Abstract:
:Ten behavioural variables were recorded by means of an automatic holeboard apparatus. The behaviour of rats placed for the first time in the apparatus was recorded for 10 min. The suppression of this exploratory behaviour by the dopamine agonist apomorphine (0.01-0.1 mg/kg) was shown to be reversible in a surmountable fashion by the dopamine antagonist sulpiride (2 and 4 mg/kg). Suppression of exploration induced by clonidine (0.05-0.2 mg/kg) or diazepam (2 mg/kg) was not antagonised by sulpiride (10 and 50 mg/kg, respectively). The partial dopamine D1-agonist SKF 38393 (2-20 mg/kg) also suppressed exploration but neither sulpiride (20 mg/kg) nor the D1-antagonist SCH 23390 (0.02 mg/kg) could antagonise this effect. The data show that dopamine agonist induced suppression of exploration display pharmacological characteristics of a receptor-mediated response and the data support our previous suggestion that these receptors may be pharmacologically distinct from other dopamine D2-receptors.
journal_name
Psychopharmacology (Berl)journal_title
Psychopharmacologyauthors
Ståhle L,Ungerstedt Udoi
10.1007/BF00634456subject
Has Abstractpub_date
1989-01-01 00:00:00pages
75-9issue
1eissn
0033-3158issn
1432-2072journal_volume
99pub_type
杂志文章abstract::The modulation of spontaneous (social and individual) behaviour as a function of the age of the rat (1, 3, 6, 12, 18 and 24 months) and of scopolamine dose (0.1, 0.2, 0.3 and 0.5 mg/kg) was studied. Observations were conducted during the dark phase of the reverse light/dark schedule using a reintroduction procedure. R...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00181945
更新日期:1988-01-01 00:00:00
abstract::Acute tolerance, defined as a decreasing drug effect relative to drug-plasma levels (DPL) over a period of minutes to a few hours, is pronounced following single doses of diazepam or pentobarbital. Both of these lipid-soluble drugs produce an early peak behavioral impairment and subsequent rapid recovery component tha...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00427800
更新日期:1983-01-01 00:00:00
abstract::We have previously demonstrated that depletion of forebrain norepinephrine (NE) led to an attenuation of neophobia in a novel environment, as defined by a greater preference for novel food over familiar food. To study further the role of forebrain NE in neophobia we chronically infused noradrenergic receptor ligands o...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF02253601
更新日期:1992-01-01 00:00:00
abstract::Nine human subjects were exposed to a multiple fixed-ratio (FR) differential-reinforcement-of-low-rate (DRL) schedule of monetary reinforcement. Presses on a manipulandum requiring relatively high force were occasionally followed by an increased money total displayed on a computer screen. Subjects were exposed to the ...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00177913
更新日期:1987-01-01 00:00:00
abstract::Spontaneous and amphetamine-elicited locomotor activity in rats is reduced by most clinically effective antipsychotic drugs. We have recently demonstrated that intracerebroventricular infusion of kainic acid (KA), which produces cell loss in the hippocampus and other limbic-cortical brain regions, increases spontaneou...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s002130050509
更新日期:1998-02-01 00:00:00
abstract::This study was conducted in order to investigate the level of amitriptyline (AT) and its metabolites. Three separate experiments were carried out. In two of these experiments, rats were treated over 7 days with IP doses of AT (10 mg/kg in experiment A and 2 X 20 mg/kg in experiment C). The rats were sacrificed either ...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00431455
更新日期:1984-01-01 00:00:00
abstract::This research compares the effects, in mice and rats, of desmethylclomipramine (DCLOM) and clomipramine (CLOM). DCLOM antagonized the hypothermia induced in mice by reserpine or apomorphine to a much greater extent than CLOM. Reserpine ptosis in mice was depressed by DCLOM only. Similarly, only DCLOM was effective in ...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00432256
更新日期:1982-01-01 00:00:00
abstract::Dose-related effects of ethanol (placebo, 0.30, and 0.60 g/kg) on behavioral and event-related brain potential (ERP) indices of involuntary attention shifting of audition were investigated. ERPs were recorded from 11 healthy social drinkers during a forced-choice reaction-time (RT) task. Subjects were presented with 1...
