Potentiation of the effects of raclopride on sucrose consumption by the 5-HT2 antagonist ritanserin.

abstract：:The conditioned place preference technique was used to assess the affective properties of the direct dopamine D1 agonist, SKF38393, and the direct D2 agonist, LY171555 (quinpirole). A three compartment apparatus was used: the animals' pre-experimental preference for the two choice compartments was equal and, within ea...

journal_title：Psychopharmacology

authors： White NM,Packard MG,Hiroi N

更新日期：1991-01-01 00:00:00

abstract：BACKGROUND AND RATIONALE:Despite the popularity of polysubstance abuse among recreational methylendioxymethamphetamine (MDMA) users, relatively few controlled experimental studies have documented the neurobehavioral effects of MDMA in combination with other abused substances. OBJECTIVE:In this study, the combined acut...

journal_title：Psychopharmacology

authors： Panos JJ,Baker LE

更新日期：2010-03-01 00:00:00

abstract：:Chlordiazepoxide (5 and 10 mg/kg) and diazepam (2.5 mg/kg) reduced the latency to eat and enhanced feeding response to familiar food in a food-preference test. The increased feeding response resulted from an increased frequency of individual eating episodes (bouts) without significant change in the episode duration. E...

journal_title：Psychopharmacology

authors： Cooper SJ

更新日期：1980-01-01 00:00:00

abstract：:Paradoxical sleep (PS) in the rat, cat and mouse is preceded and sometimes followed by a short-lasting intermediate stage (IS) characterized by high amplitude cortical spindles and low frequency theta rhythm. This stage, which is mimicked by an intercollicular transection, is massively extended at the expense of PS by...

journal_title：Psychopharmacology

authors： Arnaud C,Gauthier P,Gottesmann C

更新日期：1994-11-01 00:00:00

abstract：RATIONALE:There is a close relationship between arousal and pupil diameter, decrease in the level of arousal being accompanied by constriction of the pupil (miosis), probably reflecting the attenuation of sympathetic outflow as sedation sets in. Paradoxically, sedation induced by benzodiazepines is not accompanied by m...

journal_title：Psychopharmacology

authors： Hou RH,Samuels ER,Langley RW,Szabadi E,Bradshaw CM

更新日期：2007-11-01 00:00:00

abstract：:The peripheral BDZ receptor ligand Ro 5-4864 was administered to rabbits in doses ranging from 0.2 to 7 mg/kg IV. Changes in electrocortical activity appeared within 1 min after administration, characterized by trains of slow waves in the posterior sensorimotor and optic cortices (0.6-2 mg/kg) and by grand mal seizure...

journal_title：Psychopharmacology

authors： Massotti M,Lucantoni D

更新日期：1986-01-01 00:00:00

abstract：INTRODUCTION:Alcohol has been shown to increase smoking urges and smoking behavior. However, alcohol's effects on specific components of smoking behavior for nicotine versus non-nicotine factors and potential sex differences in this response have not been investigated. METHODS:Forty-two young male and female non-depen...

journal_title：Psychopharmacology

authors： King A,McNamara P,Conrad M,Cao D

更新日期：2009-11-01 00:00:00

abstract：RATIONALE:Major depression is a chronic disabling disorder, often preceded by stress. Despite emerging clinical interest in mechanisms perpetuating episodes of depression and/or establishing increased vulnerability for relapse, little attention has been paid to address these aspects in experimental models. Here, we stu...

journal_title：Psychopharmacology

authors： Elizalde N,García-García AL,Totterdell S,Gendive N,Venzala E,Ramirez MJ,Del Rio J,Tordera RM

更新日期：2010-06-01 00:00:00

abstract：:The existence of cyclical (circadian) variations in lithium toxicity in mice was determined. Mice, standardized to a light-dark cycle, were injected with lithium chloride (940 mg/kg) at one of six times (20:00, 24:00, 4:00, 8:00, 12:00, and 16:00) and subsequently observed for mortality over 28 h. A significant (P les...

journal_title：Psychopharmacology

authors： Hawkins R,Kripke DF,Janowsky DS

更新日期：1978-01-31 00:00:00

abstract：:Chronic administration of the pre-synaptic alpha-adrenoreceptor agonist clonidine decreases the concentration of the extra-neuronal metabolite of noradrenaline normetanephrine in the amygdaloid cortex and increases it in the mid-brain. Conversely, blockade of these pre-synaptic receptors by yohimbine increases the nor...

