Conditioning, Operant (Latest Articles)

Latest indexed articles for 'Conditioning, Operant'

Articles 171 to 180 of 200:

Sex differences in learning processes of classical and operant conditioning.

7 Mar 2009 Males and females learn and remember differently at different times in their lives. These differences occur in most species, from invertebrates to humans. We review here sex differences as they occur in laboratory rodent species. We focus on ...
rec_pub_19272397-sex-differences-learning-processes-classical-operant-conditioning.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

Effects of the dopamine stabilizer, OSU-6162, on brain stimulation reward and on quinpirole-induced changes in reward and locomotion.

7 Mar 2009 Dysregulation of limbic dopamine (DA) neurotransmission results in abnormal positive or negative emotional states that characterize several mental disorders. Drugs that restore DA homeostasis are most likely to constitute effective treatments for ...
rec_pub_19269794-effects-dopamine-stabilizer-osu-6162-brain-stimulation-reward.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

Lobeline, a nicotinic partial agonist attenuates alcohol consumption and preference in male C57BL/6J mice.

3 Mar 2009 Lobeline is a partial nicotinic agonist and is currently being investigated as a therapeutic drug for several addictive disorders particularly for smoking cessation. The present study evaluated the effects of repeated (continuous and recurring) ...
rec_pub_19268674-lobeline-nicotinic-partial-agonist-attenuates-alcohol-consumption.htm

Sex-specific susceptibility to cocaine in rats with a history of prenatal stress.

3 Mar 2009 Across species, maternal stress during prenatal life (prenatal stress [PS]) increases the expression of health complications in the developing offspring. While numerous reports indicate that male rats with a history of PS are vulnerable to ...
rec_pub_19268677-sex-specific-susceptibility-cocaine-rats-history-prenatal-stress.htm

D(1)-like receptor activation improves PCP-induced cognitive deficits in animal models: Implications for mechanisms of improved cognitive function in schizophrenia.

3 Mar 2009 Phencyclidine (PCP) produces cognitive deficits of relevance to schizophrenia in animal models. The aim was to investigate the efficacy of the D(1)-like receptor agonist, SKF-38393, to improve PCP-induced deficits in the novel object recognition ...
rec_pub_19268547-d-1-like-receptor-activation-improves-pcp-induced-cognitive-deficits.htm

Ventral striatal dopamine modulation of different forms of behavioral flexibility.

2 Mar 2009 Different forms of behavioral flexibility are facilitated by interactions between separate regions of the prefrontal cortex and their striatal outputs. However, the contribution of ventral striatal dopamine (DA) to these functions is unclear. The ...
rec_pub_19262467-ventral-striatal-dopamine-modulation-different-forms-behavioral.htm

Vasopressin 1b receptor knock-out impairs memory for temporal order.

2 Mar 2009 Mice lacking a functional vasopressin 1b receptor (Avpr1b) display decreased levels of aggression and social memory. Here, we used Avpr1b-knock-out (Avpr1b(-/-)) mice to examine whether an abnormality of this receptor results in specific cognitive ...
rec_pub_19261862-vasopressin-1b-receptor-knock-impairs-memory-temporal-order.htm

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