journal_title:Psychopharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/s002130050801
更新日期:1999-01-01 00:00:00
abstract:RATIONALE:Acute cocaine administration produces an initial rewarding state followed by a dysphoric/anxiogenic "crash." OBJECTIVE:The objective of this study was to determine whether individual differences in the relative value of cocaine's positive and negative effects would account for variations in subsequent drug s...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-015-3873-6
更新日期:2015-07-01 00:00:00
abstract::Recent studies suggest that glucose enhances memory in rodents and humans. The present experiment investigated the effects of glucose on memory performance and blood glucose changes in young adults (19-25 years). Subjects ingested (300 ml beverage) three doses of glucose (0, 30, 100 g) in a random, double-blind, tripl...
journal_title:Psychopharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/BF02244373
更新日期:1991-01-01 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
pub_type: 杂志文章
doi:10.1007/BF00432433
更新日期:1981-01-01 00:00:00
abstract:RATIONALE/OBJECTIVES:The impact of raising glycaemia by ingestion of a glucose drink has revealed cognitive facilitation, particularly for memory and attention. This study aimed to extend current knowledge by examining, for the first time, whether glucose load also moderates task-related (TRT) and task-unrelated though...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-015-3926-x
更新日期:2015-08-01 00:00:00
abstract:RATIONALE:Varenicline is believed to work, in part, by reducing craving responses to smoking cues and by reducing general levels of craving; however, these hypotheses have never been evaluated with craving assessed in the natural environments of treatment-seeking smokers. OBJECTIVES:Ecological momentary assessment pro...
journal_title:Psychopharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00213-012-2698-9
更新日期:2012-09-01 00:00:00
abstract::Amphetamine stimulates locomotor activity, in large part by activating central dopaminergic systems. Serotonin shares on overlapping distribution with dopamine and has been shown to modulate dopaminergic function and dopamine-mediated behaviors. The present study examined whether increasing serotonergic function, via ...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s002130050852
更新日期:1999-02-01 00:00:00
abstract:RATIONALE:Inattentional blindness (IB) is the inability to detect a salient yet unexpected task irrelevant stimulus in one's visual field when attention is engaged in an ongoing primary task. The present study is the first to examine the impact of both task difficulty and alcohol consumption on IB and primary task perf...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-017-4772-9
更新日期:2018-01-01 00:00:00
abstract::The purpose of this study was to examine the relationship between the development of tolerance to ethanol and the hypothalamic-pituitary-adrenal cortex (H-P-AC) system by modifying the H-P-AC system through the use of a synthetic glucocorticoid, dexamethasone. Also this study determined whether repeated drug administr...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00426602
更新日期:1977-03-23 00:00:00
abstract::Biotransformation of phenacetin via O-deethylation to acetaminophen, an index reaction reflecting activity of Cytochrome P450-1A2, was studied in microsomal preparations from a series of human livers. Acetaminophen formation was consistent with a double Michaelis-Menten system, with low-Km (mean Km1 = 68 microM) and h...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s002130050149
更新日期:1996-12-01 00:00:00
abstract:RATIONALE:Acid sensing ion channels (ASICs) are proton-gated ion channels located in the central and peripheral nervous systems. Of particular interest is ASIC1a, which is located in areas associated with fear and anxiety behaviors. Recent reports suggest a role for ASIC1a in preclinical models of fear conditioning and...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-008-1373-7
更新日期:2009-03-01 00:00:00
abstract::Ibogaine is currently being investigated for its potential use as an anti-addictive agent. In the present study we sought to determine whether prior morphine exposure influences the ability of ibogaine to inhibit morphine-induced locomotor stimulation. Female Sprague-Dawley rats were pretreated once a day for 1-4 days...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF02246495
