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Conditioning, Operant (Latest Articles)
Latest indexed articles for 'Conditioning, Operant'
Articles 81 to 90 of 200:
12 May 2009 
Steroid hormones, progesterone and estradiol, may influence approach and/or anxiety behavior. Female rats in behavioral estrous, have elevated levels of these steroid hormones and demonstrate more approach and less anxiety behavior than do diestrous ...
rec_pub_19447128-progestogens-estrogen-influence-impulsive-burying-avoidant-freezing.htm
12 May 2009 Replacement therapy with the synthetic mu-opioid agonist methadone is an efficacious treatment for opioid abuse. While much is known about methadone's pharmacology, its discriminative stimulus properties remain largely unexplored. The present study ...
rec_pub_19443130-route-administration-influences-substitution-patterns-rats-trained.htm
12 May 2009 INTRODUCTION: The efficacy of contingency-management (CM) and motivational enhancement therapy (MET) for college student smoking cessation was examined. METHODS: Nontreatment-seeking daily smokers (N = 110) were randomly assigned to 3 weeks of CM ...
rec_pub_19443788-contingency-management-motivational-enhancement-randomized-clinical.htm
Acute effects of morphine on distinct forms of impulsive behavior in rats.
11 May 2009 
RATIONALE: Disturbances in impulse control are key features of substance abuse disorders, and conversely, many drugs of abuse are known to elicit impulsive behavior both clinically and preclinically. To date, little is known with respect to the ...
rec_pub_19436995-acute-effects-morphine-distinct-forms-impulsive-behavior-rats.htm
Balancing risk and reward: a rat model of risky decision making.
11 May 2009 We developed a behavioral task in rats to assess the influence of risk of punishment on decision making. Male Long-Evans rats were given choices between pressing a lever to obtain a small, 'safe' food reward and a large food reward associated with ...
rec_pub_19440192-balancing-risk-reward-rat-model-risky-decision-making.htm
11 May 2009 Among a range of genetic mouse models of Huntington's disease, knock-in models that express full-length mutant huntingtin tend to have a slower developing and less severe behavioural phenotype than transgenic models carrying truncated variations of ...
rec_pub_19445966-rule-learning-visuospatial-function-motor-performance-hdh-q92-knock.htm
Neuronal correlates of instrumental learning in the dorsal striatum.
11 May 2009 We recorded neuronal activity simultaneously in the medial and lateral regions of the dorsal striatum as rats learned an operant task. The task involved making head entries into a response port followed by movements to collect rewards at an adjacent ...
rec_pub_19439679-neuronal-correlates-instrumental-learning-dorsal-striatum.htm
Dopamine, reinforcement learning, and addiction.
9 May 2009 Dopamine is intimately linked with the modes of action of drugs of addiction. However, although its role in the initiation of drug abuse seems relatively uncomplicated, its possible involvement in the development of compulsive drug taking, and ...
rec_pub_19434556-dopamine-reinforcement-learning-addiction.htm
Spinal glia modulate both adaptive and pathological processes.
8 May 2009 Recent research indicates that glial cells control complex functions within the nervous system. For example, it has been shown that glial cells contribute to the development of pathological pain, the process of long-term potentiation, and the ...
rec_pub_19435601-spinal-glia-modulate-adaptive-pathological-processes.htm
8 May 2009 Pain stimulates some behaviors (e.g., withdrawal responses) but depresses many other behaviors (e.g., feeding). Pain-stimulated behaviors are widely used in preclinical research on pain and analgesia, but human and veterinary medicine often rely on ...
rec_pub_19435650-effects-pain-analgesia-related-manipulations-intracranial-self.htm
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