Preliminary evidence of hippocampal dysfunction in adolescent MDMA ("ecstasy") users: possible relationship to neurotoxic effects.

abstract：BACKGROUND:There is evidence that mGlu2/3 receptors regulate 5-HT2A signaling, interactions that have been theorized to play a role in the antipsychotic-like effects of mGlu2/3 agonists as well as the hallucinogenic effects of 5-HT2A agonists. One approach to unraveling this interaction is through the chronic administr...

journal_title：Psychopharmacology

authors： Halberstadt AL,van der Zee JVF,Chatha M,Geyer MA,Powell SB

更新日期：2019-02-01 00:00:00

abstract：:The administration of trycyclic antidepressants followed by reserpine-like drugs elicits a pattern of stereotyped locomotor activity. Using desmethylimipramine (DMI) followed by tetrabenazine (TBZ), activity could be reliably elicited only in young rats, and only by using very high doses of TBZ. The latency of onset o...

journal_title：Psychopharmacology

authors： Willner P,Clark D

更新日期：1978-06-15 00:00:00

abstract：RATIONALE:New research findings in the field of neuroactive steroids strongly suggest that to understand their role in physiopathology, it is essential to accurately measure their tissue levels. Through his broad chemical expertise and extensive knowledge of steroids, Dr. Robert H. Purdy pioneered structure-activity re...

journal_title：Psychopharmacology

authors： Vallée M

更新日期：2014-09-01 00:00:00

abstract：:The effects of morphine, ketocyclazocine, cyclazocine, and SKF-10,047 were tested alone and in conjunction with naltrexone or naloxone, in rats responding under a multiple fixed-interval 3-min schedule of food presentation. Under this paradigm, electric shock was delivered on a fixed-ratio schedule for responses occur...

journal_title：Psychopharmacology

authors： Snell D,Harris RA

更新日期：1982-01-01 00:00:00

abstract：RATIONALE:Human behavioral pharmacology studies can examine how medications that target different neurotransmitter systems influence different aspects of smoking. Naltrexone and bupropion have been shown to alter ad lib smoking behavior; however, medication effects on nicotine reward in a cigarette choice paradigm have...

journal_title：Psychopharmacology

authors： Rukstalis M,Jepson C,Strasser A,Lynch KG,Perkins K,Patterson F,Lerman C

更新日期：2005-06-01 00:00:00

abstract：:The novel dopamine autoreceptor antagonists (-)-DS 121 and (+)-UH 232 were tested for their ability to alter cocaine self-administration behavior in rats reinforced on a progressive ratio (PR) schedule. (-)-DS 121 (15 mg/kg) and (+)-UH 232 (30 mg/kg) produced significant decreases in breaking point. (-)-DS 121 produce...

journal_title：Psychopharmacology

authors： Smith A,Piercey M,Roberts DC

更新日期：1995-07-01 00:00:00

abstract：:A study was performed to examine behavioral response to a challenge of selective dopamine D-1 and D-2 agonists in rats previously sensitized by subchronic administration of methamphetamine or cocaine. Rats in three groups received repeated injections (IP) of saline, methamphetamine (4 mg/kg/day) or cocaine (20 mg/kg/d...

journal_title：Psychopharmacology

authors： Ujike H,Akiyama K,Otsuki S

更新日期：1990-01-01 00:00:00

abstract：RATIONALE:Reduction of body temperature is used as predictor of psychotropic drug action. The cutaneous circulation functions as a heat-loss component of temperature regulation. Clozapine and olanzapine reverse hyperthermia and sympathetically-mediated cutaneous vasoconstriction induced by MDMA (3,4-methylenedioxymetha...

journal_title：Psychopharmacology

authors： Blessing WW

更新日期：2004-10-01 00:00:00

abstract：RATIONALE:Impulsive behaviour is a component of psychiatric disorders such as bipolar disorder, attention deficit hyperactivity disorder (ADHD), or personality disorders. Most experimental studies on impulsive behaviour punish impulsive choices by loss or delay of reward. In the present study, impulsive behaviour was p...

