The discriminative stimulus properties of cocaine: effects of microinfusion of cocaine, a 5-HT1A agonist or antagonist, into the ventral tegmental area.

abstract：RATIONALE:Cortisol levels rise sharply immediately after electroconvulsive therapy (ECT); the resultant stimulation of steroid receptors in the hippocampus may be beneficial or harmful to cognition, depending on the magnitude of the stimulation. Steroid mechanisms may therefore modulate ECT-induced amnesia. OBJECTIVES...

journal_title：Psychopharmacology

authors： Nagaraja N,Andrade C,Sudha S,Madan Singh N,Chandra JS,Venkataraman BV

更新日期：2007-01-01 00:00:00

abstract：RATIONALE:Animal models aimed to mimic mania have in common the lack of genuine affective parameters. Although rodent amphetamine-induced hyperlocomotion is a frequently used behavioral model of mania, locomotor activity is a rather unspecific target for developing new pharmacological therapies, and does not necessaril...

journal_title：Psychopharmacology

authors： Pereira M,Andreatini R,Schwarting RK,Brenes JC

更新日期：2014-07-01 00:00:00

abstract：:The effects of flurazepam (0.0, 0.5, and 3.0 mg/kg) on methylphenidate-induced increases in stereotypy, gnawing, sniffing, and locomotion were evaluated in Swiss-Webster mice in daytime and nighttime experiments. Methylphenidate (50 mg/kg) increased overall stereotypy and stereotyped gnawing behavior; two doses of met...

journal_title：Psychopharmacology

authors： Risch C,Kripke D,Janowsky D

更新日期：1980-01-01 00:00:00

abstract：RATIONALE:Several antipsychotic drugs are metabolised by the polymorphic cytochrome P(450) CYP2D6. The impact of the polymorphism on the plasma levels and the occurrence of side effects have not been clearly established. OBJECTIVE:To investigate the impact of the CYP2D6 polymorphism on the steady-state plasma concentr...

journal_title：Psychopharmacology

authors： Jaanson P,Marandi T,Kiivet RA,Vasar V,Vään S,Svensson JO,Dahl ML

更新日期：2002-06-01 00:00:00

abstract：:This study examined the possibility that amphetamine-induced stereotypy and facilitation of memory consolidation are both mediated by amphetamine's stimulation of dopaminergic activity in the caudate nucleus. In the first experiment, rats were given pairings of a tone and a shock followed by SC amphetamine (2 mg/kg). ...

journal_title：Psychopharmacology

authors： Carr GD,White NM

更新日期：1984-01-01 00:00:00

abstract：:Serotonergic mechanisms have been implicated in the pathophysiology of depression and in the neuropharmacology of antidepressant treatment. One measure of central serotonergic function is the prolactin (PRL) response to IV L-tryptophan (L-TRP). We used the L-TRP test to assess the role of serotonin in the mechanism of...

journal_title：Psychopharmacology

authors： McCance-Katz E,Price LH,Charney DS,Heninger GR

更新日期：1992-01-01 00:00:00

abstract：RATIONALE:Marijuana and alcohol, when used separately and in combination, contribute to automobile accidents and failed sobriety tests of standing balance. However, the extent to which the drugs have additive effects on both of these measures is unknown. OBJECTIVES:This study was designed to compare directly the separ...

journal_title：Psychopharmacology

authors： Liguori A,Gatto CP,Jarrett DB

更新日期：2002-10-01 00:00:00

abstract：:Preclinical and clinical research supports a role for neuroactive steroids in the pathophysiology of posttraumatic stress disorder (PTSD). We investigated ganaxolone (a synthetic 3β-methylated derivative of allopregnanolone, a GABAergic neuroactive steroid) for treatment of PTSD in a proof-of-concept, multisite, doubl...

journal_title：Psychopharmacology

authors： Rasmusson AM,Marx CE,Jain S,Farfel GM,Tsai J,Sun X,Geracioti TD,Hamner MB,Lohr J,Rosse R,Summerall L,Naylor JC,Cusin C,Lang AJ,Raman R,Stein MB

更新日期：2017-08-01 00:00:00

abstract：OBJECTIVE:Several lines of evidence suggest that brain-derived neurotrophic factor (BDNF) plays a critical role in activity-dependent neuroplasticity underlying learning and memory in the hippocampus. Schizophrenia has a range of cognitive deficits that may evolve from decreased BDNF, and this study examines this assoc...

