Abstract:
:Nicotine has been reported to increase or decrease measures of activity in rats, including locomotor activity and rearing. Nicotine dose and repeated exposure to nicotine are known to be important factors in determining the effects on locomotor behavior. Less information has been gathered on rearing and other measures of activity. Rats were tested repeatedly, once per day, in Digiscan automated activity analyzers that reported 19 measures of activity. Each rat was given the same drug and dose each day, either saline or 0.1, 0.2, or 0.4 mg/kg nicotine. The 19 measures were combined or modified to produce 14 measures that were examined using factor analysis to help select the most independent measures. Four measures were selected to describe the effects of dose and to compare day 1 results with day 5 results. Total distance moved was increased in a dose-related fashion and was greater on day 5 than on day 1. Rearing was increased at low doses and decreased at high doses on both days. Stereotypy was increased approximately the same amount by all three doses, and was greater on day 5 than on day 1. Center time was increased by the highest dose on both days. These results once again point out the influences of repeated testing and repeated nicotine exposure on behavior. They may also help to clarify why some studies have reported that both ambulation and rearing are increased after nicotine whereas others find opposite effects.
journal_name
Psychopharmacology (Berl)journal_title
Psychopharmacologyauthors
Ksir Cdoi
10.1007/BF02244758subject
Has Abstractpub_date
1994-06-01 00:00:00pages
105-9issue
1-2eissn
0033-3158issn
1432-2072journal_volume
115pub_type
杂志文章abstract::Exposure to 10 min of footshock stress (1 mA; 0.5 s on, with a mean off period of 40 s) reinstated heroin-seeking behavior in heroin-experienced, drug-free rats after many sessions of extinction and up to 6 weeks after last exposure to heroin. In reinstating the behavior, the footshock mimicked the effect of a non-con...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF02246300
更新日期:1995-06-01 00:00:00
abstract:RATIONALE:Greater incidence of anxiety and depressive disorders of women compared to men may be due in part to progesterone (P) and its neuroactive metabolite, 5alpha-pregnan-3alpha-ol-20-one (3alpha,5alpha-THP), acting in limbic regions, such as the amygdala. OBJECTIVE:If P's metabolism via 5alpha-reduction to 3alpha...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-005-0100-x
更新日期:2006-06-01 00:00:00
abstract:INTRODUCTION:Alterations in protein kinase (PKA) protein levels have been implicated in the regulation of responses to and development of cocaine addiction. However, the contribution of differences in PKA intracellular cascade to the known sex differences in responses to cocaine is not well understood. This study exami...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-008-1411-5
更新日期:2009-04-01 00:00:00
abstract:OBJECTIVE:Recent data suggest that 5-HT7 receptors (5-HT7R) are involved in memory processes and, particularly, those related to novelty-induced arousal, even though this remains so far speculative and controversial. In order to assess the role of 5-HT7R in episodic-like memory, mice were administered 5-carboxamidotryp...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-013-3247-x
更新日期:2014-01-01 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
pub_type: 杂志文章
doi:10.1007/BF00310626
更新日期:1986-01-01 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
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00213-015-3882-5
更新日期:2015-07-01 00:00:00
abstract:RATIONALE:Studies of ethanol's effects on TSH carried out during the daytime, when its secretion is at its nadir, do not reflect the true action of alcohol on TSH secretion since TSH peak occurs at night. OBJECTIVE:The present study investigated the effects of alcohol on the serum concentrations of TSH in healthy volu...
journal_title:Psychopharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/s00213-003-1532-9
更新日期:2003-11-01 00:00:00
abstract:RATIONALE:Comorbidity with gambling disorder (GD) and alcohol use disorder (AUD) is well documented. OBJECTIVE:The purpose of our study was to examine the influence of genetic alcohol drinking tendency on reward-guided decision making behavior of rats and the impact of dopamine releaser D-amphetamine on this behavior....
