Reinforcement Schedule (Latest Articles)

Latest indexed articles for 'Reinforcement Schedule'

Articles 71 to 80 of 200:

Improvement of age-related memory deficits by differential outcomes.

24 Feb 2009 BACKGROUND: The differential outcomes procedure (DOP) has proved useful to improve discrimination learning in both animals and humans. Here we adapted DOP to assess its utility to overcome the memory loss commonly associated with normal aging. ...
rec_pub_19243662-improvement-age-related-memory-deficits-differential-outcomes.htm

DRL performance of spontaneously hypertensive rats: dissociation of timing and inhibition of responses.

21 Feb 2009 In this experiment, we used a differential reinforcement of low rates (DRL) schedule to evaluate the performance of spontaneously hypertensive rats (SHR), Wistar Kyoto (WKY) and Wistar (WIS) rats, with the goal of dissociating the processes of ...
rec_pub_19428629-drl-performance-spontaneously-hypertensive-rats-dissociation-timing.htm

A comparison of responses and stimuli as time markers.

18 Feb 2009 A rat's behavior, as well as a stimulus, may be a time marker. But do they lead to similar performance? Eight rats were trained on a 20-s DRL procedure in which head-entry responses were time markers, i.e., each head-entry response indicated that ...
rec_pub_19429223-a-comparison-responses-stimuli-time-markers.htm

Enhancing effects of morphine on methamphetamine-induced reinforcing behavior and its association with dopamine release and metabolism in mice.

18 Feb 2009 Polydrug abuse has become a significant problem worldwide, and the combined use of methamphetamine (MA) and morphine (M) is now highly prevalent among addicts. In the present study, we investigated the neurobehavioral effects of repeated treatment ...
rec_pub_19245664-enhancing-effects-morphine-methamphetamine-induced-reinforcing.htm

Role of protein kinase C epsilon (PKCvarepsilon) in the reduction of ethanol reinforcement due to mGluR5 antagonism in the nucleus accumbens shell.

17 Feb 2009 RATIONALE: The type 5 metabotropic glutamate receptor (mGluR5) and the epsilon isoform of protein kinase C (PKCepsilon) regulate ethanol intake, and we have previously demonstrated that mGluR5 receptor antagonism reduces ethanol consumption via a ...
rec_pub_19225761-role-protein-kinase-c-epsilon-pkcvarepsilon-reduction-ethanol.htm

Cocaine-induced reinstatement during limited and extended drug access conditions in rhesus monkeys.

15 Feb 2009 RATIONALE: The progression of addiction from controlled to compulsive drug use leads to serious adverse consequences, including a greater propensity to relapse to drug use after sustained periods of abstinence. OBJECTIVE: The present study assessed ...
rec_pub_19221719-cocaine-induced-reinstatement-limited-extended-drug-access-conditions.htm

Effects of prefeeding, extinction, and distraction during sample and comparison presentation on sensitivity to reinforcer frequency in matching to sample.

11 Feb 2009 The present experiment examined the effects of several test manipulations on discrimination, accuracy and sensitivity to reinforcer frequency in a conditional discrimination. Four pigeons responded on a multiple schedule of matching to sample ...
rec_pub_19429198-effects-prefeeding-extinction-distraction-sample-comparison.htm

Strain differences in delay discounting using inbred rats.

9 Feb 2009 A heightened aversion to delayed rewards is associated with substance abuse and numerous other neuropsychiatric disorders. Many of these disorders are heritable, raising the possibility that delay aversion may also have a significant genetic or ...
rec_pub_19243451-strain-differences-delay-discounting-using-inbred-rats.htm

Withdrawal from free-choice high-fat high-sugar diet induces craving only in obesity-prone animals.

9 Feb 2009 INTRODUCTION: Vulnerability for weight gain is an individual trait. Obese people undertake dieting, but permanent weight loss is difficult to attain due to repeated phases of relapse to excess consumption. MATERIALS AND METHODS: In this study, male ...
rec_pub_19205668-withdrawal-free-choice-high-fat-high-sugar-diet-induces-craving.htm

Improving conditional discrimination learning and memory in five-year-old children: differential outcomes effect using different types of reinforcement.

3 Feb 2009 Previous studies have demonstrated that discriminative learning is facilitated when a particular outcome is associated with each relation to be learned. When this training procedure is applied (the differential outcomes procedure; DOP), learning is ...
rec_pub_19214832-improving-conditional-discrimination-learning-memory-five-year-old.htm

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