Arousal and the pupil: why diazepam-induced sedation is not accompanied by miosis.

abstract：:A continuous intravenous infusion of the opiate receptor antagonist naloxone, at doses ranging from 0.7 to 1.0 micrograms/kg/min (total dose 8.8-13.2 mg), was performed in eight normal subjects during the first 240 min of night sleep. A significant reduction in stage REM and in stage 4 percent duration was observed. P...

journal_title：Psychopharmacology

authors： Cianchetti C,Masala C,Olivari P,Giordano G

更新日期：1984-01-01 00:00:00

abstract：RATIONALE:Previous experiments have shown that d-amphetamine disrupts timing behaviour in rats. It has been proposed that d-amphetamine's effects reflect a reduction in the period of the pacemaker of the hypothetical internal clock. However, some studies have obtained conflicting results. OBJECTIVE:To examine the effe...

journal_title：Psychopharmacology

authors： Chiang TJ,Al-Ruwaitea AS,Mobini S,Ho MY,Bradshaw CM,Szabadi E

更新日期：2000-06-01 00:00:00

abstract：:Twenty-one (three groups of seven), men and women, 25-50 years of age were studied to determine whether or not rebound insomnia would increase the likelihood of self administering a benzodiazepine (triazolam 0.25 mg) hypnotic. The groups compared were patients with insomnia and disturbed sleep, insomnia and normal sle...

journal_title：Psychopharmacology

authors： Roehrs T,Merlotti L,Zorick F,Roth T

更新日期：1992-01-01 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：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:The gut microbiota is increasingly recognized as a potential mediator of psychiatric diseases. Depressed patients have been shown to have a different microbiota composition compared with healthy controls, and several lines of research now aim to restore this dysbiosis. To develop novel treatments, preclinical...

journal_title：Psychopharmacology

authors： Tillmann S,Abildgaard A,Winther G,Wegener G

更新日期：2019-05-01 00:00:00

abstract：RATIONALE:Caffeine is present in many widely consumed drinks and some foods. In the fairly extensive literature on the psychostimulant effects of caffeine, there are few dose-response studies and even fewer studies of the effects of doses of caffeine lower than 50 mg (the range of the amounts of caffeine contained in, ...

journal_title：Psychopharmacology

authors： Smit HJ,Rogers PJ

更新日期：2000-10-01 00:00:00

abstract：:Augmentation with low-dose fluvoxamine (50-100 mg/day) to antipsychotic treatment may improve the negative symptoms in schizophrenic patients, but involves a risk of drug-drug interaction. We studied the effects of fluvoxamine on plasma concentrations of haloperidol and reduced haloperidol, and their clinical symptoms...

journal_title：Psychopharmacology

authors： Yasui-Furukori N,Kondo T,Mihara K,Inoue Y,Kaneko S

更新日期：2004-01-01 00:00:00

abstract：RATIONALE:Investigations of the neural consequences of the effects of cocaine on cognition have centered on specific brain circuits including prefrontal cortex, medial temporal lobe and striatum and their roles in controlling drug dependent behavior and addiction. These regions are critical to many aspects of drug abus...

journal_title：Psychopharmacology

authors： Hampson RE,Porrino LJ,Opris I,Stanford T,Deadwyler SA

更新日期：2011-01-01 00:00:00

abstract：:The thymoleptics potentiate and modify the behavioral effects of apomorphine (probably the most specific dopaminergic agonist) as well as those of Dopa. The effect of the thymoleptics is not abolished by emptying of amine stores, and this together with other evidence suggests that these drugs facilitate the access of ...

journal_title：Psychopharmacology

authors： Molander L,Randrup A

更新日期：1976-09-17 00:00:00

abstract：RATIONALE:Impulsive behavior is associated with both alcohol use disorders and a family history of alcoholism (FHA). One operational definition of impulsive behavior is the stop-signal task (SST) which measures the time needed to stop a ballistic hand movement. OBJECTIVE:Employ functional magnetic resonance imaging (f...

journal_title：Psychopharmacology

authors： Kareken DA,Dzemidzic M,Wetherill L,Eiler W 2nd,Oberlin BG,Harezlak J,Wang Y,O'Connor SJ

更新日期：2013-07-01 00:00:00

abstract：RATIONALE:Premature discontinuation of antidepressant drugs is a frequent clinical problem. Adverse effects are common, occur early on in treatment and are reported to be one of the main reasons for discontinuation of antidepressant treatment. OBJECTIVES:To investigate the association between adverse effects occurring...

