Effect of apomorphine on cognitive performance and sensorimotor gating in humans.

abstract：:5-Hydroxytryptamine1A (5-HT1A) receptors have been shown to be suppressed by corticosteroid hormones in a variety of animal experimental paradigms. It has been suggested that this effect may be central to the pathophysiology of severe clinical depressive illness, a condition in which 5-HT1A receptor function is reduce...

journal_title：Psychopharmacology

authors： Porter RJ,McAllister-Williams RH,Lunn BS,Young AH

更新日期：1998-10-01 00:00:00

abstract：:A simple new method, the "tape test" has been developed for studying the enhancement of learning by drugs in "learning-dull" rats. A piece of adhesive tape is pressed on the left front pad of the rats. The time of tape removal by the animal, i.e., the problem-solving time is measured. In our experiments the selected l...

journal_title：Psychopharmacology

authors： Ezer E,Szporny L

更新日期：1976-07-09 00:00:00

abstract：:The present study compared the acute subject-rated and performance-impairing effects of trazodone and triazolam in seven healthy humans. Trazodone (50, 100 and 200 mg), triazolam (0.125, 0.25, 0.50 mg) and placebo were administered orally in a double-blind, crossover design. Drug effects were measured approximately 30...

journal_title：Psychopharmacology

authors： Rush CR,Madakasira S,Hayes CA,Johnson CA,Goldman NH,Pazzaglia PJ

更新日期：1997-05-01 00:00:00

abstract：:The differential sensitivity of young and elderly healthy adults to the impairment effects of benzodiazepines was assessed by tasks with several levels of difficulty. Using a double-blind procedure, single doses of placebo, alprazolam (0.75 and 1.5 mg) and triazolam (0.25 and 0.5 mg) were ingested orally by 10 young m...

journal_title：Psychopharmacology

authors： Nikaido AM,Ellinwood EH Jr,Heatherly DG,Gupta SK

更新日期：1990-01-01 00:00:00

abstract：RATIONALE:Group I metabotropic glutamate receptor antagonists, which block both the mGlu1 and mGlu5 receptors, have been shown to have anxiolytic effects in the lick suppression test in rats. OBJECTIVE:The anxiolytic potential of the selective mGlu1 antagonist 3,4-dihydro-2H-pyrano[2,3]beta-quinolin-7-yl)(cis-4-methox...

journal_title：Psychopharmacology

authors： Steckler T,Lavreysen H,Oliveira AM,Aerts N,Van Craenendonck H,Prickaerts J,Megens A,Lesage AS

更新日期：2005-04-01 00:00:00

abstract：:Lu 25-109 [5-(2-ethyl-2H-tetrazol-5-yl)-1,2,3,6-tetrahydro-1-methylpyridine] , has M agonistic and M2/M3 antagonistic effects at muscarinic receptors in vitro; a pharmacological profile that may be beneficial in treatment of Alzheimer's disease. In the present study, we compare functional in vivo effects of Lu 25-109 ...

journal_title：Psychopharmacology

authors： Sánchez C,Arnt J,Didriksen M,Dragsted N,Moltzen Lenz S,Matz J

更新日期：1998-06-01 00:00:00

abstract：OBJECTIVES:Early onset of heroin use during adolescence might increase chances of later drug addiction. Prior work from our laboratory suggests, however, that adolescent male rats are actually less sensitive than adults to some enduring effects of heroin self-administration. In the present study, we tested two likely c...

journal_title：Psychopharmacology

authors： Doherty JM,Frantz KJ

更新日期：2013-02-01 00:00:00

abstract：:Responding maintained under progressive ratio (PR) and fixed ratio (FR 160) schedules of IV saline or cocaine (0.01-4.0 mg/kg) injections was studied in baboons. Each injection was followed by a time-out period which was 3-h with the PR schedule and was either 3 or 12 with the FR schedule. On the PR schedule the ratio...

journal_title：Psychopharmacology

authors： Griffiths RR,Bradford LD,Brady JV

更新日期：1979-10-01 00:00:00

abstract：RATIONALE:In animal studies, the common club drug 3,4-methylendioxymethamphetamine (MDMA, "Ecstasy") consistently caused a prolonged loss of presynaptic serotonergic neurons, and evidence suggests that MDMA consumption may also affect the human serotonergic system. Serotonin (5-HT) has been implicated in the regulation...

