Abstract:
:The rabbit classical eyeblink conditioning paradigm was used to assess the effects of haloperidol on hippocampal function. Haloperidol disrupted hippocampal activity and conditioned responses (CRs) at low but not high conditioned stimulus (CS) intensities. The observed relationship of hippocampal activity and the CR suggested that the hippocampus encoded sensory features associated with the learned response. Sensory processing by the hippocampus appeared to be altered by haloperidol through attenuation of the ability of a CS to evoke a learned response. Results are discussed in terms of the role of the hippocampus in sensory processing and possible mechanisms for the beneficial effects of haloperidol in schizophrenia. Classical eyeblink conditioning may provide a model system for studying behavioral and biological issues relevant to the etiology and treatment of schizophrenia.
journal_name
Psychopharmacology (Berl)journal_title
Psychopharmacologyauthors
Sears LL,Steinmetz JEdoi
10.1007/s002130050237subject
Has Abstractpub_date
1997-04-01 00:00:00pages
254-60issue
3eissn
0033-3158issn
1432-2072journal_volume
130pub_type
杂志文章abstract::Depression in children is currently an area of considerable controversy, as is the use of potent psychopharmacologic agents in children. Since EEG sleep techniques have proven to be useful in understanding the mechanisms of depression in adults and in predicting their response to antidepressants, a pilot study employi...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00432281
更新日期:1979-01-31 00:00:00
abstract:BACKGROUND:Although ethanol is frequently used in combination with other psychoactive drugs, the behavioral and pharmacological reasons for this form of polydrug abuse have not been well described. MATERIALS AND METHODS:Rhesus monkeys with indwelling intravenous catheters produced intravenous injections of ethanol (50...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-007-0809-9
更新日期:2007-09-01 00:00:00
abstract::Pigeons trained under a two-key drug discrimination procedure eventually learned to discriminate 5 mg/kg phenytoin from saline injections. When 1.25-20 mg/kg doses of phenytoin were substituted for the training dose, the percentage of responses directed to the phenytoin-appropriate key varied directly with dose. Chlor...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00433021
更新日期:1983-01-01 00:00:00
abstract::The effects of d-fenfluramine and morphine on various nociceptive responses of rats were investigated. Unlike morphine, which inhibited all the responses examined, d-fenfluramine inhibited jumping and paw licking of rats on a hot plate, but did not increase the latency of tail withdrawal from hot water. The effects of...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00435276
更新日期:1982-01-01 00:00:00
abstract:RATIONALE:Successive negative contrast (SNC) describes a change in the behaviour of an animal following a downshift in the quantitative or qualitative value of an expected reward. This behavioural response has been hypothesised to be linked to affective state, with negative states associated with larger and/or prolonge...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-015-3905-2
更新日期:2015-08-01 00:00:00
abstract:OBJECTIVE:The pharmacological profile of escitalopram, the S-(+)-enantiomer of citalopram, was studied and compared with citalopram and the R-(-)-enantiomer, R-citalopram. METHODS:Inhibition of the serotonin transporter (5-HTT) was studied in COS-1 cells expressing the human 5-HTT (h-5-HTT) and in rat brain synaptosom...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-002-1364-z
更新日期:2003-06-01 00:00:00
abstract:RATIONALE:Obsessive-compulsive disorder (OCD) gradually emerges and reaches clinical significance during early adulthood. Whether a predisposition for OCD manifests as binge eating disorder earlier during adolescence is proposed. OBJECTIVES:To further characterize how OCD-like behaviors increase across maturation and ...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-015-3967-1
更新日期:2015-09-01 00:00:00
abstract:BACKGROUND:The rise in heroin addiction has heightened the need for novel and effective treatments. Physical exercise has been shown as an effective treatment for stimulant abuse in clinical and pre-clinical research. However, this treatment has not yet been tested on opioid addiction. This study examined the effects o...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-019-05381-2
更新日期:2020-02-01 00:00:00
abstract::Several behaviors associated with the serotonin syndrome have been reported in rats following administration of the 5-HT1A receptor agonist 8-OH-DPAT. The present investigation approached this phenomenon from an ethopharmacological perspective, and provided a detailed temporal analysis of the behavioral effects of thi...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF02247363
更新日期:1993-01-01 00:00:00
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
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/s002130050711
更新日期:1998-10-01 00:00:00
abstract::The authors review the literature regarding the pharmacokinetics of long-acting injectable neuroleptic drugs (LINS). There are important differences between LINS and oral neuroleptics that affect their pharmacokinetics. By avoiding first pass metabolism in gut and liver, LINS result in lower circulating concentrations...
