Inhibition of shaking movements in rats by central administration of cholinergic and adrenergic agents.

abstract：RATIONALE:Contemporary animal models of cocaine addiction focus on increasing the amount of drug consumption to produce addiction-like behavior. However, another critical factor is the temporal pattern of consumption, which in humans is characterized by intermittency, both within and between bouts of use. OBJECTIVE:To...

journal_title：Psychopharmacology

authors： Kawa AB,Bentzley BS,Robinson TE

更新日期：2016-10-01 00:00:00

abstract：RATIONAL:Prefrontal cortex (PFC) and dorsal striatum are part of the neural circuit critical for executive attention. The relationship between 5-HT and aspects of attention and executive control is complex depending on experimental conditions and the level of activation of different 5-HT receptors within the nuclei of ...

journal_title：Psychopharmacology

authors： Agnoli L,Carli M

更新日期：2012-01-01 00:00:00

abstract：RATIONALE:The emergence of the consumption of highly potent synthetic cannabinoid receptor agonists (spice drugs) that produce important neurological symptoms has prompted the research on the consequences of acute and chronic use of these new psychoactive substances. Most studies on cannabinoid dependence have been per...

journal_title：Psychopharmacology

authors： Serrano A,Vadas E,Ferrer B,Bilbao A,Granado N,Suárez J,Pavon FJ,Moratalla R,Rodríguez de Fonseca F

更新日期：2021-02-01 00:00:00

abstract：:After publication of this paper, the authors determined an error in the calculation of the norepinephrine standard concentrations for the HPLC calibration curves. ...

journal_title：Psychopharmacology

authors： Shnitko TA,Taylor SC,Stringfield SJ,Zandy SL,Cofresí RU,Doherty JM,Lynch WB,Boettiger CA,Gonzales RA,Robinson DL

更新日期：2018-09-01 00:00:00

abstract：:The cognitive deficits, particularly memory impairment, observed in association with organic brain damage caused by chronic alcohol ingestion, are consistent with the profile of benzodiazepine-induced amnesia. This study examined the cognitive capabilities of a group of heavy social drinkers (n = 11) and a group of lo...

journal_title：Psychopharmacology

authors： Nichols JM,Martin F,Kirkby KC

更新日期：1993-01-01 00:00:00

abstract：RATIONALE:It is important to study age-related differences that may put adolescents at risk for alcohol-related problems. Adolescents seem less sensitive to the aversive effects of ethanol than adults. Less is known of appetitive effects of ethanol and stress modulation of these effects. OBJECTIVES:This study aims to ...

journal_title：Psychopharmacology

authors： Acevedo MB,Pautassi RM,Spear NE,Spear LP

更新日期：2013-12-01 00:00:00

abstract：:We have previously obtained evidence that the mesoamygdaloid dopamine projection modulates the acquisition of a conditioned response (CR) elicited by presentation of a conditioned stimulus (CS) predicting the availability of a natural (sucrose) reward. This property was found to be dependent upon D3, but not D1 or D2,...

journal_title：Psychopharmacology

authors： Hitchcott PK,Phillips GD

更新日期：1998-12-01 00:00:00

abstract：:Nicotine (0.16--0.50 mg/kg, SC) was found to exert a potent antinociceptive action on thermal stimuli as measured by the tail-flick test. This antinociceptive action of nicotine could be blocked by centrally active nicotinic or muscarinic blockers implicating both classes of cholinergic receptors in this effect. Quate...

journal_title：Psychopharmacology

authors： Sahley TL,Berntson GG

更新日期：1979-11-01 00:00:00

abstract：:Chronic oral administration of cannabis extract to rats (daily delta 9-tetrahydrocannabinol dose 20 mg/kg) was examined in three experiments for its residual effect on radial-arm maze learning following a 1-month drug-free period. Learning a simple eight-arm maze was significantly impaired in rats treated for either 6...

journal_title：Psychopharmacology

authors： Stiglick A,Kalant H

更新日期：1982-01-01 00:00:00

abstract：RATIONALE:Cocaine and opioids are often co-abused. As yet, however, there is no clear evidence that the drugs interact to make the mixture a more effective reinforcer. OBJECTIVE:The present study examined the relative reinforcing potency and maximum effectiveness of the cocaine-opioid combination in monkeys given a ch...

journal_title：Psychopharmacology

authors： Freeman KB,Woolverton WL

更新日期：2011-05-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:Functional (pharmacodynamic) ethanol tolerance can be evidenced within a single session of exposure to ethanol (acute or within-session tolerance), or after repeated ethanol exposures (chronic or between-session tolerance). To investigate whether acute and chronic tolerance to ethanol are inter...

