Conditioning, Operant (Latest Articles)

Latest indexed articles for 'Conditioning, Operant'

Articles 1 to 10 of 200:

Reward-seeking and discrimination deficits displayed by hypodopaminergic mice are prevented in mice lacking dopamine D4 receptors.

30 Oct 2009 The dopamine D4 receptor (D4R) is predominantly expressed in the prefrontal cortex, a brain area that integrates motor, rewarding, and cognitive information. Because participation of D4Rs in executive learning is largely unknown, we challenged D4R ...
rec_pub_19598175-reward-seeking-discrimination-deficits-displayed-hypodopaminergic.htm

Ventral striatal neurons encode the value of the chosen action in rats deciding between differently delayed or sized rewards.

19 Oct 2009 The ventral striatum (VS) is thought to serve as a gateway whereby associative information from the amygdala and prefrontal regions can influence motor output to guide behavior. If VS mediates this "limbic-motor" interface, then one might expect ...
rec_pub_19846724-ventral-striatal-neurons-encode-value-chosen-action-rats-deciding.htm

Single-trial phase precession in the hippocampus.

19 Oct 2009 During the crossing of the place field of a pyramidal cell in the rat hippocampus, the firing phase of the cell decreases with respect to the local theta rhythm. This phase precession is usually studied on the basis of data in which many place field ...
rec_pub_19846711-single-trial-phase-precession-hippocampus.htm

Analgesia accompanying food consumption requires ingestion of hedonic foods.

12 Oct 2009 Animals eat rather than react to moderate pain. Here, we examined the behavioral, hedonic, and neural requirements for ingestion analgesia in ad libitum fed rats. Noxious heat-evoked withdrawals were similarly suppressed during self-initiated ...
rec_pub_19828818-analgesia-accompanying-food-consumption-requires-ingestion-hedonic.htm

Appetitively motivated instrumental learning in SynGAP heterozygous knockout mice.

29 Sep 2009 The synaptic Ras/Rap-GTPase-activating protein (SynGAP) regulates specific intracellular events following N-methyl-d-aspartate receptor (NMDAR) activation. Here, the impact of SynGAP heterozygous knockout (SG+/-) on NMDAR-dependent functions was ...
rec_pub_19824778-appetitively-motivated-instrumental-learning-syngap-heterozygous.htm

Interval timing accuracy and scalar timing in C57BL/6 mice.

29 Sep 2009 In many species, interval timing behavior is accurate-appropriate estimated durations-and scalar-errors vary linearly with estimated durations. Whereas accuracy has been previously examined, scalar timing has not been clearly demonstrated in house ...
rec_pub_19824777-interval-timing-accuracy-scalar-timing-c57bl-6-mice.htm

Assessing the role of the growth hormone secretagogue receptor in motivational learning and food intake.

29 Sep 2009 The orexigenic neuropeptide ghrelin is an endogeneous ligand for the growth hormone secretagogue receptor (GHS-R). This orexigen is expressed in both the periphery and in the central system, including portions of mesolimbic dopaminergic circuitry ...
rec_pub_19824771-assessing-role-growth-hormone-secretagogue-receptor-motivational.htm

Interactions between cognition and circadian rhythms: attentional demands modify circadian entrainment.

29 Sep 2009 Animals and humans are able to predict and synchronize their daily activity to signals present in their environments. Environmental cues are most often associated with signaling the beginning or the end of a daily activity cycle, but they can also ...
rec_pub_19824760-interactions-cognition-circadian-rhythms-attentional-demands-modify.htm

c-Fos expression associated with reinstatement of cocaine-seeking behavior by response-contingent conditioned cues.

29 Sep 2009 The capability of cocaine cues to generate craving in cocaine-dependent humans, even after extended abstinence, is modeled in rats using cue reinstatement of extinguished cocaine-seeking behavior. We investigated neural activity associated with ...
rec_pub_19533625-c-fos-expression-associated-reinstatement-cocaine-seeking-behavior.htm

Behaviorally measured audiograms and gap detection thresholds in CBA/CaJ mice.

29 Sep 2009 Tone detection and temporal gap detection thresholds were determined in CBA/CaJ mice using a Go/No-go procedure and the psychophysical method of constant stimuli. In the first experiment, audiograms were constructed for five CBA/CaJ mice. Thresholds ...
rec_pub_19756650-behaviorally-measured-audiograms-gap-detection-thresholds-cba-caj-mice.htm

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