journal_title：Psychopharmacology

authors： Fludder JM,Leonard BE

更新日期：1979-09-01 00:00:00

abstract：RATIONALE:Recent studies have shown that pharmacological inhibition of the 12-lipoxygenase pathway selectively blocks opioid inhibition of GABAergic synaptic currents. A similar mechanism has been shown for the regulation of glutamate release in the ventral tegmental area (VTA) during acute withdrawal from morphine, al...

journal_title：Psychopharmacology

authors： Walters CL,Wang BC,Godfrey M,Sun D,Funk CD,Blendy JA

更新日期：2003-11-01 00:00:00

abstract：:Chronic tolerance to ethanol-induced sleep, motor impairment (moving belt test), and hypothermia were examined in two lines of rats that had been selectively bred for their different initial sensitivities to ethanol. In agreement with previous work (Mayer et al. 1982, 1983), the least-affected (LA) rats were found to ...

journal_title：Psychopharmacology

authors： Khanna JM,Lê AD,LeBlanc AE,Shah G

更新日期：1985-01-01 00:00:00

abstract：RATIONALE:Neuromedin-U (NmU) is an agonist at NMU1R and NMU2R. The brain distribution of NmU and its receptors, in particular NMU2R, suggests widespread central roles for NmU. In agreement, centrally administered NmU affects feeding behaviour, energy expenditure and pituitary output. Further central nervous system (CNS...

journal_title：Psychopharmacology

authors： Gartlon J,Szekeres P,Pullen M,Sarau HM,Aiyar N,Shabon U,Michalovich D,Steplewski K,Ellis C,Elshourbagy N,Duxon M,Ashmeade TE,Harrison DC,Murdock P,Wilson S,Ennaceur A,Atkins A,Heidbreder C,Hagan JJ,Hunter AJ,Jones

更新日期：2004-12-01 00:00:00

abstract：:Four benzodiazepine tranquilizers have been tested, alone or in combination with scopolamine, on the spontaneous locomotor activity of BALB/c mice. Scopolamine-induced locomotor stimulation was enhanced by chlordiazepoxide, diazepam, and medazepam, but not by bromazepam. These effects are similar to those exerted by t...

journal_title：Psychopharmacology

authors： Sansone M

更新日期：1980-01-01 00:00:00

abstract：BACKGROUND AND RATIONALE:More than two decades ago, Wise proposed his "anhedonia hypothesis" to explain the role of dopamine in motivated behaviors. The hypothesis posits that dopamine mediates the pleasure experienced by reward obtainment. However, some experimental findings have contested this hypothesis and several ...

journal_title：Psychopharmacology

authors： Barbano MF,Cador M

更新日期：2007-04-01 00:00:00

abstract：:In order to study the role of dopamine (DA) in the regulation of seizure mechanisms in man, a non-emetic dose of apomorphine, a direct stimulant of DA receptors, was administered to eight patients effected by different types of epilepsy. The EEG changes induced by apomorphine administration in comparison to those elic...

journal_title：Psychopharmacology

authors： Del Zompo M,Tocco F,Marrosu F,Passino N,Corsini GU

更新日期：1983-01-01 00:00:00

abstract：RATIONALE:Prepulse inhibition (PPI) represents a normal sensorimotor gating response that is typically impaired in schizophrenic patients. It is known that cannabinoid CB1 agonists reduce sensorimotor gating in rats, suggesting that the CB1 receptor and the cannabinoid system are involved in sensorimotor gating. OBJEC...

journal_title：Psychopharmacology

authors： Fernandez-Espejo E,Galan-Rodriguez B

更新日期：2004-09-01 00:00:00

abstract：:Several studies have demonstrated a paradoxical form of antinociception induced by the repeated administration of opioid antagonists accompanied by exposure to a painful stimulus. The underlying mechanism of this naloxone-induced antinociception (NIA) is still unknown, but the results of several studies suggest that i...

journal_title：Psychopharmacology

authors： Walker MJ,Poulos CX,Le AD

更新日期：1994-01-01 00:00:00

abstract：RATIONALE:The metabotropic glutamate (mGlu5) receptor subtype 5 antagonist MPEP attenuates self-administration of numerous drugs of abuse. OBJECTIVES:The purpose of the present study was to explore whether MPEP-induced decreases in nicotine and cocaine self-administration reflect attenuation of the reinforcing and inc...

journal_title：Psychopharmacology

authors： Paterson NE,Markou A

更新日期：2005-04-01 00:00:00

abstract：RATIONALE:(1S,3aS)-8-(2,3,3,4,5,6-hexahydro-1H-phenalen-1-yl)-1-phenyl-1,3,8-triazaspiro[4.5]decan-4-one (Ro 64-6198), a non-peptidic agonist for the opioid receptor-like1 (ORL1) receptor, exhibits anxiolytic properties in stressful conditions. OBJECTIVE:The present study was aimed at evaluating whether activation of ...

