An endocannabinoid signal associated with desire for alcohol is suppressed in recently abstinent alcoholics.

abstract：RATIONALE:Methylphenidate is a psychostimulant given for extended periods of time as a treatment of attention-deficit/hyperactivity disorder (ADHD). The long-term effects of the drug are not yet known, and it is speculated that repeated exposure may produce drug dependence. OBJECTIVE:To investigate the effects of repe...

journal_title：Psychopharmacology

authors： dela Peña I,Yoon SY,Lee JC,dela Peña JB,Sohn AR,Ryu JH,Shin CY,Cheong JH

更新日期：2012-05-01 00:00:00

abstract：RATIONALE:The contribution of dopamine receptor subtypes in mediating the discriminative stimulus effects of cocaine is not fully established. Many drug discrimination studies use food to maintain responding, necessitating food restriction, which can alter drug effects. OBJECTIVE:This study established stimulus contro...

journal_title：Psychopharmacology

authors： Baladi MG,Newman AH,France CP

更新日期：2014-02-01 00:00:00

abstract：:Supersensitivity to serotonin during migraine attack has been previously observed. Since the attack has been attributed to a critical lowering of morphine-like factors, we can expect serotonin supersensitivity during morphine abstinence. Slight signs of morphine abstinence have also been induced in volunteers after mi...

journal_title：Psychopharmacology

authors： Sicuteri F,Del Bianco PL,Anselmi B

更新日期：1979-10-01 00:00:00

abstract：RATIONALE:The endocannabinoid system has been implicated in the pathogenesis of major depression (MD) as well as in the mediation of antidepressant drug effects. OBJECTIVES:To analyze CNR1 gene variants in MD and clinical response to citalopram (selective serotonin re-uptake inhibitors [SSRI]). METHODS:The role of CN...

journal_title：Psychopharmacology

authors： Mitjans M,Serretti A,Fabbri C,Gastó C,Catalán R,Fañanás L,Arias B

更新日期：2013-06-01 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：:Two enantiomers (1S and 1R) of delta-3-tetrahydrocannabinol were assayed in man for psychoactivity. The 1S enantiomer had definite psychic actions, qualitatively similar to those of delta-1-tetrahydrocannabinol, but quantitatively less potent (1:3 to 1:6). Adding the two enantiomers together did not increase the effec...

journal_title：Psychopharmacology

authors： Hollister LE,Gillespie HK,Mechoulam R,Srebnik M

更新日期：1987-01-01 00:00:00

abstract：RATIONALE:Buprenorphine is a partial mu opioid agonist under development as a sublingual (SL) medication for opioid dependence treatment in the United States. Because buprenorphine may be abused, tablets combining buprenorphine with naloxone in a 4:1 ratio have been developed to reduce that risk. Low doses of injected ...

journal_title：Psychopharmacology

authors： Stoller KB,Bigelow GE,Walsh SL,Strain EC

更新日期：2001-03-01 00:00:00

abstract：:Experiments assessed the development of tolerance to morphine stimulus control during treatment with selected maintenance doses of morphine. Separate groups of rats were trained to discriminate saline and either 3.2 mg/kg or 5.6 mg/kg morphine under fixed-ratio schedules of food delivery. Dose-response functions for g...

journal_title：Psychopharmacology

authors： Young AM,Sannerud CA,Steigerwald ES,Doty MD,Lipinski WJ,Tetrick LE

更新日期：1990-01-01 00:00:00

abstract：:Phenelzine (PLZ) is a non-selective monoamine oxidase (MAO) inhibitor commonly used to treat depression and panic disorder. In addition to increasing levels of biogenic amines in the brain, PLZ elevates brain levels of the amino acid gamma-aminobutyric acid (GABA; Baker et al. 1991; present study). Given the extensive...

journal_title：Psychopharmacology

authors： Parent MB,Habib MK,Baker GB

更新日期：1999-03-01 00:00:00

abstract：:The effects of flumazenil, a benzodiazepine receptor antagonist, on triazolam- and zolpidem-induced memory impairment were investigated. Sixty subjects received oral triazolam 0.5 mg, zolpidem 20.0 mg, or placebo at 10 a.m. (n = 20 per drug). Ninety minutes later, half of the subjects (n = 10) in each oral drug group ...