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-018-4847-2
更新日期:2018-05-01 00:00:00
abstract::Medial thalamic (MT), and hippocampal (HPC) EEG, and single unit activity, and frontal cortical (CTX) EEG were recorded following IV infusions of 0.625 mg morphine/kg in drug-naive, and following 0.0125 mg naloxone/kg in morphine-dependent paralyzed rats. Particular effort was made to assess the latency of the respons...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00433246
更新日期:1980-01-01 00:00:00
abstract:RATIONALE:Repeated methamphetamine (MA) use leads to increases in the incentive motivational properties of the drug as well as cognitive impairments. These behavioral alterations persist for some time following abstinence, and neuroadaptations in the structure and function of the prefrontal cortex (PFC) are particularl...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-014-3840-7
更新日期:2015-06-01 00:00:00
abstract:RATIONALE:Antiepileptic drugs are known to produce side effects which may impair driving performance. Performance effects, however, may differ substantially between individual antiepileptic drugs. OBJECTIVE:To compare the effects of carbamazepine, remacemide, and placebo on actual driving performance during a 12-day i...
journal_title:Psychopharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/s002130100898
更新日期:2002-01-01 00:00:00
abstract:RATIONALE:Animal models of relapse to drug abuse typically assess the ability of various manipulations to reinstate responding that has ceased due to non-reinforcement (extinction). However, there is a lack of information concerning the reinstatement of responding that has ceased for reasons other than extinction. OBJ...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-002-1193-0
更新日期:2003-07-01 00:00:00
abstract::Three adult baboons were trained using a psychophysical procedure to discriminate between different synthetic vowel sounds [symbol: see text]. Baboons pressed and held a lever down to produce a pulsed train of a single reference vowel that served as the standard stimulus. Animals were trained to release the lever only...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF02246089
更新日期:1995-11-01 00:00:00
abstract::The cataleptogenic effect of delta 9-THC was compared to its discriminative stimulus effects in rats. The ED50s for the discriminative stimulus and catalepsy were 0.8 and 4.0 mg/kg, respectively, while their time courses were very similar. The ED50 of delta 9-THC for catalepsy in experimentally naive rats was not diff...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF02244975
更新日期:1992-01-01 00:00:00
abstract:RATIONALE:Cannabinoid antagonists purportedly have greater effects in reducing the intake of highly palatable food compared to less palatable food. However, this assertion is based on free-feeding studies in which the amount of palatable food eaten under baseline conditions is often confounded with other variables, suc...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-013-3366-4
更新日期:2014-05-01 00:00:00
abstract:RATIONALE:The precise neural circuitry that encodes fear memory and its extinction within the brain are not yet fully understood. Fearful memories can be persistent, resistant to extinction, and associated with psychiatric disorders, especially post-traumatic stress disorder (PTSD). Here, we investigated the microtopog...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-018-5068-4
更新日期:2019-01-01 00:00:00
abstract::Corticotropin releasing factor (CRF), a neuropeptide secreted by hypothalamic and extrahypothalamic neurons, is thought to mediate stress-related behaviors. The tension reduction hypothesis suggests that ethanol drinking reduces stress; that drinking is reinforced by this reduced stress; and that the probability of dr...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s002130050697
更新日期:1998-09-01 00:00:00
abstract:RATIONALE:Opioid use disorder (OUD) is a major epidemic in the USA. Despite evidence indicating that OUD may be particularly severe for women, preclinical models have yet to establish sex as a major factor in OUD. OBJECTIVES:Here, we examined sex differences in vulnerability to relapse following intermittent access fe...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-020-05750-2
更新日期:2021-01-06 00:00:00
abstract:RATIONALE:Marijuana and alcohol, when used separately and in combination, contribute to automobile accidents and failed sobriety tests of standing balance. However, the extent to which the drugs have additive effects on both of these measures is unknown. OBJECTIVES:This study was designed to compare directly the separ...
