The effects of mixing on behavior and circadian parameters of salivary cortisol in pigs.

abstract：:California mice (Peromyscus californicus) breed primarily during the winter rainy season and generally terminate breeding during the dry summer months. This pattern of reproduction could be regulated by day length, availability of green vegetation, or water availability. The effects of photoperiod and green vegetation...

journal_title：Physiology & behavior

authors： Nelson RJ,Gubernick DJ,Blom JM

更新日期：1995-06-01 00:00:00

abstract：:Winning competitions has been shown to lead to higher testosterone (T) relative to losing in men and males of other species. In Experiment 1, 38 women and 37 men provided a saliva sample, completed a novel computer-based vocabulary competition task at which they won or lost based on their own ability, provided feedbac...

journal_title：Physiology & behavior

authors： van Anders SM,Watson NV

更新日期：2007-03-16 00:00:00

abstract：:Social agonistic behaviour of intact male rats is strongly reduced by the experience of defeat by a dominant male conspecific. Small electrolytic lesions in the corticomedial amygdala strongly affected this behavioural change due to defeat. No effects of the lesions were observed before and during the defeat. Some lea...

journal_title：Physiology & behavior

authors： Bolhuis JJ,Fitzgerald RE,Dijk DJ,Koolhaas JM

更新日期：1984-04-01 00:00:00

abstract：:Ghrelin, an acylated upper gastrointestinal peptide, is the only known orexigenic hormone. Considerable evidence implicates ghrelin in mealtime hunger and meal initiation. Circulating levels decrease with feeding and increase before meals, achieving concentrations sufficient to stimulate hunger and food intake. Prepra...

journal_title：Physiology & behavior

authors： Cummings DE

更新日期：2006-08-30 00:00:00

abstract：:The aim of this study was to evaluate the effects of intraspecific social exposure (socialization vs rest) and habituation factors on the levels of urinary serotonin and cortisol [corrected respectively for creatinine to give the serotonin-creatinine ratio (5-HT/Cr) and cortisol-creatinine ratio (C/Cr)] and how they f...

journal_title：Physiology & behavior

authors： Alberghina D,Piccione G,Pumilia G,Gioè M,Rizzo M,Raffo P,Panzera M

更新日期：2019-07-01 00:00:00

abstract：:Exposure of rats to an open-field results in a rapid rise in body temperature. Fifty-four percent of this rise in body temperature was blocked by intracerebroventricular administration of the antipyretic drug sodium salicylate. Intraperitoneal administration of indomethacin, a potent blocker of prostaglandin productio...

journal_title：Physiology & behavior

authors： Kluger MJ,O'Reilly B,Shope TR,Vander AJ

更新日期：1987-01-01 00:00:00

abstract：:Sexually naïve female mice are not sexually receptive in their first mating opportunity. Four to five sexual encounters are needed to display high sexual receptivity as assessed by the lordosis reflex. The neuronal changes induced by sexual experience are not well understood. In this study, we evaluated if repeated se...

journal_title：Physiology & behavior

authors： Marco-Manclus P,Paredes RG,Portillo W

更新日期：2020-08-01 00:00:00

abstract：:Infusions of cholecystokinin (CCK) may exert their effects on appetite by inducing feelings of nausea or anxiety. In this double blind, placebo controlled crossover study, the impact of these effects on appetite were examined. Fifteen male subjects received a 20 min i.v. infusion of cholecystokinin octapeptide (CCK-8)...

journal_title：Physiology & behavior

authors： Greenough A,Cole G,Lewis J,Lockton A,Blundell J

更新日期：1998-11-15 00:00:00

abstract：:The changes in the acquisition of conditioned avoidance responses (CARs) and the performance of some spontaneous behaviors were examined across the estrous cycle of female rats. CARs were facilitated during diestrus, impaired at proestrus and practically abolished at estrus and metestrus. Motor activity and head shaki...

journal_title：Physiology & behavior

authors： Diaz-Veliz G,Soto V,Dussaubat N,Mora S

更新日期：1989-09-01 00:00:00

abstract：:Sodium deficiency reliably produces a robust intake of saline in rats, which is associated with an increased preference for sodium solutions at hypertonic concentrations that would normally be avoided. The mechanisms underlying the shift to an increased preference for sodium in the deficient state are not well underst...

