Taste cues control ethanol-induced conditioned taste avoidance but not conditioned toleranceSpringer Science and Business Media LLC - Tập 19 - Trang 64-69 - 2013
Christopher L. Cunningham, Cheryl L. Hallett
This experiment tested the ability of taste cues to serve as the conditioned stimulus (CS) for conditioned tolerance to ethanol hypothermia. Rats were exposed to a differential Pavlovian conditioning procedure in which the manual oral infusion of one flavor solution was consistently followed by injection of ethanol (2.25 g/kg), whereas exposure to another flavor was followed by injection of saline...... hiện toàn bộ
Sex differences in radial maze performance: Influence of rearing environment and room cuesSpringer Science and Business Media LLC - Tập 24 - Trang 33-37 - 2013
Penny Seymoure, Hui Dou, Janice M. Juraska
There have been conflicting reports on whether or not male rats outperform females in the radial arm maze. Three factors—rearing environment, room cues, and whether all of the maze arms are baited with food—may differentially influence the performance of male and female rats. In the present experiment, littermate male and female hooded rats were reared either in same-sex groups in a complex enviro...... hiện toàn bộ
Eyeblink cross-habituation between tactile and acoustic systems in humansSpringer Science and Business Media LLC - Tập 25 - Trang 66-70 - 2013
William A. Dycus, Alice Schade Powers
To study cross-habituation of the eyeblink reflex in humans, subjects were repetitively exposed to a blink-eliciting stimulus in one modality and then shifted to a second stimulus in a different modality. One group of subjects began with a tactile stimulus and switched after 40 trials to an acoustic stimulus. The other began with the acoustic and switched to the tactile. No evidence of cross-habit...... hiện toàn bộ
A single dose of nicotine proactively enhances the partial reinforcement extinction effect in the ratSpringer Science and Business Media LLC - Tập 24 - Trang 136-146 - 2013
Grigory Grigoryan, Jeffrey A. Gray
On the basis of previous data showing (1) the dependence of the partial reinforcement extinction effect (PREE) upon the release of noradrenaline (NA) within the hippocampal formation and (2) a long-term proactive increase in intrahippocampal NA release after systemic treatment with nicotine, it was predicted that this compound would proactively enhance the PREE. The PREE was measured in rats as ru...... hiện toàn bộ
Functional dissociation between dorsal and ventral regions of the medial prefrontal cortex in ratsSpringer Science and Business Media LLC - Tập 28 - Trang 248-260 - 2013
Pascale Gisquet-Verrier, Gordon Winocur, Benoît Delatour
In order to investigate the respective roles of dorsal and ventral parts of the medial prefrontal cortex (mPFC) on a delayed alternation task, the acquisition of which is disrupted by large mPFC lesions (Winocur, 1991), rats with circumscribed lesions to the anterior cingulate (ACd) or the prelimbicinfralimbic (PL-IL) cortex were compared. As was predicted, ACd lesions severely impaired performanc...... hiện toàn bộ
Long-term effects of food deprivation: II. Impact on morphine reactivitySpringer Science and Business Media LLC - Tập 20 - Trang 85-91 - 2013
Mandy K. Biles, Paul A. Illich, James W. Grau
Exposure to a series of inescapable shocks elicits a hormonally mediated opioid hypoalgesia in rats. In addition, it has a long-term effect on the opioid system: it increases reactivity to a low dose of morphine. Here we looked at whether another manipulation that elicits a hormonally mediated opioid hypoalgesia—food deprivation—has a similar sensitizing effect. Subjects were placed on a restricte...... hiện toàn bộ