Conditioning, Classical (Latest Articles)

Latest indexed articles for 'Conditioning, Classical'

Articles 31 to 40 of 200:

Yoked delivery of cocaine is aversive and protects against the motivation for drug in rats.

30 Jul 2009 In Experiment 1, water-deprived rats had 5-min access to saccharin followed by active or yoked intravenous delivery of saline or cocaine (0.33 mg/infusion). Both cocaine groups avoided intake of the saccharin cue following saccharin-cocaine ...
rec_pub_19634952-yoked-delivery-cocaine-aversive-protects-motivation-drug-rats.htm

Interpreting patterns of brain activation in human fear conditioning with an attentional-associative learning model.

30 Jul 2009 J. E. Dunsmoor, P. A. Bandettini, and D. C. Knight conducted a neuroimaging study of human fear conditioning and analyzed brain activity under various pairing rates between a conditioned and an unconditioned stimulus. Computer simulations with an ...
rec_pub_19634945-interpreting-patterns-brain-activation-human-fear-conditioning.htm

Protein kinase Mzeta maintains fear memory in the amygdala but not in the hippocampus.

30 Jul 2009 Recent work on the long-term stability of memory and synaptic plasticity has identified a potentially critical role for protein kinase Mzeta (PKMzeta). PKMzeta is a constitutively active, atypical isoform of protein kinase C that is believed to ...
rec_pub_19634944-protein-kinase-mzeta-maintains-fear-memory-amygdala-hippocampus.htm

Delayed extinction attenuates conditioned fear renewal and spontaneous recovery in humans.

30 Jul 2009 This study investigated whether the retention interval after an aversive learning experience influences the return of fear after extinction training. After fear conditioning, participants underwent extinction training either 5 min or 1 day later and ...
rec_pub_19634943-delayed-extinction-attenuates-conditioned-fear-renewal-spontaneous.htm

Boosting cholinergic activity in gustatory cortex enhances the salience of a familiar conditioned stimulus in taste aversion learning.

30 Jul 2009 The cholinergic system is important for learning, memory, and responses to novel stimuli. Exposure to novel, but not familiar, tastes increases extracellular acetylcholine (ACh) levels in insular cortex (IC). To further examine whether cholinergic ...
rec_pub_19634934-boosting-cholinergic-activity-gustatory-cortex-enhances-salience.htm

Lesions of the medial preoptic area interfere with the display of a conditioned place preference for vaginocervical stimulation in rats.

30 Jul 2009 The present study examined the effect of ibotenic acid lesions of the medial preoptic area (mPOA) on the expression of a conditioned place preference (CPP) for vaginocervical stimulation. Rats with bilateral lesions of the mPOA failed to display the ...
rec_pub_19634932-lesions-medial-preoptic-area-interfere-display-conditioned-place.htm

Sleep selectively enhances hippocampus-dependent memory in mice.

30 Jul 2009 Sleep has been implicated as playing a critical role in memory consolidation. Emerging evidence suggests that reactivation of memories during sleep may facilitate the transfer of declarative memories from the hippocampus to the neocortex. Previous ...
rec_pub_19634928-sleep-selectively-enhances-hippocampus-dependent-memory-mice.htm

Blockade of ethanol reward by the kappa opioid receptor agonist U50,488H.

30 Jul 2009 Alcoholism is a pervasive social problem, and thus understanding factors that regulate alcohol (ethanol) reward is important for designing effective therapies. One putative regulatory system includes the kappa opioid receptor (KOR) and its ...
rec_pub_19671462-blockade-ethanol-reward-kappa-opioid-receptor-agonist-u50-488h.htm

Opioid antagonists block the acquisition of ethanol-mediated conditioned tactile preference in infant rats.

30 Jul 2009 It has been difficult to find conditioned preference for tactile cues paired with ethanol intoxication in rats. Toward understanding the ontogeny of ethanol reinforcement, we aimed at establishing a simple and reliable procedure for (1) assessing ...
rec_pub_19671461-opioid-antagonists-block-acquisition-ethanol-mediated-conditioned.htm

Overshadowing and CS duration: counteraction and a reexamination of the role of within-compound associations in cue competition.

30 Jul 2009 In the present experiments, we examined the role of within-compound associations in the interaction of the overshadowing procedure with conditioned stimulus (CS) duration, using a conditioned suppression procedure with rats. In Experiment 1, we ...
rec_pub_19542092-overshadowing-cs-duration-counteraction-reexamination-role-compound.htm

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