlying dopaminergic mechanisms in the general population are not well understood. This study investigated the relationships between impulsivity constructs and their dopaminergic basis using a rat model. The results showed that risky decision-making and delay discounting were positively correlated, while impulsive action was only correlated with risky decision-making. There were innate differences in impulsivity between the high-avoidance and low-avoidance rats. The effects of dopaminergic drugs varied across different impulsivity constructs, with D2/3R agonism showing baseline-dependent effects on impulsive action and impulsive choice.
PHARMACOLOGY BIOCHEMISTRY AND BEHAVIOR
(2023)
Article
Behavioral Sciences
Macarena Moreno, Victor Azocar, Alvaro Verges, Jose Antonio Fuentealba
Summary: The study found that increased dopamine release in the dorsolateral striatum of high impulsive rats may contribute to impulsive choice, indicating a hyper-activated nigro-striatal pathway. However, differences in DA uptake and DA extracellular concentration were not significant.
BEHAVIOURAL BRAIN RESEARCH
(2021)
Article
Nutrition & Dietetics
Gabriela Ribeiro, Sandra Torres, Ana B. Fernandes, Marta Camacho, Teresa L. Branco, Sandra S. Martins, Armando Raimundo, Albino J. Oliveira-Maia
Summary: The study found that individuals with obesity reported higher sweet taste intensity ratings compared to healthy controls. Additionally, while psychological measures of reward-related feeding behavior assessed a common construct, sweet intensity perception may represent a different dimension related to obesity.
FRONTIERS IN NUTRITION
(2022)
Article
Psychology, Biological
Sara Peck, Emma Preston, Kelsey B. Smith, Gregory J. Madden
Summary: This study examined the effects of delay exposure training on impulsive choice in rats of different genders. The findings showed that delay-exposure training reduced impulsive choice in male rats, but only had a temporary effect in female rats.
BEHAVIOURAL PROCESSES
(2022)
Article
Behavioral Sciences
Fernanda Gonzalez-Barriga, Vladimir Orduna
Summary: Both positive and aversive delayed consequences play a crucial role in decision making. While there is extensive research on temporal discounting of positive consequences, the study of aversive consequences is limited. This study evaluated impulsive behavior in spontaneously hypertensive rats (SHR), an animal model of ADHD, and found that choice impulsivity was similar between strains for both positive and aversive consequences. However, SHR exhibited a higher level of impulsive action compared to the control strain.
BEHAVIOURAL BRAIN RESEARCH
(2022)
Article
Psychology, Multidisciplinary
Wojciech Bialaszek, Przemyslaw Marcowski, Pawel Ostaszewski
Summary: The study found that the magnitude effect is present for monetary gains but not for monetary losses in delay discounting and probability discounting. The subjective probability of receiving future outcomes is amount-dependent for gains but not for losses. The risk associated with future payoffs of different magnitudes may explain the magnitude effect.
CURRENT PSYCHOLOGY
(2021)
Article
Neurosciences
Kaili Jiang, Xiaoyan Liu, Ruibin Su
Summary: DOI and lisuride have contrasting effects on impulsive decision-making via distinct receptors. DOI-induced increase of impulsivity is mediated by the 5-HT2A receptor, while lisuride-induced inhibition of impulsivity is regulated by the dopamine D-2/D-3 receptor.
PSYCHOPHARMACOLOGY
(2022)