journal_title：Psychopharmacology

authors： Crawford AA,Lewis S,Nutt D,Peters TJ,Cowen P,O'Donovan MC,Wiles N,Lewis G

更新日期：2014-08-01 00:00:00

abstract：RATIONALE:Caffeine is commonly believed to offset the acute effects of alcohol, but some evidence suggests that cognitive processes remain impaired when caffeine and alcohol are coadministered. OBJECTIVES:No previous study has investigated the separate and joint effects of alcohol and caffeine on conflict monitoring a...

journal_title：Psychopharmacology

authors： Bailey K,Amlung MT,Morris DH,Price MH,Von Gunten C,McCarthy DM,Bartholow BD

更新日期：2016-04-01 00:00:00

abstract：:Several studies have demonstrated a paradoxical form of antinociception induced by the repeated administration of opioid antagonists accompanied by exposure to a painful stimulus. The underlying mechanism of this naloxone-induced antinociception (NIA) is still unknown, but the results of several studies suggest that i...

journal_title：Psychopharmacology

authors： Walker MJ,Poulos CX,Le AD

更新日期：1994-01-01 00:00:00

abstract：:The behavioral effects of the benzodiazepine (BZP)-receptor partial inverse agonists, beta-CCE and FG 7142, are reviewed and the claim that these compounds possess "anxiogenic" properties is examined. Results obtained from human studies and global observations in animals, as well as those from experiments on aggressio...

journal_title：Psychopharmacology

authors： Thiébot MH,Soubrié P,Sanger D

更新日期：1988-01-01 00:00:00

abstract：RATIONALE:Spontaneous fluctuations in the size of the pupil in darkness are a recognized index of sleepiness, and these fluctuations can be quantitatively measured using the pupillographic sleepiness test (PST). The central noradrenergic system is believed to play a role in the maintenance of alertness, and there is ev...

journal_title：Psychopharmacology

authors： Phillips MA,Szabadi E,Bradshaw CM

更新日期：2000-05-01 00:00:00

abstract：INTRODUCTION:Dopamine D2 receptor occupancy levels needed for the maintenance treatment of schizophrenia remain to be elucidated. We examined 3-year clinical outcomes of patients with schizophrenia who received long-acting injectable risperidone (LAI risperidone) at baseline and investigated their dopamine D2 receptor ...

journal_title：Psychopharmacology

authors： Ikai S,Suzuki T,Mimura M,Uchida H

更新日期：2016-12-01 00:00:00

abstract：:The discriminative stimulus effect of midazolam, a short-acting benzodiazepine, was used for testing the effects of drugs thought to act as antagonists at different sites in the proposed benzodiazepine receptor complex. Rats were trained in a standard two-bar operant conditioning procedure with food reinforcers delive...

journal_title：Psychopharmacology

authors： Stolerman IP,Garcha HS,Rose IC

更新日期：1986-01-01 00:00:00

abstract：:Oral administration of the serotonin (5-HT) precursor L-5-hydroxytryptophan (5-HTP), 200 mg, significantly increased plasma cortisol levels in man. L-5-HTP had no significant effect on the plasma prolactin levels. A borderline effect of 5-HTP on plasma ACTH levels was found. Pretreatment with the 5-HT2/5-HT1c antagoni...

journal_title：Psychopharmacology

authors： Lee MA,Nash JF,Barnes M,Meltzer HY

更新日期：1991-01-01 00:00:00

abstract：:The behavioral performance of inbred mouse strains was examined in animal models of anxiety to evaluate the potential contribution of genetic factors to fear-motivated behaviors. The preference that randomly bred mice and rats exhibit for the enclosed as opposed to the open arms of an elevated maze has been considered...

journal_title：Psychopharmacology

authors： Trullas R,Skolnick P

更新日期：1993-01-01 00:00:00

abstract：RATIONALE:Combining neuroleptics with 5-HT1A ligands is thought to improve the preclinical profile of neuroleptics and may be of interest in the development of new compounds that have greater therapeutic potential and/or are better tolerated. OBJECTIVE:To examine 1) the ability of 5-HT1A ligands to alter the effects o...