journal_title:Psychopharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/s00213-002-1124-0
更新日期:2002-10-01 00:00:00
abstract:RATIONALE:Serotonin and especially serotonin 2A (5-HT(2A)) receptor signaling are important in the etiology and treatment of schizophrenia and affective disorders. We previously reported a novel 5-HT(2A) receptor effector, increased transglutaminase (TGase)-catalyzed transamidation, and activation of the small G protei...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-010-1984-7
更新日期:2011-02-01 00:00:00
abstract:RATIONALE:One third of US smokers are intermittent smokers (ITS) who do not smoke daily. Unlike daily smokers (DS), whose smoking is negatively reinforced by withdrawal relief, ITS may be motivated by immediate positive reinforcement. In contrast, incentive salience theory posits hypothesis that "liking" of drug effect...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-017-4682-x
更新日期:2017-10-01 00:00:00
abstract:RATIONALE:Repetitive cocaine exposure has been shown to induce GABAergic thalamic alterations. Given the key role of T-type (Ca(V)3) calcium channels in thalamocortical physiology, the direct involvement of these calcium channels in cocaine-mediated effects needs to be further explored. OBJECTIVE:The objective of this...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-010-1947-z
更新日期:2010-10-01 00:00:00
abstract::Metergoline given IP reduced the response to noxious stimulation in the mouse formalin test. Tolerance to this effect developed after a chronic treatment schedule consisting of ten daily injections of 5 mg/kg. Twenty four hours after the last injection a test dose of metergoline (2.5 mg/kg) reduced the licking time in...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF02439580
更新日期:1987-01-01 00:00:00
abstract::A variety of behaviors were studied in an open-field setting after i.v. amphetamine (0.5, 2.0, 8.0 mg/kg), phenmetrazine (1.0, 4.0, 16.0 mg/kg), or fenfluramine (1.0, 4.0, 16.0 mg/kg). Amphetamine and phenmetrazine increased ambulation initially and rearing during the whole experiment, and decreased grooming. At 30 an...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF01457847
更新日期:1977-12-19 00:00:00
abstract::In a double-blind comparison of haloperidol decanoate and fluphenazine decanoate given 4-weekly for 60 weeks as maintenance therapy in 38 chronic schizophrenic in-patients, plasma haloperidol, fluphenazine and prolactin levels were measured at regular intervals by radioimmunoassay. After the first injection, the mean ...
journal_title:Psychopharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/BF02244140
更新日期:1990-01-01 00:00:00
abstract::In the conditioned reinforcement paradigm, animals learn a new instrumental response reinforced solely by conditioned reward (a stimulus that has previously been associated with primary reward). It has been shown that psychostimulants potentiate responding for conditioned reward and there is evidence that the nucleus ...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF02244202
更新日期:1991-01-01 00:00:00
abstract:RATIONALE:Psychostimulant sensitization heightens behavioral and motivational responses to reward-associated stimuli; however, its effects on stimuli associated with reward absence are less understood. OBJECTIVES:We examined whether amphetamine sensitization alters performance during Pavlovian-instrumental transfer (P...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-013-3144-3
更新日期:2013-11-01 00:00:00
abstract:RATIONALE:Alcohol intoxication can dampen negative affective reactions to stressors. Recently, it has been proposed that these acute anxiolytic effects of alcohol may extend to dampening of negative affective reactions to error commission during cognitive control tasks. Nonetheless, empirical verification of this claim...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-020-05619-4
更新日期:2020-11-01 00:00:00
abstract:RATIONALE:Schizophrenia is a complex neuropsychiatric disorder characterized, in part, by impaired dopamine signaling. TAK-063 is a selective inhibitor of phosphodiesterase 10A, a key regulator of intracellular signaling pathways that is highly expressed in the striatum. OBJECTIVE:Safety, tolerability, and pharmacokin...
journal_title:Psychopharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00213-016-4412-9
更新日期:2016-10-01 00:00:00
abstract:BACKGROUND:Opioid neurotransmission mediates hedonic value of sweet tastants; their intake may be exaggerated by the consumption of exogenous opioids (e.g., opioid dependence). Sweet Taste Test (STT) is a validated quantitative instrument assessing taste perception and hedonic features of sugar (sucrose) using a random...
journal_title:Psychopharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00213-011-2503-1
更新日期:2012-04-01 00:00:00