journal_title:Psychopharmacology
pub_type: 杂志文章,评审
doi:10.1007/BF00441937
更新日期:1989-01-01 00:00:00
abstract::The aim of this study was to evaluate the effect on the activity of the hypothalamic-pituitary dopaminergic system of two new atypical antipsychotic drugs: the ergoline derivative SDZ HDC-912, which is a dopamine (DA) D2 receptor partial agonist; and the quinolinone derivative OPC-4392, which acts as an agonist at pre...
journal_title:Psychopharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/BF02246969
更新日期:1993-01-01 00:00:00
abstract::The opioid antagonist effects of systemically administered nor-binaltorphimine (nor-BNI) were evaluated against the kappa agonists CI-977, U69,593, U50,488, ethylketocyclazocine (EKC), Mr2034 and bremazocine, the mu agonist morphine and the alkaloid delta agonist BW-373U86 in the acetic acid-induced writhing assay in ...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF02245071
更新日期:1994-07-01 00:00:00
abstract:RATIONALE:3,4-methylenedioxymethamphetamine (MDMA, ecstasy) produces an acute release of 5-HT in the brain, together with increased locomotion and hyperthermia. OBJECTIVE:This study examined whether the acute functional changes of locomotor activity and body temperature are related to enhanced 5-HT release induced by ...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-010-1921-9
更新日期:2011-02-01 00:00:00
abstract:RATIONALE:Recent studies have shown that metabotropic glutamate receptor 5 (mGluR5) can modulate N-methyl-D-aspartate (NMDA) receptor function in vivo. For example, the mGluR5 antagonist, 2-methyl-6-(phenylethynyl)-pyridine (MPEP) can potentiate PCP (phencyclidine)-evoked hyperactivity and PCP-induced disruptions in pr...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-004-1827-5
更新日期:2004-09-01 00:00:00
abstract::Established social groups of talapoin monkeys show rank-related differences in aggressive, social and sexual behaviours and visual monitoring, as well as in endocrine and monoamine profiles. Here we describe the effects on these variables of an "anxiogenic drug", beta-carboline carboxylic acid ethyl ester (beta-CCE), ...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00179193
更新日期:1986-01-01 00:00:00
abstract:RATIONALE:Recent studies suggest that orexin/hypocretin is involved in drug reward and drug-seeking behaviors, including ethanol self-administration. However, orexin's role in ethanol-induced seeking behaviors remains unclear. OBJECTIVE:These studies examined the role of orexin in the acquisition and expression of eth...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-010-2082-6
更新日期:2011-04-01 00:00:00
abstract::The discriminative stimulus (DS) effect of apomorphine was investigated in rats trained in a two-lever, food-reinforcement procedure. Rats were given subcutaneous injections of saline or 0.1 mg/kg apomorphine HCl, 15 min before training sessions. The training dose of apomorphine was chosen to activate dopamine autorec...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00690928
更新日期:1987-01-01 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
pub_type: 杂志文章
doi:10.1007/BF02245745
更新日期:1990-01-01 00:00:00
abstract::This study demonstrates that the selective delta receptor antagonists ICI 174864 and naltrindole (NTI) attenuate alcohol intake in a dose-dependent manner, without altering water intake, in rats selectively bred for alcohol preference. ICI 174864 had a very limited duration of action, as evidenced by the fact that sup...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF02246191
更新日期:1995-07-01 00:00:00
abstract:RATIONALE:Glucocorticoids have been shown to affect declarative memory, an explicit form of memory for facts and events operated by medial temporal lobe structures. Recent neuroimaging data suggest that the medial temporal lobe (including the hippocampus) is also active in implicit sequence learning. OBJECTIVES:The ai...
