Effects of increasing response requirement on choice between cocaine and food in rhesus monkeys.

abstract：RATIONALE AND OBJECTIVES:Functional (pharmacodynamic) ethanol tolerance can be evidenced within a single session of exposure to ethanol (acute or within-session tolerance), or after repeated ethanol exposures (chronic or between-session tolerance). To investigate whether acute and chronic tolerance to ethanol are inter...

journal_title：Psychopharmacology

authors： Wu PH,Tabakoff B,Szabó G,Hoffman PL

更新日期：2001-06-01 00:00:00

abstract：:Acute (50.0 mg/kg) and repeated (0.1-10.0 mg/kg) administration of dihydroergosine (DHESN) to rats over 5 days lowered the concentration of 5-HIAA in the brain. DHESN given acutely increased the brain 5-HT in p-CPA-treated animals and diminished the probenecid-induced increase in brain 5-HIAA. In pargyline-treated rat...

journal_title：Psychopharmacology

authors： Pericić D,Manev H,Levanat S,Jernej B,Vujić D,Djordjević N

更新日期：1986-01-01 00:00:00

abstract：RATIONALE:Previous studies have postulated functional links between GABA and cannabinoid systems in the hippocampus. The aim of the present study was to investigate any possible interaction between these systems in spatial change and object novelty discrimination memory consolidation in the dorsal hippocampus (CA1 regi...

journal_title：Psychopharmacology

authors： Nasehi M,Alaghmandan-Motlagh N,Ebrahimi-Ghiri M,Nami M,Zarrindast MR

更新日期：2017-10-01 00:00:00

abstract：:The behavioral effects of repeated methylphenidate (MPH) treatment were assessed in the adult rat. Protein kinase A (PKA) and adenylyl cyclase (basal and DA-stimulated) activity in the dorsal striatum (i.e., caudate-putamen) were measured to determine whether MPH-induced alterations in these enzymes correlate with the...

journal_title：Psychopharmacology

authors： Crawford CA,McDougall SA,Meier TL,Collins RL,Watson JB

更新日期：1998-03-01 00:00:00

abstract：:Recent studies indicate that some aspects of memory can be enhanced by the administration of oxygen or glucose. Considering the dependency of glucose metabolism upon oxygen supply, the present study predicted that administering a combination of 100% oxygen with glucose would have greater memory-enhancing effects than ...

journal_title：Psychopharmacology

authors： Winder R,Borrill J

更新日期：1998-04-01 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：:Latent inhibition (LI) is a phenomenon in which repeated, non-reinforced presentation of a stimulus retards subsequent conditioning to that stimulus. Several recent experiments have suggested that LI is abolished following acute, low doses of amphetamine given during pre-exposure and conditioning, and this effect has ...

journal_title：Psychopharmacology

authors： Killcross AS,Robbins TW

更新日期：1993-01-01 00:00:00

abstract：:The antipsychotic drugs haloperidol and clozapine have the common action of increasing dopamine metabolism in the striatum (nucleus accumbens, caudate-putamen) of the rat. Intracerebroventricular administration of kainic acid (KA) produces neuronal loss in limbic-cortical brain regions which project directly or indire...

journal_title：Psychopharmacology

authors： Bardgett ME,Salaris SL,Jackson JL,Harding J,Csernansky JG

更新日期：1997-09-01 00:00:00

abstract：RATIONALE:Rolipram, an inhibitor of cyclic AMP phosphodiesterase (PDE4) produces discriminative stimulus effects in rats. These effects may be related to a wide range of central nervous system effects described previously. OBJECTIVE:The purposes of the present study were to: (i) assess the specificity of the discrimin...

journal_title：Psychopharmacology

authors： Makhay MM,Houslay MD,O'Donnell JM

更新日期：2001-11-01 00:00:00

abstract：RATIONALE:The non-selective nicotinic acetylcholine receptor (nAChR) agonist nicotine has been argued to improve attention via enhanced filtering of irrelevant stimuli. Here, we tested this hypothesis in the context of smooth pursuit eye movements (SPEMs), an oculomotor function previously shown to improve with nicotin...

journal_title：Psychopharmacology

authors： Meyhöfer I,Kasparbauer AM,Steffens M,Ettinger U

更新日期：2019-07-01 00:00:00

abstract：:Intravenous self-administration of d-amphetamine (0.25 mg/kg/injection) decreased in a dose-related fashion after injections of the dopaminergic agonists apomorphine and piribedil. The dopaminergic agonists appear to suppress amphetamine intake in the same way as do 'free' amphetamine injections, by extending drug sat...