journal_title：Psychopharmacology

authors： Prinssen EP,Kleven MS,Koek W

更新日期：1999-05-01 00:00:00

abstract：:The inferior colliculus is involved in conveying auditory information of an aversive nature to higher cortical structures. Gradual increases in the electrical stimulation of this structure produce progressive aversive responses from vigilance, through freezing, until escape. Recently, we have shown that microinjection...

journal_title：Psychopharmacology

authors： Pandossio JE,Brandão ML

更新日期：1999-03-01 00:00:00

abstract：RATIONALE:Understanding the mechanisms responsible for stress-induced relapse is important for guiding treatment strategies aimed at minimizing the contribution of stress to addiction. Evidence suggests that these mechanisms involve interactions between noradrenergic systems and the neuropeptide corticotropin-releasing...

journal_title：Psychopharmacology

authors： McReynolds JR,Vranjkovic O,Thao M,Baker DA,Makky K,Lim Y,Mantsch JR

更新日期：2014-10-01 00:00:00

abstract：RATIONALE:Drug addiction is a chronically relapsing disorder characterised by compulsive drug use and loss of control over drug intake. Although several theories propose impulsivity as a key component of addiction, the precise nature of this relationship remains unclear. OBJECTIVES:This study aims to investigate the s...

journal_title：Psychopharmacology

authors： Kolokotroni KZ,Rodgers RJ,Harrison AA

更新日期：2012-01-01 00:00:00

abstract：RATIONALE:Orexins A and B have recently been discovered and shown to be derived from preproorexin, primarily expressed in the rat hypothalamus. Orexin-A has been ascribed a number of in vivo functions in the rat after intracerebroventricular (ICV) administration, including hyperphagia, neuroendocrine modulation and, mo...

journal_title：Psychopharmacology

authors： Duxon MS,Stretton J,Starr K,Jones DN,Holland V,Riley G,Jerman J,Brough S,Smart D,Johns A,Chan W,Porter RA,Upton N

更新日期：2001-01-01 00:00:00

abstract：RATIONALE:The circumstances of drug taking are thought to play a role in drug abuse but the evidence of it is anecdotal. Previous studies have shown that the intravenous self-administration of cocaine is facilitated in rats non-residing in the test chambers relative to rats that live in the test chambers at all times. ...

journal_title：Psychopharmacology

authors： Caprioli D,Celentano M,Paolone G,Lucantonio F,Bari A,Nencini P,Badiani A

更新日期：2008-06-01 00:00:00

abstract：:A placebo-controlled study with six normal volunteers was carried out using 1 mg haloperidol IM. In some EEG frequency bands, the power density due to haloperidol appeared to increase or decrease depending on the subject. Nevertheless, if the results of the six subjects are taken together, the effects of haloperidol a...

journal_title：Psychopharmacology

authors： Wieneke GH,Verhoeven WM,Westenberg HG,de Wilde H,Lopes da Silva FH,van Praag M,Storm van Leeuwen W

更新日期：1981-01-01 00:00:00

abstract：RATIONALE:A glutamate-dopamine interaction has been implicated in the psychosis-like effects of glutamate N-methyl- D-aspartate (NMDA) receptor antagonists, such as phencyclidine and ketamine. However, recent imaging studies addressing striatal glutamate-dopamine interaction directly in vivo in man have been controvers...

journal_title：Psychopharmacology

authors： Aalto S,Hirvonen J,Kajander J,Scheinin H,Någren K,Vilkman H,Gustafsson L,Syvälahti E,Hietala J

更新日期：2002-12-01 00:00:00

abstract：:The effect of the intravenous administration of ergot alkaloids on epileptic responses to intermittent photic stimulation )IPS) has been studied in adolescent baboons, Papio papio, from Senegal. Ergocornine, 1--2 mg/kg, produced marked autonomic and behavioural effects, slowed the EEG, and abolished myoclonic response...

journal_title：Psychopharmacology

authors： Anlezark G,Meldrum B

更新日期：1978-04-14 00:00:00

abstract：RATIONALE:Pre-clinical and clinical studies have suggested that the antidepressant efficacy of escitalopram (ESC) can be augmented by co-administration of aripiprazole (ARI). OBJECTIVE:To establish if the effects of ESC + ARI can be altered by modulating the 5-HT1a receptor. METHODS:Sprague-Dawley male rats received ...

journal_title：Psychopharmacology

authors： Lapointe T,Hudson R,Daniels S,Melanson B,Zhou Y,Leri F

更新日期：2019-07-01 00:00:00