journal_title：Psychopharmacology

authors： Wesensten NJ,Balkin TJ,Davis HQ,Belenky GL

更新日期：1995-09-01 00:00:00

abstract：RATIONALE:Experienced cannabis users demonstrate tolerance to some of the impairing acute effects of cannabis. OBJECTIVES:The present study investigates whether event-related potentials (ERPs) differ between occasional and heavy cannabis users after acute Δ9-tetrahydrocannabinol (THC) administration, as a result of to...

journal_title：Psychopharmacology

authors： Theunissen EL,Kauert GF,Toennes SW,Moeller MR,Sambeth A,Blanchard MM,Ramaekers JG

更新日期：2012-03-01 00:00:00

abstract：:Various dopamine receptor antagonists have divergent clinical and neurochemical properties. The relative ability of anticholinergics (benztropine and scopolamine) to reverse these drugs was assessed in squirrel monkeys and rats performing a Sidman avoidance task. In monkeys, benztropine markedly attenuated the effects...

journal_title：Psychopharmacology

authors： Liebman JM,Neale R,Noreika L,Braunwalder A

更新日期：1981-01-01 00:00:00

abstract：:Buprenorphine, a partial mu opioid agonist, is an experimental medication under development for the treatment of opioid dependence as an alternative to methadone maintenance. The present study examined the relationship between level of opioid physical dependence and response to buprenorphine administration as part of ...

journal_title：Psychopharmacology

authors： Walsh SL,June HL,Schuh KJ,Preston KL,Bigelow GE,Stitzer ML

更新日期：1995-06-01 00:00:00

abstract：RATIONALE:3,4-Methylenedioxymethamphetamine (MDMA) produces a long-term depletion of serotonin (5-HT) in the rat brain; this depletion may have some functional consequences. OBJECTIVE:The aim of the present study was to evaluate the acute effects of MDMA on the extracellular concentrations of dopamine and 5-HT, body t...

journal_title：Psychopharmacology

authors： Shankaran M,Gudelsky GA

更新日期：1999-11-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:We previously found that systemic injections of the 5-HT uptake blocker fluoxetine attenuate intermittent footshock stress-induced reinstatement of alcohol seeking in rats, while inhibition of 5-HT neurons in the median raphe induces reinstatement of alcohol seeking. In this study, we further e...

journal_title：Psychopharmacology

authors： Lê AD,Funk D,Harding S,Juzytsch W,Fletcher PJ,Shaham Y

更新日期：2006-05-01 00:00:00

abstract：RATIONALE:Reelin, a large extracellular matrix glycoprotein, is down-regulated in the brain of schizophrenic patients and of heterozygous reeler mice (rl/+). The behavioral phenotype of rl/- mice, however, matches only partially the schizophrenia hallmarks. OBJECTIVES:We recently reported (Marrone et al., Eur J Neuros...

journal_title：Psychopharmacology

authors： Ammassari-Teule M,Sgobio C,Biamonte F,Marrone C,Mercuri NB,Keller F

更新日期：2009-06-01 00:00:00

abstract：:Under the fixed-consecutive-number schedule (FCN), pigeons were reinforced for responding eight or more times on one response key (work key), and then responding once on a second response key. In one component of this schedule, an external stimulus signalled the completion of the response requirement on the work key (...

journal_title：Psychopharmacology

authors： Picker M,Dykstra LA

更新日期：1988-01-01 00:00:00

abstract：RATIONALE:Antiepileptic drugs are known to produce side effects which may impair driving performance. Performance effects, however, may differ substantially between individual antiepileptic drugs. OBJECTIVE:To compare the effects of carbamazepine, remacemide, and placebo on actual driving performance during a 12-day i...

journal_title：Psychopharmacology

authors： Ramaekers G,Lamers J,Verhey F,Muntjewerff D,Mobbs E,Sanders N,Lewis M,Lockton A

更新日期：2002-01-01 00:00:00

abstract：RATIONALE:We have shown that differences in the level of neural activation to stimuli associated with smoking vs. natural rewards, a biomarker related to reward sensitivity, predict treatment outcome. OBJECTIVES:This paper examined whether this biomarker moderates the impact of bupropion or varenicline on smoking cess...

journal_title：Psychopharmacology

authors： Cinciripini PM,Green CE,Robinson JD,Karam-Hage M,Engelmann JM,Minnix JA,Wetter DW,Versace F