journal_title：Psychopharmacology

authors： Quednow BB,Kühn KU,Hoppe C,Westheide J,Maier W,Daum I,Wagner M

更新日期：2007-01-01 00:00:00

abstract：RATIONALE:Alcohol intoxication can dampen negative affective reactions to stressors. Recently, it has been proposed that these acute anxiolytic effects of alcohol may extend to dampening of negative affective reactions to error commission during cognitive control tasks. Nonetheless, empirical verification of this claim...

journal_title：Psychopharmacology

authors： Cofresí RU,Bartholow BD

更新日期：2020-11-01 00:00:00

abstract：RATIONALE:Acute ethanol administration induces hypothermia in genetically susceptible animals. Tolerance to this effect may develop with repeated administration. Allopregnanolone is an endogenously produced neuroactive steroid that acts at the GABA-A receptor. We postulated that allopregnanolone would induce hypothermi...

journal_title：Psychopharmacology

authors： Palmer AA,Moyer MR,Crabbe JC,Phillips TJ

更新日期：2002-07-01 00:00:00

abstract：:Previous research has found that the attention of social drinkers is preferentially oriented towards alcohol-related stimuli (attentional capture). This is argued to play a role in escalating craving for alcohol that can result in hazardous drinking. According to incentive theories of drug addiction, the stimuli assoc...

journal_title：Psychopharmacology

authors： Brown CRH,Duka T,Forster S

更新日期：2018-07-01 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:Withdrawal seizure-prone and withdrawal seizure-resistant mice were selectively bred to exhibit differences in handling-induced convulsion severity during ethanol withdrawal. The glutamatergic system has been implicated in seizure activity as well as ethanol withdrawal symptoms. OBJECTIVE:This study assessed...

journal_title：Psychopharmacology

authors： Buckman JF,Meshul CK,Finn DA,Janowsky A

更新日期：1999-04-01 00:00:00

abstract：:A two flavour, unbiased, taste preference conditioning procedure was used to test for possible motivating effects of gamma 2-MSH. Three training trials failed to produce any significant effect with doses ranging from 2.4 to 40 micrograms/ICV infusion in drug-naive, non-operated or placebo-implanted rats. However, in r...

journal_title：Psychopharmacology

authors： Mucha RF,van Ree JM

更新日期：1989-01-01 00:00:00

abstract：:Mature rats (starting weight at least 270 g) were treated daily with cannabis extract (daily THC dose 20 mg/kg) for 3 months. After a 1- to 4-month drug-free period, residual effects on a variety of behaviors were studied. No residual effects were found in learning of an eight-arm radial maze task, nor on a differenti...

journal_title：Psychopharmacology

authors： Stiglick A,Kalant H

更新日期：1985-01-01 00:00:00

abstract：:The i.v. pentylenetetrazol seizure threshold was increased by 2.5 mg/kg and decreased by 15 mg/kg of a single (+)-amphetamine dose. After 7 consecutive days of amphetamine administration, tolerance developed to the decrease but not to the increase in seizure threshold. At 12--48 h after the last dose of 2.5 mg/kg seiz...

journal_title：Psychopharmacology

authors： Riffee WH,Gerald MC

更新日期：1977-01-31 00:00:00

abstract：:The title of this article is "Effect of a dual orexin receptor antagonist (DORA-12) on sleep and event-related oscillations in rats exposed to ethanol vapor during adolescence". ...

journal_title：Psychopharmacology

authors： Ehlers CL,Benedict J,Wills D,Sanchez-Alavez M

更新日期：2020-11-01 00:00:00

abstract：RATIONALE:Previous work has shown that environmental enrichment alters amphetamine-induced locomotor activity and conditioned place preference. OBJECTIVE:The present study examined the effect of environmental enrichment on amphetamine self-administration. METHODS:Female and male rats were raised from 21 days of age i...

journal_title：Psychopharmacology

authors： Bardo MT,Klebaur JE,Valone JM,Deaton C

更新日期：2001-05-01 00:00:00

abstract：:Evaluation of the efficacy of antidepressant agents needs to take into account factors which increase the "effect size", such as dosage, treatment duration, the use of two-phase trials, and pattern analysis of responders. Although many patients are thought to receive inadequate doses of antidepressants, relatively few...