journal_title：Psychopharmacology

authors： Evenden J,Ko T

更新日期：2005-07-01 00:00:00

abstract：:Pigeons trained to discriminate between the presence and absence of delta 9-THC (0.56 mg/kg, IM, intramuscularly) were tested with diazepam (5.6-30 mg/kg), administered IG (intragastrically), and were found to generalize the response associated with the THC training to the diazepam treatment only to a limited extent. ...

journal_title：Psychopharmacology

authors： Järbe TU,Hiltunen AJ

更新日期：1988-01-01 00:00:00

abstract：RATIONALE:Delta-opioid agonists produce a number of behavioral effects, including convulsions, antinociception, locomotor stimulation, and antidepressant-like effects. The development of these compounds as treatments for depression is limited by their convulsive effects. Therefore, determining how to separate the convu...

journal_title：Psychopharmacology

authors： Jutkiewicz EM,Rice KC,Traynor JR,Woods JH

更新日期：2005-11-01 00:00:00

abstract：:The protective effects of acute and chronic diazepam administration (4 mg/kg) against seizures induced by pentylenetetrazole (PTZ) and picrotoxin were investigated. Considering the incidence of tonic-clonic convulsions, tolerance to the protective effects of diazepam was evident by day 5 if the mice were challenged wi...

journal_title：Psychopharmacology

authors： File SE

更新日期：1983-01-01 00:00:00

abstract：:The effects on memory and psychomotor functions of four antidepressants which differ in sedative and anticholinergic properties were assessed. Amitriptyline (37.5, 70 mg), trazodone (100, 200 mg) viloxazine (100, 200 mg), protriptyline (10, 20 mg) or placebo were administered in a double blind, independent groups desi...

journal_title：Psychopharmacology

authors： Curran HV,Sakulsriprong M,Lader M

更新日期：1988-01-01 00:00:00

abstract：:Parenteral administration of the adenosine deaminase (ADA) inhibitor erythro-9-(2-hydroxy-3-nonyl)-adenine (EHNA) results in a profound decrease in spontaneous motor activity in mice and rats. The inhibition of cortical ADA activity measured ex vivo parallels the decrease in spontaneous motor activity in a time-depend...

journal_title：Psychopharmacology

authors： Mendelson WB,Kuruvilla A,Watlington T,Goehl K,Paul SM,Skolnick P

更新日期：1983-01-01 00:00:00

abstract：RATIONALE:Mice are useful tools for dissecting genetic and environmental factors in relation to the study of attention and impulsivity. The five-choice serial reaction time task (5CSRTT) paradigm has been well established in rats, but its transferability to mice is less well documented. OBJECTIVES:This study aims to s...

journal_title：Psychopharmacology

authors： Sanchez-Roige S,Peña-Oliver Y,Stephens DN

更新日期：2012-01-01 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：:In a randomised, double-blind, parallel groups study, 40 patients referred for surgical removal of impacted third molars received either (a) temazepam 40 mg orally followed at 35 min by IV saline or (b) oral placebo followed by IV diazepam 10 mg (Diazemuls). Patients were divided into High-Anxious and Low-Anxious grou...

journal_title：Psychopharmacology

authors： O'Boyte CA,Harris D,Barry H,Cullen JH

更新日期：1986-01-01 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:Mesocorticolimbic reactivity to alcohol-associated cues has been shown to be associated with relapse to renewed drinking and to be decreased by cue-exposure-based extinction training (CET). Evidence from preclinical studies suggests that the extinction of conditioned alcohol-seeking behavior might be facilita...

journal_title：Psychopharmacology

authors： Kiefer F,Kirsch M,Bach P,Hoffmann S,Reinhard I,Jorde A,von der Goltz C,Spanagel R,Mann K,Loeber S,Vollstädt-Klein S

更新日期：2015-07-01 00:00:00

abstract：:The effect of electroconvulsive shock (ECS) on the responsiveness to pain (measured by the hot-plate test) and on the characteristics of L-type calcium channels (measured as [3H]nitrendipine binding sites) in the cortex and hippocampus was tested on the Wistar rat. In animals receiving a single ECS, the calcium channe...