更新日期：2017-06-01 00:00:00

abstract：:The effects of drugs on one aspect of impulsive behaviour were evaluated using a schedule in which rats were trained to complete a fixed consecutive number of responses on one of two levers before pressing the second to obtain a reinforcer (FCN). Terminating the chain before completing the FCN resulted in the omission...

journal_title：Psychopharmacology

authors： Evenden JL

更新日期：1998-08-01 00:00:00

abstract：:Young adult rats (5 months) were compared with aged (28 months) rats in their ability to learn and perform in a diazepam drug discrimination. Both groups of rats were drug naive at the onset of the experiment. Adult and aged animals learned to discriminate diazepam. In general, the response rates under both drug and v...

journal_title：Psychopharmacology

authors： Amrick CL,Bennett DA

更新日期：1987-01-01 00:00:00

abstract：RATIONALE:Schizophrenia is characterized by a large variety of cognitive symptoms, among which information processing deficits have been extensively studied. So far, these aspects have been found to be remarkably stable and effective treatment is still lacking. Traditionally, information processing is subdivided into p...

journal_title：Psychopharmacology

authors： Ellenbroek BA

更新日期：2004-06-01 00:00:00

abstract：:Administration of the serotonin (5-HT)1A receptor agonist 8-hydroxy-2-(di-n-propylamino)tetralin (8-OH-DPAT) facilitates the expression of masculine sexual behavior in male and female rats as well as in male rhesus monkeys and inhibits lordosis behavior in female rats. In the present study the effects of 8-OH-DPAT on ...

journal_title：Psychopharmacology

authors： Paredes RG,Kica E,Baum MJ

更新日期：1994-05-01 00:00:00

abstract：RATIONALE:The P3 is a ubiquitous component of stimulus-driven neural activity that can be observed in scalp electrophysiological recordings. Multiple lines of evidence suggest an important role for the noradrenergic system in the generation of the P3. However, pharmacological studies of the P3 using noradrenergic manip...

journal_title：Psychopharmacology

authors： de Rover M,Brown SB,Band GP,Giltay EJ,van Noorden MS,van der Wee NJ,Nieuwenhuis S

更新日期：2015-09-01 00:00:00

abstract：:There is much evidence suggesting that the mesoamygdala dopaminergic (DAergic) system plays a crucial role in the formation and expression of fear conditioning, with both D1 and D2 receptors being involved. In addition, cannabinoid CB1 receptor (CB1R) signaling modulates DAergic pathways. The present study sought to d...

journal_title：Psychopharmacology

authors： Nasehi M,Hajian M,Ebrahimi-Ghiri M,Zarrindast MR

更新日期：2016-01-01 00:00:00

abstract：RATIONALE:We recently demonstrated that blocking specific nicotinic acetylcholine receptors (nAChRs) abolishes the conditioned reinforcing properties of ethanol-associated cues in rat, suggesting nAChRs as promising pharmacological targets for prevention of cue-induced relapse. OBJECTIVES:The present study investigate...

journal_title：Psychopharmacology

authors： Löf E,Olausson P,Stomberg R,Taylor JR,Söderpalm B

更新日期：2010-10-01 00:00:00

abstract：:To investigate the role of D1 dopamine receptors in the discriminative stimulus effects of cocaine, two rhesus monkeys were trained in a two-lever, food-reinforced, drug discrimination paradigm to discriminate cocaine (0.2 mg/kg, IM) from saline. Administration of various doses of cocaine resulted in a dose-related in...

journal_title：Psychopharmacology

authors： Kleven MS,Anthony EW,Goldberg LI,Woolverton WL

更新日期：1988-01-01 00:00:00

abstract：RATIONALE:Electrophysiological studies have identified a scalp potential, the late positive potential (LPP), which is modulated by the emotional intensity of observed stimuli. Previous work has shown that the LPP reflects the modulation of activity in extrastriate visual cortical structures, but little is known about t...

journal_title：Psychopharmacology

authors： de Rover M,Brown SB,Boot N,Hajcak G,van Noorden MS,van der Wee NJ,Nieuwenhuis S

更新日期：2012-02-01 00:00:00

abstract：RATIONALE:Although both contain behaviourally significant concentrations of caffeine, tea is commonly perceived to be a less stimulating drink than coffee. At least part of the explanation for this may be that theanine, which is present in tea but not coffee, has relaxing effects. There is also some evidence that thean...

journal_title：Psychopharmacology

authors： Rogers PJ,Smith JE,Heatherley SV,Pleydell-Pearce CW

更新日期：2008-01-01 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