journal_title：Psychopharmacology

authors： Wu PH,Tabakoff B,Szabó G,Hoffman PL

更新日期：2001-06-01 00:00:00

abstract：:Animals responding for biphasic square wave stimulation to the VTA were treated for 26 days with a low dose (0.07 mg/kg) of the neuroleptic haloperidol and tested at 1 h post-injection. Initially the drug induced a pronounced lateral displacement of the baseline rate-intensity function, concomitant with a depression i...

journal_title：Psychopharmacology

authors： Lynch MR,Carey RJ

更新日期：1990-01-01 00:00:00

abstract：:Psychopharmacological studies using caffeinated beverages or caffeine have rarely considered temporal effects on psychological and physiological function or the specific contribution of caffeine, hot water, or beverage type to the observed effects. The effect of 400 ml hot tea, coffee, and water consumption on systoli...

journal_title：Psychopharmacology

authors： Quinlan P,Lane J,Aspinall L

更新日期：1997-11-01 00:00:00

abstract：:Diazepam-sensitive (DS) and -resistant (DR) mice were selectively bred for increased and reduced sensitivity to the ataxic effects of diazepam (40 mg/kg). Other response differences between DS and DR mice may reflect pleiotropic effects of the genes fixed during their selection. These mice were tested for their sensit...

journal_title：Psychopharmacology

authors： Phillips TJ,Gallaher EJ

更新日期：1992-01-01 00:00:00

abstract：:Muscimol, a structural analog of GABA, significantly potentiated pilocarpine-induced analgesia in rats, but failed to alter pilocarpine-induced catalepsy. It also failed to affect pilocarpine-elicited increase in homovanillic acid levels in the striatum. These findings suggest that the potentiation of pilocarpine-indu...

journal_title：Psychopharmacology

authors： Naik SR,Kelkar MR,Amladi SR,Sheth UK

更新日期：1981-01-01 00:00:00

abstract：:Rats treated weekly with cumulative doses (1-100 mg/kg, IP) of naltrexone develop an enhanced sensitivity to the operant response-rate decreasing effect of naltrexone. In the present experiment the pharmacological specificity of that enhanced sensitivity was determined by testing a variety of drugs for cross-sensitivi...

journal_title：Psychopharmacology

authors： Schindler CW,Goldberg SR,Katz JL

更新日期：1993-01-01 00:00:00

abstract：:In squirrel monkeys trained to discriminate between two tones, morphine consistently increased the percent of response failures during tone periods; however, it had no consistent effect on the percent correct responses. In contrast, scopolamine decreased percent correct responses as well as increasing percent response...

journal_title：Psychopharmacology

authors： Milar KS,Dykstra LA

更新日期：1985-01-01 00:00:00

abstract：:The effect of lithium on serotonin (5-HT)-mediated responses in the brain was assessed by measuring changes in the prolactin (PRL) and growth hormone (GH) responses to L-tryptophan (LTP) in eight normal subjects. On the 4th day of lithium treatment the PRL responses were significantly enhanced, and this enhancement wa...

journal_title：Psychopharmacology

authors： Glue PW,Cowen PJ,Nutt DJ,Kolakowska T,Grahame-Smith DG

更新日期：1986-01-01 00:00:00

abstract：:Rats were trained to self-administer cocaine in 1-h sessions on a fixed ratio 5 (FR5) schedule of reinforcement. Acquisition was carried out at a unit dose of 0.3 mg/kg and responding was then stabilized at cocaine doses of 0.1, 0.3, and 1.0 mg/kg/infusion. Pretreatments with naltrexone (0.1-10 mg/kg, SC) 20 min prior...

journal_title：Psychopharmacology

authors： Corrigall WA,Coen KM

更新日期：1991-01-01 00:00:00

abstract：RATIONALE:Negative mood states are characterized by both stress hormone dysregulation and serotonergic dysfunction, reflected by altered thalamic serotonin transporter (5-HTT) levels. However, so far, no study examined the individual association between cortisol response and cerebral in vivo 5-HTT levels in patients su...

journal_title：Psychopharmacology

authors： Reimold M,Knobel A,Rapp MA,Batra A,Wiedemann K,Ströhle A,Zimmer A,Schönknecht P,Smolka MN,Weinberger DR,Goldman D,Machulla HJ,Bares R,Heinz A

