Abstract:
:Two experiments investigated short-term food deprivation effects on neuroendocrine processes influenced by estrogen. These studies were prompted by prior work indicating that food deprivation increased the number of immunocytochemically identified cells containing estradiol receptors in the medial preoptic area of ovariectomized female hamsters. Presumably, this is one way that changes in metabolic fuel availability might alter the responsiveness of one or more systems to estradiol. The purpose of this study was to investigate two effects of estradiol that might be affected by food deprivation; these were 1) the positive feedback effects of estradiol on the luteinizing hormone (LH) surge, and 2) the facilitating effects of estradiol on locomotor activity. In Experiment 1, ovariectomized hamsters were administered estradiol, before or after 48 h of food deprivation. Two days after hormone treatment, blood was obtained by cardiac puncture, once in the morning (1100 h) and twice during the afternoon (1600-1800 h). These times were chosen to best characterize the magnitude of the LH surge. Food deprivation enhanced the amplitude of the LH surge in response to estradiol when this treatment preceded, but not when it followed, the administration of estradiol. However, there was variability in the dose of estradiol at which this effect of food deprivation occurred. In Experiment 2, the locomotor (running wheel) activity of two groups of gonadally intact female hamsters was quantified; one group was tested during the early (days 1 + 2; low estradiol) part of the estrous cycle, and the other group was tested during the late (days 3 + 4; high estradiol part of the estrous cycle. In both groups, testing was performed first under ad lib feeding conditions and again during 48 h of food deprivation. On average, the days 3 + 4 group was more active than the days 1 + 2 group, reflecting their differing levels of endogenous estradiol. Food deprivation significantly increased locomotor activity, independently of the stage of the estrous cycle during which it was imposed. These results are discussed in terms of the influence that altered estradiol receptor expression in the medial preoptic area might play in generating the effects we observed following short-term food deprivation.
journal_name
Physiol Behavjournal_title
Physiology & behaviorauthors
Mangels RA,Jetton AE,Powers JB,Wade GNdoi
10.1016/0031-9384(96)00133-3subject
Has Abstractpub_date
1996-09-01 00:00:00pages
837-43issue
3eissn
0031-9384issn
1873-507Xpii
0031-9384(96)00133-3journal_volume
60pub_type
杂志文章abstract::Animal shelters are an extremely stressful environment for a dog, most specifically due to social isolation and novel surroundings. The stress response of dogs housed in this environment may be alleviated through human interaction shortly after arrival. During their second day in a public animal shelter, adult stray d...
journal_title:Physiology & behavior
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.physbeh.2005.12.001
更新日期:2006-03-30 00:00:00
abstract::The present study investigated the effects of ethanol on retrieval from long-term memory by using a set of cognitive decision tasks. Male and female subjects were administered either 0.0 or 1.0 milliliter of ethanol per kilogram of body weight, and then asked to make physical, lexical, and semantic decisions about pai...
journal_title:Physiology & behavior
pub_type: 杂志文章
doi:10.1016/0031-9384(89)90103-0
更新日期:1989-06-01 00:00:00
abstract::Sodium deficit poses a life-threatening challenge to body fluid homeostasis and generates a sodium appetite - the behavioral drive to ingest sodium. Dr. Randall R. Sakai greatly contributed to our understanding of the hormonal responses to negative sodium balance and to the central processing of these signals. Reactiv...
journal_title:Physiology & behavior
pub_type: 杂志文章,评审
doi:10.1016/j.physbeh.2016.11.021
更新日期:2017-09-01 00:00:00
abstract::The effects of chronic estrogen treatment on the receptive and proceptive behaviors of the female rat were investigated using two modes of estrogen administration: estrogen implants and chronic estrogen injections. In addition, the potential mediating role of the adrenal was investigated. Animals were either ovariecto...
journal_title:Physiology & behavior
pub_type: 杂志文章
doi:10.1016/0031-9384(94)90005-1
更新日期:1994-01-01 00:00:00
abstract::Forty-two nondieting adult males were given 8 or 16 oz of lemonade, sweetened to equal intensity with either aspartame or sucrose, or the same volumes of water, or no drink. Subjects were separated into three groups receiving the drinks at different times: with a self-selection lunch, or 30, or 60 min before lunch. Fo...
journal_title:Physiology & behavior
pub_type: 杂志文章
doi:10.1016/0031-9384(90)90254-2
更新日期:1990-07-01 00:00:00
abstract::Ibotenic acid (IBO) is assumed to lesion neurons and to spare fibers of passage. The effects of such lesions in the amygdaloid complex of rats were compared to those of radio frequency lesions (RF) on a passive avoidance task. Both lesions impaired the acquisition of the passive avoidance response. Plasma corticostero...