journal_title：Psychopharmacology

authors： Yokel RA,Wise RA

更新日期：1978-07-19 00:00:00

abstract：RATIONALE:Performance on progressive ratio schedules has been proposed as a means of assessing the effects of drugs on the value or "efficacy" of reinforcers. A mathematical model affords a basis for quantifying the effects of drugs on progressive ratio schedule performance. According to this model, the relation betwee...

journal_title：Psychopharmacology

authors： Zhang Z,Rickard JF,Asgari K,Body S,Bradshaw CM,Szabadi E

更新日期：2005-05-01 00:00:00

abstract：:Lithium pretreatment in rats potentiates the epileptogenic effects of pilocarpine and other cholinergic agonists. In order to determine if this effect of lithium could be reversed by myo-inositol, rats were pretreated with intracerebroventricular (ICV) injections of myoinositol, artificial CSF or L-chiro-inositol. Lit...

journal_title：Psychopharmacology

authors： Kofman O,Sherman WR,Katz V,Belmaker RH

更新日期：1993-01-01 00:00:00

abstract：RATIONALE:Recent studies have implicated an important role for the dorsal striatum during craving for cocaine and in cocaine-seeking after abstinence in rats. OBJECTIVES:We compared the effects of pharmacological inactivation of mesencephalic dopamine (DA) cell body regions and dorsal vs ventral striatal terminal fiel...

journal_title：Psychopharmacology

authors： See RE,Elliott JC,Feltenstein MW

更新日期：2007-10-01 00:00:00

abstract：:Acamprosate (calcium-acetyl homotaurinate) is a new compound used in the treatment of alcohol abuse. Because of the putative link between alcoholism and the endogenous opioid systems in both humans and laboratory animals, we tested in rats the effects of acamprosate on behavioral and neurochemical effects of opioid dr...

journal_title：Psychopharmacology

authors： Spanagel R,Sillaber I,Zieglgänsberger W,Corrigall WA,Stewart J,Shaham Y

更新日期：1998-10-01 00:00:00

abstract：BACKGROUND:The thalamus is a major target of dopaminergic projections and is densely connected with the prefrontal cortex. A better understanding of how dopamine changes thalamo-cortical communication may shed light on how dopamine supports cognitive function. Methylphenidate has been shown to facilitate cognitive proc...

journal_title：Psychopharmacology

authors： Gorka AX,Lago TR,Balderston N,Torrisi S,Fuchs B,Grillon C,Ernst M

更新日期：2020-06-01 00:00:00

abstract：:The intracerebroventricular administration of carbachol chloride induced a characteristic wet dog shake response in rats. Neither 5,6-dihydroxytryptamine, a serotonergic depletor, nor DL-p-chlorophenylalanine, an inhibitor of 5-HT synthesis, affected wet dog shakes induced by carbachol. Putative antiserotonergic drugs...

journal_title：Psychopharmacology

authors： Turski L,Turski W,Czuczwar SJ,Kleinrok Z

更新日期：1981-01-01 00:00:00

abstract：BACKGROUND:The general premise that receptor theory provides a useful framework for understanding the behavioral effects of psychoactive drugs has been a central tenet of behavioral pharmacology. OBJECTIVES:The purpose of this review is to reiterate this basic theme and, in particular, the proposition that current con...

journal_title：Psychopharmacology

authors： Bergman J,France CP,Holtzman SG,Katz JL,Koek W,Stephens DN

更新日期：2000-12-01 00:00:00

abstract：RATIONALE:(+/-) 3,4-Methylenedioxymethamphetamine (MDMA, "ecstasy") is an amphetamine analog and drug of abuse. In animals, MDMA damages brain serotonin (5-HT) neurons at doses that overlap with those used recreationally by some humans. To date, few functional sequelae of MDMA-induced 5-HT damage have been identified. ...

journal_title：Psychopharmacology

authors： McCann UD,Mertl M,Eligulashvili V,Ricaurte GA

更新日期：1999-04-01 00:00:00

abstract：RATIONALE:Behavioral disturbances (BD) are prevalent in patients with substance use disorders (SUD). OBJECTIVES:To test the hypothesis that chronic exposure to cocaine could favor the acquisition of BD that were not present in childhood. METHODS:We used child and adult ADHD self-report screening scales (WURS-25 and A...