journal_title：Psychopharmacology

authors： Quitkin FM

更新日期：1992-01-01 00:00:00

abstract：RATIONALE:The cerebral microdialysis technique has been widely used to monitor the release of 5-hydroxytryptamine (5-HT). The extracellular concentration of 5-HT has generally been shown to change after pharmacological manipulation as expected. Extracellular levels of the metabolite, 5-hydroxyindoleaceticacid (5-HIAA) ...

journal_title：Psychopharmacology

authors： Stenfors C,Ross SB

更新日期：2004-03-01 00:00:00

abstract：:The low rate of success for identifying effective treatments for cognitive dysfunction has prompted recent efforts to improve pharmaceutical discovery and development. In particular, investigators have emphasized improving translation from pre-clinical to clinical research. A specific area of focus has been touchscree...

journal_title：Psychopharmacology

authors： Mohler EG,Ding Z,Rueter LE,Chapin D,Young D,Kozak R

更新日期：2015-11-01 00:00:00

abstract：RATIONALE:The positive modulation of gamma-aminobutyric acid type-A (GABAA) receptors is a putative mechanism via which alcohol escalates aggressive behavior. Broad-spectrum benzodiazepine antagonists block alcohol-heightened aggression in rats and monkeys. However, the degree to which GABAA subunit composition plays a...

journal_title：Psychopharmacology

authors： de Almeida RM,Rowlett JK,Cook JM,Yin W,Miczek KA

更新日期：2004-03-01 00:00:00

abstract：RATIONALE:Repeated administration of psychoactive drugs results in a progressive enhancement of the behavioral effects of these compounds, a phenomenon termed sensitization. OBJECTIVE:We tested whether repeated administration of the non-competitive NMDA receptor antagonist dizocilpine (MK-801) induces sensitization of...

journal_title：Psychopharmacology

authors： Schulz B,Fendt M,Pedersen V,Koch M

更新日期：2001-07-01 00:00:00

abstract：RATIONALE:Alcohol-associated cues elicit craving in human addicts but little is known about craving mechanisms. Current animal models focus on relapse and this may confound the effect of environmental cues. OBJECTIVES. To develop a model to study the effects of environmental cues on alcohol consumption in animals not e...

journal_title：Psychopharmacology

authors： Pickering C,Liljequist S

更新日期：2003-07-01 00:00:00

abstract：:In a placebo-controlled study, we investigated the influence of nicotine on late-day aviation performance in 15 non-smoking subjects. In a within-subjects design, subjects were tested on 2 days, each lasting 8 h and consisting of three 75-min simulator flights (late-afternoon practice, evening test, night test). Prior...

journal_title：Psychopharmacology

authors： Mumenthaler MS,Taylor JL,O'Hara R,Yesavage JA

更新日期：1998-11-01 00:00:00

abstract：:A recent study from our laboratory has demonstrated that C57BL/6 male mice that are chronically injected with nicotine develop a profound tolerance to nicotine that is not associated with changes in brain nicotinic receptors. We have proposed that alterations in the secretion of corticosterone (CCS) may regulate toler...

journal_title：Psychopharmacology

authors： Grun EA,Pauly JR,Collins AC

更新日期：1992-01-01 00:00:00

abstract：:Rat open field behavior is often used as a tool to study the behavioral effects of drugs. In this report, drug-induced patterns of locomotion in an open field were studied with the aid of a simple new statistic. Briefly, the animal's path through the open field is converted into a series of trips. Gamma (gamma) estima...

journal_title：Psychopharmacology

authors： Mueller K,Hollingsworth EM,Cross DR

更新日期：1989-01-01 00:00:00

abstract：:Normal male volunteers took single acute doses of either diazepam or placebo under double-blind conditions in three simulated public speaking experiments. Measures of palmar sweating and subjective anxiety showed that anticipation of speaking in public increased anxiety relative to baseline and prestress conditions, a...

journal_title：Psychopharmacology

authors： McNair DM,Frankenthaler LM,Czerlinsky T,White TW,Sasson S,Fisher S

更新日期：1982-01-01 00:00:00

abstract：INTRODUCTION:Nearly 25% of American adults remain regular smokers. Current smokers may be especially likely to possess characteristics that impair their ability to quit, such as impulsivity. Impulsive individuals may be overly prone to smoke because they are particularly drawn to rewarding stimuli and related cues. The...

journal_title：Psychopharmacology

authors： Doran N,Spring B,McChargue D

更新日期：2007-10-01 00:00:00