更新日期:1995-10-01 00:00:00
abstract::Keypecking in one group of pigeons was maintained under schedules in which food was presented only when a specified number of responses was followed by a 30-s pause without a response. d-Amphetamine and pentobarbital increased low rates of responding (and, thus, decreased food presentation) only after initial injectio...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00426485
更新日期:1977-07-18 00:00:00
abstract::The effects of phencyclidine (PCP) on locomotor activity were compared to those of the stereoisomers of N-allylnormetazocine (NAN) after acute administration to rats. PCP produced swaying and falling movements, increased sniffing behavior, and enhanced horizontal locomotor activity. d-NAN also induced swaying, falling...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00310633
更新日期:1986-01-01 00:00:00
abstract:RATIONALE:Anticipatory nausea (AN) experienced by chemotherapy patients is resistant to current anti-nausea treatments. In this study, the effect of manipulation of the endocannabinoid (EC) system on a rat model of nausea (conditioned gaping) was determined. OBJECTIVE:The potential of cannabidiol (CBD) and the fatty a...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-007-0970-1
更新日期:2008-02-01 00:00:00
abstract:RATIONALE:There is an emerging body of evidence that implicates a crucial role of γ-aminobutyric acid subtype A (GABAA) receptors in modulating the rewarding effects of a number of abused drugs. Modulation of GABAA receptors may therefore represent a novel drug-class independent mechanism for the development of abuse t...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-015-4155-z
更新日期:2016-02-01 00:00:00
abstract:RATIONALE:Repeated exposure to psychostimulant drugs causes a long-lasting increase in the psychomotor and reinforcing effects of these drugs and an array of neuroadaptations. One such alteration is a hypersensitivity of striatal activity such that a low dose of amphetamine in sensitized animals produces dorsal striata...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-008-1100-4
更新日期:2008-05-01 00:00:00
abstract::A novel form of experimentally-induced conflict behavior based on the conditioned suppression of drinking (CSD) is described and compared with two conventional animal models of human anxiety--a modified Geller-Seifter and an Estes-Skinner (Conditioned Emotional Response) procedure. The CSD procedure offered significan...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00427112
更新日期:1981-01-01 00:00:00
abstract:RATIONALE:Microinjections of ethanol and acetaldehyde into ventral tegmental area (VTA) produce locomotor activation in rats through mechanisms dependent on the mu-opioid receptors. However, it is not clear how these drugs can interact with these receptors. It has been hypothesized that salsolinol could be the responsi...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-009-1751-9
更新日期:2010-03-01 00:00:00
abstract::Patients taking lithium often report difficulties in concentration, memory, learning, and attention and many of these complaints are verified on psychometric testing. Laboratory tests of cognitive functions in healthy volunteers on chronic lithium demonstrate that disruptions in memory-learning processes are apparent ...
journal_title:Psychopharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/BF00427911
更新日期:1985-01-01 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
pub_type: 杂志文章
doi:10.1007/s00213-007-0969-7
更新日期:2008-02-01 00:00:00
abstract::Acute alcohol administration to rats has in preliminary studies been reported to drastically increase the binding of the benzodiazepine (BZ) receptor antagonist [3H]flumazenil (Ro 15-1788) to central BZ receptors. In the present study the effect of acute alcohol ingestion on the disposition of [11C]flumazenil in the h...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF02245135
更新日期:1992-01-01 00:00:00
abstract::Neuroleptic-free schizophrenic patients received caerulein, a potent analogue of cholecystokinin octapeptide, in a fixed- and rising-dose schedule. In addition, neuroleptic-treated patients received a single dose of the peptide with a 4-week follow-up. No significant change in mental status was observed after any of t...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00180843
更新日期:1986-01-01 00:00:00