journal_title：Physiology & behavior

authors： Na ES,Morris MJ,Johnson AK

更新日期：2012-05-15 00:00:00

abstract：:We examined the time course and sex differences of the glucocorticoid response to forced, moderate-intensity treadmill exercise in outbred laboratory house mice. Mice (n = 64 total) were divided into eight groups, each of four males and four females, which were run on a motorized treadmill at 1.0 km/h for either 0, 2,...

journal_title：Physiology & behavior

authors： Coleman MA,Garland T Jr,Marler CA,Newton SS,Swallow JG,Carter PA

更新日期：1998-01-01 00:00:00

abstract：:The present study used the context preexposure facilitation effect (CPFE) to examine long-term retention of incidental context learning in periweanling, adolescent and adult rats. The CPFE is a variant of contextual fear conditioning in which encoding the context representation, associating this representation with sh...

journal_title：Physiology & behavior

authors： Robinson-Drummer PA,Stanton ME

更新日期：2015-09-01 00:00:00

abstract：:To test the hypothesis that testosterone (T) sexually differentiates gonadotropin secretion and sexual behavior by inducing synthesis of messenger RNA (mRNA), newborn female rats received intrahypothalamic infusions of saline or cordycepin, an adenosine analogue that preferentially inhibits synthesis of polyadenylated...

journal_title：Physiology & behavior

authors： Ulibarri C,Yahr P

更新日期：1987-01-01 00:00:00

abstract：:The purpose of the present study was a description of hormonal profiles in female prairie voles (Microtus ochrogaster) in estrus that was induced by male exposure versus postpartum estrus. Hormonal profiles are reported in sexually naive females and in sexually experienced females, as a function of varying amounts of ...

journal_title：Physiology & behavior

authors： Carter CS,Witt DM,Manock SR,Adams KA,Bahr JM,Carlstead K

更新日期：1989-12-01 00:00:00

abstract：:Others have shown that frontally dominant EEG activity of around 7-8 Hz is linked to ongoing cognitive performance. Interestingly, we have found that this EEG activity is particularly evident during the relatively artefact-free period following "lights out" at bedtime when people report "thinking" when lying relaxed i...

journal_title：Physiology & behavior

authors： Anderson C,Horne JA

更新日期：2004-06-01 00:00:00

abstract：:Positive reinforcement (e.g., appetitive, rewarding properties) has often been hypothesized to maintain excessive intake of palatable foods. Recently, rats receiving intermittent access to high sucrose diets showed binge-like intake with withdrawal-like signs upon cessation of access, suggesting negative reinforcement...

journal_title：Physiology & behavior

authors： Parylak SL,Cottone P,Sabino V,Rice KC,Zorrilla EP

更新日期：2012-09-10 00:00:00

abstract：:Neonatal monosodium glutamate (MSG) treatment has been associated with dysfunctions in stress responses. Therefore, the present study aimed at examining the acoustic startle response (ASR) in MSG-treated rats and the effects of fetal neural transplantation. Male and female rats were given MSG (4 mg/g) or saline on alt...

journal_title：Physiology & behavior

authors： Yang FC,Connor J,Patel A,Doat MM,Romero MT

更新日期：2000-05-01 00:00:00

abstract：:Single unit activities from the olfactory bulb were recorded during sniffing in unanesthetized rats. Spectral analyses by the Walsh transform were applied to the spike trains of units. In addition, inter-spike intervals (ISIs) were measured to estimate post-spike excitability and serial correlations. The modulation of...

journal_title：Physiology & behavior

authors： Ogawa Y

更新日期：1998-07-01 00:00:00

abstract：:In unanesthetized cats the emetic action of an injection of nicotine into the cerebral ventricle through chronically implanted cannulae was investigated. Nicotine injected in doses of 0.02-1.0 mg produced dose-dependent vomiting, which was abolished after ablation of the area postrema. However, copper sulfate given in...

journal_title：Physiology & behavior

authors： Beleslin DB,Krstić SK

更新日期：1987-01-01 00:00:00

abstract：:Osmoregulatory mechanisms can be vulnerable to electrolyte and/or endocrine environmental changes during the perinatal period, differentially programming the developing offspring and affecting them even in adulthood. The aim of this study was to evaluate whether availability of hypertonic sodium solution during the pe...