journal_title：Psychopharmacology

authors： Zhang XY,Liang J,Chen DC,Xiu MH,Yang FD,Kosten TA,Kosten TR

更新日期：2012-07-01 00:00:00

abstract：:Intact male and ovariectomized female rats were trained to lever press under a random ratio (RR) schedule of food reinforcement. Effects of different doses of pentobarbital (1-16 mg/kg) and progesterone (10-80 mg/kg) on response output were studied. Low doses of pentobarbital increased responding, high doses decreased...

journal_title：Psychopharmacology

authors： Heinsbroek RP,van Haaren F,Zantvoord F,van de Poll NE

更新日期：1987-01-01 00:00:00

abstract：:In the present pilot study, an attempt was made to shape and maintain cigarette smoking behavior in rhesus monkeys both with and without the simultaneous use of other reinforcers. Initially, 14 monkeys were trained to suck air and puff on cigarettes using sweetened liquid reinforcer. After smoking had been established...

journal_title：Psychopharmacology

authors： Ando K,Yanagita T

更新日期：1981-01-01 00:00:00

abstract：:In order to study experimental alcohol intake that leads to heightened aggression, we established ethanol self-administration in aggressive rats. The focus was on low doses of self-administered ethanol and to assess their effects on aggressive behavior in resident rats, using a limited access paradigm followed by a 5-...

journal_title：Psychopharmacology

authors： van Erp AM,Miczek KA

更新日期：1997-06-01 00:00:00

abstract：:The effects of clozapine (CLOZ) upon acquired schedule-induced polydipsia in rats were compared to the effects of the dopamine (DA) D1 antagonist SCH 23390 (SCH) and the DA D2 antagonist raclopride (RAC). All three compounds suppressed water consumption, but only SCH and RAC decreased drinking efficiency. SCH was the ...

journal_title：Psychopharmacology

authors： Didriksen M,Olsen GM,Christensen AV

更新日期：1993-01-01 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：:Dopaminergic involvement in the regulation of operant behavior was examined by monitoring responding after administration of different dopaminergic agonists. A chain schedule of reinforcement was used to classify the effects of these agonists in long-tailed macaques (Macaca fascicularis). The schedule included the fol...

journal_title：Psychopharmacology

authors： Dooley DJ,Bowden DM

更新日期：1983-01-01 00:00:00

abstract：:Sixteen healthy volunteers were administered midazolam followed by placebo or the benzodiazepine antagonist, flumazenil, in a double-blind, cross-over study. Flumazenil reversed midazolam-induced sedation on the subjective, psychophysiological and motor indices used. In contrast, there was little evidence of any rever...

journal_title：Psychopharmacology

authors： Curran HV,Birch B

更新日期：1991-01-01 00:00:00

abstract：:Phencyclidine (PCP) and sigma ligands produce a typical excitatory behaviour in rats, characterized by circling and head- and body-weaving. Excitatory amino acid antagonists such as 2-amino 5-phosphonovaleric acid (AP5) or 3-(+/-)-2-carboxypiperazin-4-yl)propyl-l-phosphonic acid (CPP) also produce a PCP-like excitator...

journal_title：Psychopharmacology

authors： Sagratella S,Scotti de Carolis A,Pèzzola A,Popoli P

更新日期：1991-01-01 00:00:00

abstract：RATIONALE:Reductions in cue-induced craving and subjective response to drugs of abuse are commonly used as initial outcome measures when testing novel medications for the treatment of addiction. Yet neither the relationship between these two measures at the individual level nor the moderating effects of pharmacotherapi...

journal_title：Psychopharmacology

authors： Roche DJO,Worley MJ,Courtney KE,Bujarski S,London ED,Shoptaw S,Ray LA

更新日期：2017-07-01 00:00:00

abstract：:Prepulse inhibition (PPI) of an acoustic startle response is impaired in schizophrenics. PPI can also be studied in the rat, and is impaired by dopamine (DA) D2/3 receptor agonists such as apomorphine. This disruption is reversed by DA antagonists, leading to proposals that this approach may be a useful means to ident...

journal_title：Psychopharmacology

authors： Varty GB,Higgins GA

更新日期：1995-11-01 00:00:00

abstract：:First, it was confirmed that systemic injection of the neurotoxin 6-hydroxydopamine HBr (30 mg/kg IP) depleted noradrenaline levels in rat heart, but not centrally. Losses averaged 90% of control 1 day after injection, and 50% at 42 days. The same drug and dose was then administered to 50% of a group of rats which had...