journal_title：Psychopharmacology

authors： Vorspan F,de Witt P,Zerdazi EH,Karsinti E,Ksouda K,Icick R,Bellivier F,Marie N,Brousse G,Bloch V

更新日期：2020-11-01 00:00:00

abstract：:Rats selectively bred for high alcohol sleep times (HAS) and those that are less affected (LAS) by hypnotic doses (3.0-3.6 g/kg) of ethanol were tested for differential responses to the aversive effects of 1.0 g/kg ethanol in a conditioned place preference task. Likewise, the effects of 0.3-1.0 g/kg ethanol on spontan...

journal_title：Psychopharmacology

authors： Schechter MD,Krimmer EC

更新日期：1992-01-01 00:00:00

abstract：:It was the aim of the present study to determine the affinities of four neuroleptics and five antidepressants for histamine H3 receptors. In rat brain cortex membranes, the specifically bound [3H]-N alpha-methylhistamine was monophasically displaced by clozapine (pKi 6.15). The other drugs did not completely displace ...

journal_title：Psychopharmacology

authors： Kathmann M,Schlicker E,Göthert M

更新日期：1994-12-01 00:00:00

abstract：:A study was performed on the effect of ethanol on the basal and K+-evoked efflux of endogenous GABA from rat hypothalamic fragments. The amount of GABA present in the medium and in the tissue was measured by radioreceptor assay. In vitro addition of ethanol (50 and 100 mM) enhanced the K+-evoked efflux of GABA in a Ca...

journal_title：Psychopharmacology

authors： Seilicovich A,Duvilanski BH,Lasaga M,Debeljuk L,Díaz MC

更新日期：1988-01-01 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:Repeated social stress experiences engender "behavioral sensitization" and may also increase the potential for abuse of psychomotor stimulants, particularly cocaine use during "binges." OBJECTIVE:Experimental protocols were designed to induce behavioral sensitization through exposures to social-defeat stress...

journal_title：Psychopharmacology

authors： Covington HE 3rd,Miczek KA

更新日期：2001-12-01 00:00:00

abstract：:The acute effect of ethanol upon the NSD (normalized slope descriptors) or Hjorth parameters of EEG were analyzed in 11 students. The maximal blood-alcohol concentration ranged from 1.0--1.7 mg/l. The activity (mean amplitude) increased and the complexity (frequency spread) decreased significantly as a function of tim...

journal_title：Psychopharmacology

authors： Lehtinen I,Lang AH,Keskinen E

更新日期：1978-12-15 00:00:00

abstract：:Ten rats were trained to lever press for food reward on a schedule of differential reinforcement of low rates of response with a 20-s criterion (DRL 20). Ten more were trained on a new schedule of punishment, designed to be comparable to DRL 20 - differential punishment of high rates of response (DPH 20). Under this s...

journal_title：Psychopharmacology

authors： Salmon P,Gray JA

更新日期：1985-01-01 00:00:00

abstract：:The effects of dopamine agonists on self-stimulation are a matter of considerable dispute. Apomorphine has variously been reported to inhibit, have no effect on, or to facilitate lever-press self-stimulation. To investigate the possibility that these discrepancies may reflect peculiarities of the lever-press test situ...

journal_title：Psychopharmacology

authors： Atrens DM,Becker FT,Hunt GE

更新日期：1980-01-01 00:00:00

abstract：:The neurochemical specificity of physiological, biochemical, and psychological responses to dextroamphetamine was tested by pretreating volunteers with haloperidol (0.014 mg/kg IM), propranolol (0.1 mg/kg IV), thymoxamine (0.1 mg/kg IV), or placebo prior to 0.3 mg/kg IV amphetamine. Healthy volunteers (N = 12) partici...

journal_title：Psychopharmacology

authors： Nurnberger JI Jr,Simmons-Alling S,Kessler L,Jimerson S,Schreiber J,Hollander E,Tamminga CA,Nadi NS,Goldstein DS,Gershon ES

更新日期：1984-01-01 00:00:00

abstract：RATIONALE AND OBJECTIVE:Depression symptoms are now recognized to be the predominant cause of disability for bipolar disorder (BD) patients. The treatment strategies for the depressed phase of BD remain more anecdotal than data-based. Olanzapine has been investigated as an alternative to antidepressants and a mood stab...

journal_title：Psychopharmacology

authors： Wang M,Tong JH,Huang DS,Zhu G,Liang GM,Du H

更新日期：2014-07-01 00:00:00