Conditioning, Operant (Latest Articles)

Latest indexed articles for 'Conditioning, Operant'

Articles 101 to 110 of 200:

A novel operant conflict procedure using incrementing shock intensities to assess the anxiolytic and anxiogenic effects of drugs.

29 Apr 2009 There is a need for novel anxiolytics, which are effective, but do not cause sedation, tolerance, and rebound anxiety on discontinuation. To investigate a procedure that can be used to assess these characteristics preclinically, rats were initially ...
rec_pub_19455771-a-novel-operant-conflict-procedure-using-incrementing-shock.htm

The neuropharmacological substrates of nicotine reward: reinforcing versus reinforcement-enhancing effects of nicotine.

29 Apr 2009 Compulsive nicotine use is thought to be maintained by the acute reinforcing effects of nicotine and the reinforcement-enhancing effects of nicotine, in addition to the negative consequences of nicotine abstinence. Nicotine self-administration and ...
rec_pub_19421028-the-neuropharmacological-substrates-nicotine-reward-reinforcing.htm

Combat veterans, mental health issues, and the death penalty: addressing the impact of post-traumatic stress disorder and traumatic brain injury.

29 Apr 2009 More than 1.5 million Americans have participated in combat operations in Iraq and Afghanistan over the past seven years. Some of these veterans have subsequently committed capital crimes and found themselves in our nation's criminal justice system. ...
rec_pub_19618551-combat-veterans-mental-health-issues-death-penalty-addressing-impact.htm

Incentive contrast in domestic dogs (Canis familiaris).

29 Apr 2009 Dogs (Canis familiaris) trained to receive a preferred food (dry beef liver) from an experimenter learned to maintain a longer gaze on the experimenter than dogs receiving a less preferred food (dog pellets). Dogs downshifted from dry liver to ...
rec_pub_19450019-incentive-contrast-domestic-dogs-canis-familiaris.htm

Frontal operculum temporal difference signals and social motor response learning.

29 Apr 2009 Substantial experimental evidence supports the theory that the dopaminergic system codes a phasic (short duration) signal predicting the delivery of primary reinforcers, such as water when thirsty, during Pavlovian learning. This signal is described ...
rec_pub_18537114-frontal-operculum-temporal-difference-signals-social-motor-response.htm

Positive reinforcement training in rhesus macaques-training progress as a result of training frequency.

29 Apr 2009 Positive reinforcement training (PRT) efficiency was examined as a function of training frequency in 33 pair- or triple-housed female rhesus macaques. The animals were trained three times a week, once a day or twice a day, using PRT and a clicker as ...
rec_pub_19195008-positive-reinforcement-training-rhesus-macaques-training-progress.htm

Dissociable effects of noradrenaline, dopamine, and serotonin uptake blockade on stop task performance in rats.

28 Apr 2009 RATIONALE: The stop-signal paradigm measures the ability to stop a motor response after its execution has been initiated. Impairments in inhibiting inappropriate behavior and prolonged stop-signal reaction times (SSRTs) are characteristic of several ...
rec_pub_19404616-dissociable-effects-noradrenaline-dopamine-serotonin-uptake-blockade.htm

Simultaneous anhedonia and exaggerated locomotor activation in an animal model of depression.

27 Apr 2009 RATIONALE: Anhedonia, or hyposensitivity to normally pleasurable stimuli, is a cardinal symptom of depression. As such, reward circuitry may comprise a substrate with relevance to this symptom of depression. OBJECTIVES: Our aim was to characterize ...
rec_pub_19404615-simultaneous-anhedonia-exaggerated-locomotor-activation-animal-model.htm

Hippocampal lesions interfere with long-trace taste aversion conditioning.

21 Apr 2009 This series of experiments investigated the effects of dorsal and ventral hippocampal lesions on taste aversion learning. Although damage to the hippocampus did not affect the acquisition of a taste aversion when the conditioning procedure used a ...
rec_pub_19394353-hippocampal-lesions-interfere-long-trace-taste-aversion-conditioning.htm

Meal patterns of mice under systematically varying approach and unit costs for food in a closed economy.

21 Apr 2009 Several field and experimental studies have investigated the behavioral economics of food intake. In the laboratory, operant behavior has been used to emulate cost and to generate demand functions that express the relationship between the price of ...
rec_pub_19394352-meal-patterns-mice-systematically-varying-approach-unit-costs-food.htm

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