更新日期：2011-02-01 00:00:00

abstract：RATIONALE:Repeated administrations of ethanol induce a progressive and enduring increase in its locomotor stimulant effects, a phenomenon termed behavioral sensitization that has not been systematically characterized. OBJECTIVE:The aim of the present studies was to characterize the development and expression of ethano...

journal_title：Psychopharmacology

authors： Didone V,Quoilin C,Tirelli E,Quertemont E

更新日期：2008-12-01 00:00:00

abstract：:Dose-dependent effects of intravenously administered lorazepam on haemodynamic fluctuations were studied by means of spectral analysis, in order to elucidate sympathetic and parasympathetic components in cardiovascular control during situations of rest and mental stress after benzodiazepine administration. In a double...

journal_title：Psychopharmacology

authors： Tulen JH,Mulder G,Pepplinkhuizen L,Man in 't Veld AJ,van Steenis HG,Moleman P

更新日期：1994-02-01 00:00:00

abstract：RATIONALE:Nicotine and other agonists of nicotinic cholinergic receptors (nAChR) have been shown to improve performance in specific memory domains in rodents and monkeys. Such beneficial effects are observed in preclinical models of age-related cognitive decline, stimulating interest in nAChR ligands as possible therap...

journal_title：Psychopharmacology

authors： Katner SN,Davis SA,Kirsten AJ,Taffe MA

更新日期：2004-09-01 00:00:00

abstract：:The effects of dietary caffeine and the amount and palatability of food on the acquisition of cocaine (0.2 mg/kg) self-administration were examined. Using an autoshaping procedure, seven groups of 13 rats each were trained to press a lever resulting in a cocaine (0.2 mg/kg infusion under a fixed-ratio 1 (FR 1) schedul...

journal_title：Psychopharmacology

authors： Carroll ME,Lac ST

更新日期：1998-05-01 00:00:00

abstract：:Effects of two dosages of rubidium chloride on exploration, locomotion, rearing and immobility were assessed for male and female rats in an exploration box and an open field. In contrast to previous findings, rubidium was found to decrease locomotion and rearing in the exploratory box, and also to decrease locomotion ...

journal_title：Psychopharmacology

authors： Syme GJ,Syme LA

更新日期：1979-03-22 00:00:00

abstract：:The aim of the present study was to investigate the locomotor stimulant effects of the atypical antipsychotic agent, olanzapine, in mice depleted of their dopamine by reserpine and alpha-methyl-DL-p-tyrosine pretreatment. Olanzapine (0.5, 1 and 2 mg/kg) dose-dependently increased locomotor activity, which was complete...

journal_title：Psychopharmacology

authors： Ninan I,Kulkarni SK

更新日期：1999-02-01 00:00:00

abstract：RATIONALE:Most adult smokers start smoking during their adolescence. This adolescent initiation may be due to multiple factors, but little evidence is available regarding whether their brains are differentially sensitive to the addictive effects of nicotine during adolescence. OBJECTIVE:To test the hypothesis that ado...

journal_title：Psychopharmacology

authors： Belluzzi JD,Lee AG,Oliff HS,Leslie FM

更新日期：2004-07-01 00:00:00

abstract：RATIONALE:Kratom is proposed to exhibit therapeutic potential as an opium substitute, but little is known about its dependence-producing profile, particularly of its main psychoactive compound, mitragynine (MG). OBJECTIVES:This study examined the dependence-producing effects of MG using operant-scheduled behaviour in ...

journal_title：Psychopharmacology

authors： Harun N,Johari IS,Mansor SM,Shoaib M

更新日期：2020-03-01 00:00:00

abstract：RATIONALE:Ketamine, a well-known general dissociative anesthetic agent that is a non-competitive antagonist of the N-methyl-D-aspartate receptor, perturbs the perception of elapsed time and the expectation of upcoming events. OBJECTIVE:The objective of this study was to determine the influence of ketamine on temporal ...

journal_title：Psychopharmacology

authors： Brulé S,Herlin B,Pouget P,Missal M

更新日期：2021-02-01 00:00:00

abstract：RATIONALE:Robust intravenous (i.v.) nicotine self-administration (SA) in rats has been reported by several laboratories, including our own, using fixed ratio (FR) schedules of reinforcement. Studies on other drugs of abuse, however, suggest that progressive ratio (PR) schedules may provide additional information not ga...

journal_title：Psychopharmacology

authors： Donny EC,Caggiula AR,Mielke MM,Booth S,Gharib MA,Hoffman A,Maldovan V,Shupenko C,McCallum SE

更新日期：1999-11-01 00:00:00