Reinforcement Schedule (Latest Articles)

Latest indexed articles for 'Reinforcement Schedule'

Articles 61 to 70 of 200:

Selective changes in sensitivity to benzodiazepines, and not other positive GABA(A) modulators, in rats receiving flunitrazepam chronically.

8 Mar 2009 RATIONALE: Tolerance and dependence can develop during chronic benzodiazepine treatment; however, cross tolerance and cross dependence to positive modulators acting at other sites on GABA(A) receptors might not occur. OBJECTIVES: The current study ...
rec_pub_19274455-selective-changes-sensitivity-benzodiazepines-positive-gaba.htm

Sensitivity, changeover responses, and choice in transition.

7 Mar 2009 Studies of choice in steady state have shown that sensitivity to reinforcement increases with increasing fixed-ratio changeover (FR CO) requirements. We assessed the generality of this finding with choice in transition. Food deliveries were ...
rec_pub_19615608-sensitivity-changeover-responses-choice-transition.htm

Behavioral research in pigeons with ARENA: an automated remote environmental navigation apparatus.

7 Mar 2009 Three experiments established the effectiveness of an Automated Remote Environmental Navigation Apparatus (ARENA) developed in our lab to study behavioral processes in pigeons. The technology utilizes one or more wireless modules, each capable of ...
rec_pub_19429204-behavioral-research-pigeons-arena-automated-remote-environmental.htm

High-rate operant behavior in two mouse strains: a response-bout analysis.

7 Mar 2009 Operant behavior sometimes occurs in bouts characterized by an initiation rate, within-bout response rate, and bout length. The generality of this structure was tested using high-rate nose-poking in mice. Reinforcement of short interresponse times ...
rec_pub_19429225-high-rate-operant-behavior-two-mouse-strains-response-bout-analysis.htm

Effects of initial-link duration on preference and resistance to change in concurrent-chains schedules.

7 Mar 2009 Previous studies with concurrent-chains procedures have shown that preference for a terminal-link signaling a higher reinforcement rate decreases as initial-link durations increase. Using a concurrent-chains procedure, the present experiment ...
rec_pub_19429215-effects-initial-link-duration-preference-resistance-change-concurrent.htm

D2R striatopallidal neurons inhibit both locomotor and drug reward processes.

6 Mar 2009 The specific functions of dopamine D(2) receptor-positive (D(2)R) striatopallidal neurons remain poorly understood. Using a genetic mouse model, we found that ablation of D(2)R neurons in the entire striatum induced hyperlocomotion, whereas ablation ...
rec_pub_19270687-d2r-striatopallidal-neurons-inhibit-locomotor-drug-reward-processes.htm

Differential actions of adenosine A1 and A2A antagonists on the effort-related effects of dopamine D2 antagonism.

Mar 2009 Adenosine and dopamine receptors in striatal areas interact to regulate a number of different functions, including aspects of motor control and motivation. Recent studies indicate that adenosine A(2A) receptor antagonists can reverse the effects of ...
rec_pub_19428636-differential-actions-adenosine-a1-a2a-antagonists-effort-related.htm

Dissociation of the effects of MTEP [3-[(2-methyl-1,3-thiazol-4-yl)ethynyl]piperidine] on conditioned reinstatement and reinforcement: comparison between cocaine and a conventional reinforcer.

Mar 2009 To advance understanding of the potential of metabotropic glutamate receptor (mGluR) 5 as treatment targets for cocaine addiction, the effects of MTEP [3-[(2-methyl-1,3-thiazol-4-yl) ethynyl]piperidine] (a selective mGluR5 antagonist) on conditioned ...
rec_pub_19258516-dissociation-effects-mtep-3-2-methyl-1-3-thiazol-4-yl-ethynyl.htm

The preferential dopamine D3 receptor antagonist S33138 inhibits cocaine reward and cocaine-triggered relapse to drug-seeking behavior in rats.

27 Feb 2009 We have previously reported that selective dopamine (DA) D3 receptor antagonists are effective in a number of animal models of drug addiction, but not in intravenous drug self-administration, suggesting a limited ability to modify drug reward. In ...
rec_pub_19136017-the-preferential-dopamine-d3-receptor-antagonist-s33138-inhibits.htm

Baclofen prevents drug-induced reinstatement of extinguished nicotine-seeking behaviour and nicotine place preference in rodents.

26 Feb 2009 The gamma-aminobutyric acid(GABA)-B receptor agonist baclofen is known to reduce drug intake in both animals and humans and to prevent reinstatement of cocaine-, opioid-, and alcohol-seeking in rats after a period of extinction, but its effect on ...
rec_pub_19250803-baclofen-prevents-drug-induced-reinstatement-extinguished-nicotine.htm

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