journal_title：Psychopharmacology

authors： Ciccocioppo R,Biondini M,Antonelli L,Wichmann J,Jenck F,Massi M

更新日期：2002-05-01 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:The phenomenon of sensitization has been theoretically implicated in mediating various aspects of drug addiction. Recent dose-response studies demonstrated that pretreatment with the putative antiaddictive agent, ibogaine (IBO), and a synthetic iboga alkaloid congener, 18-methoxycoronaridine (18-MC), increase...

journal_title：Psychopharmacology

authors： Szumlinski KK,Balogun MY,Maisonneuve IM,Glick SD

更新日期：2000-08-01 00:00:00

abstract：:Exposure to 10 min of footshock stress (1 mA; 0.5 s on, with a mean off period of 40 s) reinstated heroin-seeking behavior in heroin-experienced, drug-free rats after many sessions of extinction and up to 6 weeks after last exposure to heroin. In reinstating the behavior, the footshock mimicked the effect of a non-con...

journal_title：Psychopharmacology

authors： Shaham Y,Stewart J

更新日期：1995-06-01 00:00:00

abstract：:Administration to mice of harmaline (100 mg/kg SC) resulted in a greater than two-fold increase in cyclic GMP in the cerebellum 15 min later. This response was inhibited by pretreatment 5 min before the harmaline with pentobarbital (ED50 6.5 mg/kg), chlormethiazole (ED50 10.4 mg/kg) and dizocilpine (ED50 0.5 mg/kg). H...

journal_title：Psychopharmacology

authors： Cross AJ,Misra A,Sandilands A,Taylor MJ,Green AR

更新日期：1993-01-01 00:00:00

abstract：:Dopaminergic behavioral supersensitivity may be induced by chronic treatment with either dopaminergic agonists or antagonists. We demonstrate that the development of agonist-induced supersensitivity is resistant to chronic lithium exposure. Furthermore, chronic lithium alone enhances the stereotypic response to acute ...

journal_title：Psychopharmacology

authors： Rubin EH,Wooten GF

更新日期：1984-01-01 00:00:00

abstract：RATIONALE:In Koriat's accessibility model (Koriat, Psychol Rev, 100:609-639, 1993; Koriat, J Exp Psychol Gen, 124:311-333, 1995), when a person fails to recall a required target, he or she can nevertheless provide some partial information about the target. Moreover, individuals are able to provide feeling-of-knowing (F...

journal_title：Psychopharmacology

authors： Izaute M,Bacon E

更新日期：2006-11-01 00:00:00

abstract：RATIONALE:Interrelationships between the discriminative stimulus and reinforcing properties of psychoactive drugs and the way in which they may interact to control drug intake are unclear. Studies have shown that drug history can influence the expression of drug-produced behavioral effects. OBJECTIVE:The present study...

journal_title：Psychopharmacology

authors： Childs E,Shoaib M,Stolerman IP

更新日期：2006-06-01 00:00:00

abstract：:Administration of 10 mg/kg TRH to mice was found to reduce the sleep and hypothermia induced by 4.7 g/kg ethanol. However, TRH did not reduce the sleep of mice that were given gamma-hydroxybutyric acid (GHBA), baclophen, or aminooxyacetic acid (AOAA) in combination with 3 g/kg/ ethanol. TRH also failed to reverse the ...

journal_title：Psychopharmacology

authors： Cott J,Engel J

更新日期：1977-04-29 00:00:00

abstract：RATIONALE:Several lines of evidence have indicated that the central histaminergic system might be involved in learning and memory OBJECTIVES:The aim of the present study was to ascertain the impact on memory processes of putative histaminergic-cholinergic interactions in the nucleus basalis magnocellularis (NBM) of th...

journal_title：Psychopharmacology

authors： Orsetti M,Ferretti C,Gamalero R,Ghi P

更新日期：2002-01-01 00:00:00

abstract：:This study was designed to compare the therapeutic and adverse effects of tranylcypromine (a monoamine oxidase inhibitor), nortriptyline (a tricyclic antidepressant), and placebo. A total of 122 depressed outpatients randomly assigned to double-blind treatment with one of these agents completed the 4-week protocol. Tr...

journal_title：Psychopharmacology

authors： White K,Razani J,Cadow B,Gelfand R,Palmer R,Simpson G,Sloane RB

更新日期：1984-01-01 00:00:00