journal_title：Psychopharmacology

authors： Antkiewicz-Michaluk L,Michaluk J,Romańska I,Vetulani J

更新日期：1990-01-01 00:00:00

abstract：RATIONALE:Corticostriatal circuits are widely implicated in the top-down control of attention including inhibitory control and behavioural flexibility. However, recent neurophysiological evidence also suggests a role for thalamic inputs to striatum in behaviours related to salient, reward-paired cues. OBJECTIVES:Here,...

journal_title：Psychopharmacology

authors： Saund J,Dautan D,Rostron C,Urcelay GP,Gerdjikov TV

更新日期：2017-08-01 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:The role of endogenous opiate systems in cigarette smoking remains unclear. In laboratory animals, opiate antagonists block many of the effects of nicotine, but in humans they do not consistently alter smoking behavior. OBJECTIVE:This study explored the effects of naltrexone, alone and in combination with ni...

journal_title：Psychopharmacology

authors： Brauer LH,Behm FM,Westman EC,Patel P,Rose JE

更新日期：1999-04-01 00:00:00

abstract：RATIONALE:Indirect-acting serotonin (5-HT) receptor agonists can enhance the antinociceptive effects of morphine; however, the specific 5-HT receptor subtype(s) mediating this enhancement is not established. OBJECTIVE:This study examined interactions between morphine and both 5-HT(1A) and 5-HT(2A) receptor agonists in...

journal_title：Psychopharmacology

authors： Li JX,Shah AP,Patel SK,Rice KC,France CP

更新日期：2013-02-01 00:00:00

abstract：RATIONALE:The drug discrimination procedure has proven to be a valuable tool for studying the mechanism of action of psychoactive drugs. Recently, mice with targeted gene mutations have been developed that may also prove useful in evaluating the role of specific receptors in mediating the actions of drugs. We were inte...

journal_title：Psychopharmacology

authors： Smith RL,Barrett RJ,Sanders-Bush E

更新日期：2003-02-01 00:00:00

abstract：RATIONALE:Cocaine (COC), ethanol (EtOH), and methamphetamine (MA) are widely abused substances and share the ability to induce behavioral stimulation in mice and humans. Understanding the biological basis of behavioral stimulation to COC, EtOH, and MA may provide a greater understanding of drug and alcohol abuse. OBJE...

journal_title：Psychopharmacology

authors： Kamens HM,Phillips TJ

更新日期：2008-02-01 00:00:00

abstract：:Mice were trained on a one-trial inhibitory avoidance task and given immediate post-training intraperitoneal injections of cocaine (0.03-1.00 mg/kg). On a retention test 24 h later, the retention latencies of mice given the 0.10 mg/kg dose were significantly higher than those of the controls. The effect of cocaine on ...

journal_title：Psychopharmacology

authors： Introini-Collison IB,McGaugh JL

更新日期：1989-01-01 00:00:00

abstract：RATIONALE:Prepulse inhibition (PPI) of the startle reflex is a model of pre-attentional inhibitory function. The dopamine baseline in the nucleus accumbens plays a key role in PPI regulation as well as in the rewarding effects of cocaine. OBJECTIVES:The aim of this study was to evaluate the predictive ability of PPI t...

journal_title：Psychopharmacology

authors： Arenas MC,Navarro-Francés CI,Montagud-Romero S,Miñarro J,Manzanedo C

更新日期：2018-09-01 00:00:00

abstract：RATIONALE:Consumption of alcohol begins during late adolescence in a majority of humans, and the greatest drinking occurs at 18-25 years then decreases with age. OBJECTIVES:The present study measured the differences in ethanol intake in relation to age at the onset of ethanol access among nonhuman primates to control ...

journal_title：Psychopharmacology

authors： Helms CM,Rau A,Shaw J,Stull C,Gonzales SW,Grant KA

更新日期：2014-04-01 00:00:00

abstract：BACKGROUND:Marijuana intoxication appears to impair response inhibition, but it is unclear if impaired inhibition and associated brain abnormalities persist after prolonged abstinence among adolescent users. We hypothesized that brain activation during a go/no-go task would show persistent abnormalities in adolescent m...

journal_title：Psychopharmacology

authors： Tapert SF,Schweinsburg AD,Drummond SP,Paulus MP,Brown SA,Yang TT,Frank LR

更新日期：2007-10-01 00:00:00