Results 21 to 30 of about 195,650 (335)

Ethanol exposure interacts with training conditions to influence behavioral adaptation to a negative instrumental contingency

open access: yesFrontiers in Behavioral Neuroscience, 2014
We previously reported that, in male, Long Evans rats, instrumental lever pressing that had been reinforced during limited training under a variable interval (VI) schedule by oral self-administration of a 10% sucrose/10% ethanol (10S10E) solution was ...
Regina A. Mangieri   +2 more
doaj   +1 more source

Balancing Project Schedule, Cost, and Value under Uncertainty: A Reinforcement Learning Approach

open access: yesAlgorithms, 2023
Industrial projects are plagued by uncertainties, often resulting in both time and cost overruns. This research introduces an innovative approach, employing Reinforcement Learning (RL), to address three distinct project management challenges within a ...
Claudio Szwarcfiter   +2 more
doaj   +1 more source

Nucleus accumbens core lesions retard instrumental learning and performance with delayed reinforcement in the rat. [PDF]

open access: yes, 2005
BACKGROUND: Delays between actions and their outcomes severely hinder reinforcement learning systems, but little is known of the neural mechanism by which animals overcome this problem and bridge such delays.
Cardinal, Rudolf N, Cheung, Timothy HC
core   +3 more sources

Selective disruption of stimulus-reward learning in glutamate receptor gria 1 knockout mice. [PDF]

open access: yes, 2003
Glutamatergic neurotransmission via AMPA receptors has been an important focus of studies investigating neuronal plasticity. AMPA receptor glutamate receptor 1 (GluR1) subunits play a critical role in long-term potentiation (LTP).
Mead, Andy N, Stephens, David N
core   +2 more sources

Modeling the violation of reward maximization and invariance in reinforcement schedules.

open access: yesPLoS Computational Biology, 2008
It is often assumed that animals and people adjust their behavior to maximize reward acquisition. In visually cued reinforcement schedules, monkeys make errors in trials that are not immediately rewarded, despite having to repeat error trials.
Giancarlo La Camera, Barry J Richmond
doaj   +1 more source

Hypocretin-1 receptors regulate the reinforcing and reward-enhancing effects of cocaine: pharmacological and behavioral genetics evidence. [PDF]

open access: yes, 2012
Considerable evidence suggests that transmission at hypocretin-1 (orexin-1) receptors (Hcrt-R1) plays an important role in the reinstatement of extinguished cocaine-seeking behaviors in rodents.
Fowler, Christie D   +3 more
core   +3 more sources

Adolescent methylphenidate treatment differentially alters adult impulsivity and hyperactivity in the Spontaneously Hypertensive Rat model of ADHD [PDF]

open access: yes, 2016
Impulsivity and hyperactivity are two facets of attention deficit/hyperactivity disorder (ADHD). Impulsivity is expressed as reduced response inhibition capacity, an executive control mechanism that prevents premature execution of an intermittently ...
Bardo, M. T.   +3 more
core   +1 more source

Ethanol Reinforcement Elicits Novel Response Inhibition Behavior in a Rat Model of Ethanol Dependence

open access: yesBrain Sciences, 2018
Lower impulse control is a known risk factor for drug abuse vulnerability. Chronic experience with illicit drugs is suggested to enhance impulsivity and thereby perpetuate addiction.
Sucharita S. Somkuwar   +6 more
doaj   +1 more source

Effects of neonatal NMDA-subtype glutamate receptor blockade on behavior of adult male rats

open access: yesУчёные записки Санкт-Петербургского государственного медицинского университета им. Акад. И.П. Павлова, 2022
Introduction. Cognitive impairments are important components of the clinical picture of many neuropsychiatric disorders, and are in dire need of evidence-based pharmacotherapeutic approaches.The objective was to test a model of delayed cognitive ...
I. M. Sukhanov   +3 more
doaj   +1 more source

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