journal_title：Physiology & behavior

authors： Macchione AF,Caeiro XE,Godino A,Amigone JL,Antunes-Rodrigues J,Vivas L

更新日期：2012-02-28 00:00:00

abstract：:The extent to which social living arrangements influenced seasonal changes in physiology and behavior was examined in adult squirrel monkeys (Saimiri sciureus). Data were collected over 20 months (encompassing two breeding seasons) from animals that were housed in three mixed-sex social configurations that varied in t...

journal_title：Physiology & behavior

authors： Schiml PA,Mendoza SP,Saltzman W,Lyons DM,Mason WA

更新日期：1996-10-01 00:00:00

abstract：:Previous research has demonstrated that rapid eye movement (REM), or paradoxical, sleep deprivation can interfere with the retention of certain types of learning tasks, particularly spatial learning. The present study investigated the effects of 6 h of REM sleep deprivation on the retention and extinction of both cued...

journal_title：Physiology & behavior

authors： Silvestri AJ

更新日期：2005-03-16 00:00:00

abstract：:The aim of the present study with rats was to show that electrical stimulation of a monosynaptic pathway, whose high plastic potency is well-known, can serve as a conditioned stimulus (CS) in a learning paradigm. Using chronic rats, stimulation of the perforant pathway, which activates the entorhinal cortex input to t...

journal_title：Physiology & behavior

authors： Reymann KG,Rüthrich H,Lindenau L,Ott T,Matthies H

更新日期：1982-12-01 00:00:00

abstract：:Female hamsters (Mesocricetus auratus) exposed to a short photoperiod for 8 weeks were ovariectomized, as were hamsters that were maintained in a long photoperiod. We then tested the effect of photoperiod on the ability of progesterone (P) to reduce aggression, as well as on the effects of estrogen (E), alone and with...

journal_title：Physiology & behavior

authors： Elliott AS,Nunez AA

更新日期：1992-06-01 00:00:00

abstract：:Following cholinergic denervation of the hippocampal formation, via medial septal lesions, sympathetic fibers, originating from the superior cervical ganglia, grow into the hippocampus. Previous studies have demonstrated a detrimental effect of these fibers on recovery of a spatial-learning task in male but not female...

journal_title：Physiology & behavior

authors： Harrell LE,Goyal M,Parsons DS,Peagler A

更新日期：1990-10-01 00:00:00

abstract：:Mixtures of compounds can often be tasted even when all of their components are too weak to be tasted separately. Such mixtures are said to be integrative. Integration was demonstrated by mixing compounds in concentrations proportional to their separate detection thresholds and then measuring the detection threshold o...

journal_title：Physiology & behavior

authors： Stevens JC

更新日期：1997-11-01 00:00:00

abstract：:We studied the effects of injecting agonists of the inhibitory neurotransmitter gamma-aminobutyric acid (GABA) muscimol (GABA-A receptor agonist) and baclofen (GABA-B receptor agonist) in the medial preoptic area (MPOA) and neighboring brain regions, the bed nucleus of the stria terminalis (BNST), and lateral preoptic...

journal_title：Physiology & behavior

authors： Arrati PG,Carmona C,Dominguez G,Beyer C,Rosenblatt JS

更新日期：2006-01-30 00:00:00

abstract：:We examined changes of epinephrine, norepinephrine, and cortisol levels in 24-h urine accompanying emotional behavior in cats such as restlessness, threat, and quiet biting attack elicited by electrical stimulation of specific sites within the hypothalamus. Although norepinephrine remained unchanged with restlessness ...

journal_title：Physiology & behavior

authors： Kojima K,Maki S,Hirata K,Higuchi S,Akazawa K,Tashiro N

更新日期：1995-03-01 00:00:00

abstract：:In vivo voltammetry has been widely employed to monitor the effects of drugs on dopamine metabolism. In the present study, we report on the use of a newly designed assembly for implantation of carbon fiber microelectrodes for voltammetric measurements in freely moving animals. The assembly consists of an electrode hol...

journal_title：Physiology & behavior

authors： Louilot A,Serrano A,D'Angio M

更新日期：1987-01-01 00:00:00

abstract：:Learning and memory seem to be affected by chronic stress. Previous reports have considered chronic stress as a precipitating factor of different neuropsychological disorders, while others reported neurobiological adaptations following stress. The present study investigated the effects of chronic stress before, after,...

journal_title：Physiology & behavior

authors： Radahmadi M,Alaei H,Sharifi MR,Hosseini N

更新日期：2015-02-01 00:00:00