journal_title：Psychopharmacology

authors： Salmon P,Stanford C,Gray JA

更新日期：1985-01-01 00:00:00

abstract：BACKGROUND:Several different animal models are currently used to research the neurodegenerative movement disorder Parkinson's disease (PD). RESULTS:Models based on the genetic deficits associated with a small percentage of sufferers demonstrate the pathological accumulation of alpha-synuclein characteristic of the dis...

journal_title：Psychopharmacology

authors： Lane E,Dunnett S

更新日期：2008-08-01 00:00:00

abstract：:Development of tolerance to neuroleptic compounds tested in the conditional avoidance model was investigated. Since tolerance may manifest itself by a diminished potency and/or a shortened duration of effect, the complete time course of effect was registered in these experiments. Rats were pretreated approximately 2 w...

journal_title：Psychopharmacology

authors： Danneskiold-Samsøoe P,Pedersen V

更新日期：1976-12-21 00:00:00

abstract：:There is a latency period of several weeks before the onset of clinical effect of antidepressant drugs. The detailed mechanisms underlying drug-induced adaptive neuronal changes are not known. To elucidate the involvement of changes in gene expression of candidate transcription factors, we treated rats for 21 days wit...

journal_title：Psychopharmacology

authors： Bjartmar L,Johansson IM,Marcusson J,Ross SB,Seckl JR,Olsson T

更新日期：2000-07-01 00:00:00

abstract：:The effects of 4 weeks of treatment with the selective monoamine oxidase (MAO) inhibiting antidepressant clorgyline and pargyline on the sleep of affectively disordered patients were studied. Both inhibitors resulted in near total suppression of REM sleep, a decrease in total sleep time, and an increase in the percent...

journal_title：Psychopharmacology

authors： Cohen RM,Pickar D,Garnett D,Lipper S,Gillin JC,Murphy DL

更新日期：1982-01-01 00:00:00

abstract：RATIONALE:The antidepressant nortriptyline is a second-line pharmacotherapy for smoking cessation. Given that there is limited preclinical data available on the effects of nortriptyline on responses to nicotine, the present study sought to evaluate its effects on the reinforcing, discriminative stimulus (DS) and aversi...

journal_title：Psychopharmacology

authors： Wing VC,Shoaib M

更新日期：2012-02-01 00:00:00

abstract：:The effects of different doses (0.03, 0.06, 0.12, 0.25, 1.0, 2.0, 4.0, and 8.0 mg/kg body weight) of 5-methoxy-N,N-dimethyltryptamine (5-MeODMT) were tested on the acoustic startle reflex in rats. Beginning at 0.12 mg/kg, 5-MeODMT increased startle monotonically up to the highest dose used. 5-MeODMT still increased st...

journal_title：Psychopharmacology

authors： Davis M,Astrachan DI,Gendelman PM,Gendelman DS

更新日期：1980-01-01 00:00:00

abstract：RATIONALE:Increased anxiety is a characteristic of the acute ethanol withdrawal syndrome. Repeated exposure of rats to withdrawal from chronic ethanol increases sensitivity to seizures. OBJECTIVES:We investigated whether repeated withdrawal experience increases withdrawal-induced anxiety and stress, and if it changes ...

journal_title：Psychopharmacology

authors： Borlikova GG,Le Merrer J,Stephens DN

更新日期：2006-04-01 00:00:00

abstract：:The capacity of the specific narcotic antagonists naltrexone and naloxone to block the discriminative effects produced by morphine in the rat were evaluated using a two-choice, discrete-trial avoidance task. The antagonists produced a dose-dependent and time-dependent blockade of morphine's effects as measured by resp...

journal_title：Psychopharmacology

authors： Shannon HE,Holtzman SG

更新日期：1976-11-10 00:00:00

abstract：RATIONALE:Previous studies have shown that the effect of setting on drug-taking is substance specific in both humans and rats. In particular, we have shown that when the setting of drug self-administration (SA) coincides with the home environment of the rats (resident rats), the rats tend to prefer heroin to cocaine. T...

journal_title：Psychopharmacology

authors： Montanari C,Stendardo E,De Luca MT,Meringolo M,Contu L,Badiani A

更新日期：2015-07-01 00:00:00

abstract：RATIONALE:Chronic pain is becoming a more common medical diagnosis and is especially prevalent in older individuals. As such, prescribed use of opioids is on the rise, even though the efficacy for pain management in older individuals is unclear. OBJECTIVES:Thus, the present preclinical study assessed the effectiveness...

journal_title：Psychopharmacology

authors： Mitzelfelt JD,Carter CS,Morgan D

更新日期：2014-01-01 00:00:00