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Reinforcement Schedule (Latest Articles)
Latest indexed articles for 'Reinforcement Schedule'
Articles 91 to 100 of 200:
Modeling the dynamics of choice.
29 Jan 2009 
A simple linear-operator model both describes and predicts the dynamics of choice that may underlie the matching relation. We measured inter-food choice within components of a schedule that presented seven different pairs of concurrent ...
rec_pub_19429211-modeling-dynamics-choice.htm
29 Jan 2009 Four pigeons were exposed to a concurrent-chains procedure in which the initial link was constant (variable-interval 10s) while the terminal-link delays changed across sessions according to a pseudorandom binary series. In the short condition, the ...
rec_pub_19429217-response-allocation-rapid-acquisition-concurrent-chains-procedure.htm
26 Jan 2009 The goal of this study was to determine D(1) receptor availability in human cocaine-dependent (CD) subjects and matched healthy controls (HCs). In addition, the CD subjects performed cocaine self-administration sessions in order to explore the ...
rec_pub_19177067-dopamine-d1-receptors-cocaine-dependence-measured-pet-choice-self.htm
26 Jan 2009 
There has been much interest in the relative importance of dopamine and serotonin transporters in the abuse-related-effects of cocaine. We tested the hypotheses that mice lacking the dopamine transporter (DAT(-/-)), the serotonin transporter ...
rec_pub_19176817-dramatically-decreased-cocaine-self-administration-dopamine-serotonin.htm
22 Jan 2009 RATIONALE: We have previously reported that cocaine self-administration is facilitated in male rats not residing in the test chambers (Non Resident rats) relative to rats living in the test chambers at all times (Resident rats). Surprisingly, the ...
rec_pub_19169671-drug-context-differently-regulates-cocaine-versus-heroin-self.htm
Effects of d-amphetamine on behavior maintained by signaled and unsignaled delays to reinforcement.
20 Jan 2009 Four pigeons responded under a progressive-delay procedure. In a signaled-delay condition, a chained variable interval (VI) 30-s progressive time (PT) 4-s schedule was arranged; in an unsignaled-delay condition, a tandem VI 30-s PT 4-s schedule was ...
rec_pub_19429220-effects-d-amphetamine-behavior-maintained-signaled-unsignaled-delays.htm
19 Jan 2009 The metabotropic glutamate receptor 7 (mGluR7) has received much attention as a potential target for the treatment of epilepsy, major depression, and anxiety. In this study, we investigated the possible involvement of mGluR7 in cocaine reward in ...
rec_pub_19158667-metabotropic-glutamate-receptor-7-modulates-rewarding-effects-cocaine.htm
Effects of unpredictable changes in initial-link duration on choice and timing.
19 Jan 2009 Four pigeons responded in a concurrent-chains procedure in which terminal-link schedules were fixed-interval (FI) 10s and FI 20s. Across sessions, the location of the shorter terminal-link changed according to a pseudorandom binary sequence. Each ...
rec_pub_19429216-effects-unpredictable-changes-initial-link-duration-choice-timing.htm
Short-term temporal discounting of reward value in human ventral striatum.
19 Jan 2009 Delayed rewards lose their value for economic decisions and constitute weaker reinforcers for learning. Temporal discounting of reward value already occurs within a few seconds in animals, which allows investigations of the underlying ...
rec_pub_19164109-short-term-temporal-discounting-reward-value-human-ventral-striatum.htm
18 Jan 2009 The ability for incentive properties of reward stimuli to maintain motivated behavior in the absence of the rewards themselves may be reliant in part on a glutamatergic projection from the basolateral (BLA) amygdala to the nucleus accumbens septi ...
rec_pub_19344638-functional-interaction-basolateral-amygdala-nucleus-accumbens.htm
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