journal_title:Psychopharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00213-010-2112-4
更新日期:2011-05-01 00:00:00
abstract:RATIONALE:Rats selectively bred for high saccharin (HiS) intake consume more alcohol and acquire intravenous (i.v.) cocaine self-administration more rapidly than their low saccharin (LoS)-consuming counterparts. The present experiment was designed to determine whether HiS and LoS rats differed in other aspects of drug ...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-006-0600-3
更新日期:2007-02-01 00:00:00
abstract::Bromocriptine (0.5-6.0 mg/day) was administered to seven unmedicated chronic schizophrenic and two schizoaffective patients. Transient slight improvement was noted in four patients and marked improvement in one other. Clinical improvement was associated with nausea and drowsiness. These doses of bromocriptine stimulat...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00439271
更新日期:1983-01-01 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
pub_type: 杂志文章
doi:10.1007/s00213-005-2163-0
更新日期:2005-07-01 00:00:00
abstract::Twelve healthy chronic schizophrenic patients were treated with the long-acting oral dopamine (DA) receptor blocker penfluridol (100 mg orally) for 6 weeks. Plasma prolactin (PRL) levels were measured during insulin-tolerance tests (ITT) performed at the end of the drug-free period (7-10 days) and during weeks 1 and 6...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00427494
更新日期:1983-01-01 00:00:00
abstract::Efforts to find a correlation between serum levels of chlorpromazine (CPZ) and clinical effect have been rather unsuccessful, which could be due to fluctuations of CPZ and CPZ metabolite levels during treatment, the complicated metabolism of CPZ, or to varying degrees of protein binding. Using a mass fragmentographic ...
journal_title:Psychopharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/BF00431102
更新日期:1981-01-01 00:00:00
abstract::Various doses of the non-competitive N-methyl-D-aspartate (NMDA) receptor antagonists, MK-801 (0.1-0.5 mg/kg) and ketamine (2.5-10 mg/kg), produced a dose-dependent increase in stereotypic behaviour in naive mice. MK-801 (0.1 mg/kg) and ketamine (2.5 mg/kg) potentiated the stereotypic response of apomorphine (0.1-0.5 ...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF02245171
更新日期:1992-01-01 00:00:00
abstract:RATIONALE:In cell culture systems, agonists can promote the phosphorylation and internalization of receptors coupled to G proteins (GPCR), leading to their desensitization. However, in the CNS opioid agonists promote a profound desensitization of their analgesic effects without diminishing the presence of their recepto...
journal_title:Psychopharmacology
pub_type: 杂志文章,评审
doi:10.1007/s00213-005-2248-9
更新日期:2005-06-01 00:00:00
abstract::Peripheral administration of the unsulphated cholecystokinin octapeptide (CCK-8us) led to an anxiogenic-like action in the elevated plus-maze model of anxiety in rats. Devazepide and L-365,260 showed potent anxiolytic-like effects at similar doses. The fact that devazepide is 1000 times more potent as a CCK-A receptor...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF02244646
更新日期:1993-01-01 00:00:00
abstract:RATIONALE:Most adult smokers start smoking during their adolescence. This adolescent initiation may be due to multiple factors, but little evidence is available regarding whether their brains are differentially sensitive to the addictive effects of nicotine during adolescence. OBJECTIVE:To test the hypothesis that ado...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-003-1758-6
更新日期:2004-07-01 00:00:00