journal_title:Physiology & behavior
pub_type: 杂志文章
doi:10.1016/0031-9384(85)90119-2
更新日期:1985-02-01 00:00:00
abstract::Classical conditioning is a quintessential learning process; however, maladaptive forms of conditioning sustain many unhealthy behaviors (e.g., addiction). Mindfulness training is theorized to de-automatize conditioned behavior by decoupling stimulus and response. This study assessed the effect of mindfulness training...
journal_title:Physiology & behavior
pub_type: 杂志文章
doi:10.1016/j.physbeh.2019.02.028
更新日期:2019-05-15 00:00:00
abstract::The reward strength of orosensory sucrose and corn oil was measured using fixed and progressive ratio operant schedules. Because the orosensory effects of the stimuli were of interest, Experiment 1 compared operant responses for sucrose in sham and real feeding rats. The results demonstrated that rats would work for s...
journal_title:Physiology & behavior
pub_type: 杂志文章
doi:10.1016/j.physbeh.2011.06.010
更新日期:2012-01-18 00:00:00
abstract::Decreased body weight and increased pancreas weight which occur in rats fed raw soybeans are thought to be due to the presence of trypsin inhibitors in the soybeans (SBTI). Since trypsin is postulated to be a negative feedback signal for cholecystokinin (CCK) secretion, SBTI may have these effects by increasing secret...
journal_title:Physiology & behavior
pub_type: 杂志文章
doi:10.1016/0031-9384(83)90071-9
更新日期:1983-10-01 00:00:00
abstract::Sea bass, a fish species characterized by its dualistic feeding pattern, was investigated to study the synchronizing effect of light and food on the demand-feeding rhythm. Nocturnal and diurnal sea bass, both in groups and individually, were exposed to restricted-feeding (RF) and light-dark (LD) cycles of different pe...
journal_title:Physiology & behavior
pub_type: 杂志文章
doi:10.1016/0031-9384(95)00116-z
更新日期:1995-10-01 00:00:00
abstract::The amphibian tetradecapeptide bombesin (BN) decreases food intake in both humans and animals. Studies have typically examined the effects of BN on scheduled meals in deprived subjects. To investigate the properties of this peptide under more naturalistic conditions, we examined the effects of BN in spontaneously feed...
journal_title:Physiology & behavior
pub_type: 杂志文章
doi:10.1016/0031-9384(95)02136-1
更新日期:1996-02-01 00:00:00
abstract::Tuco-tucos from Anillaco (Ctenomys aff. knighti), are subterranean rodents that run vigorously on laboratory wheels during the night but are active during the day in semi-natural enclosures, where they surface for foraging and burrow maintenance, under intense sunlight. Several studies have shown that light causes opp...
journal_title:Physiology & behavior
pub_type: 杂志文章
doi:10.1016/j.physbeh.2019.112645
更新日期:2019-10-15 00:00:00
abstract::Three experiments were conducted in order to investigate the role of brain androgen and estrogen receptors in sex hormone activated male reproductive behavior in Japanese quail. In Experiment 1, castrated male quail were injected with oil, testosterone propionate (TP), flutamide (FLUT), an androgen antagonist, or TP+F...
journal_title:Physiology & behavior
pub_type: 杂志文章
doi:10.1016/0031-9384(86)90308-2
更新日期:1986-01-01 00:00:00
abstract::The present experiment was designed to determine if intromissions alone could induce a reward state as evaluated by conditioned place preference (CPP). We also compared the rewarding properties of one ejaculation and a morphine injection. We evaluated if intromissions alone could induce CPP in males with one or three ...
journal_title:Physiology & behavior
pub_type: 杂志文章
doi:10.1016/j.physbeh.2009.09.012
更新日期:2009-12-07 00:00:00
abstract::Rats with medial frontal cortical lesions (MFC) and control animals with sham operations were tested on an ascending series of 8 DRL schedules of reinforcement ranging from 5 to 70 seconds. Rats with MFC lesions did not differ from the control group in performance when response rate, responses per reinforcement and ef...
journal_title:Physiology & behavior
pub_type: 杂志文章
doi:10.1016/0031-9384(87)90405-7
更新日期:1987-01-01 00:00:00
abstract::For domestic ruminants, the male is thought to have the control over mate choice. The aim of this study was to assess the potential role the female goat plays in choosing a sexual partner. Approach frequency and proximity time to various social or sexual stimuli in a Y-maze apparatus were used as partner preference as...
journal_title:Physiology & behavior
pub_type: 杂志文章
doi:10.1016/j.physbeh.2010.01.022
更新日期:2010-04-19 00:00:00
abstract::Syrian golden hamsters (Mesocricetus auratus) received bilateral lesions aimed at the ventromedial hypothalamus (VMH) or a sham lesion. In the first study, some of the animals in each surgical group were housed in standard sedentary conditions while others had free access to running wheels. The lesions produced a 30% ...
journal_title:Physiology & behavior
pub_type: 杂志文章
doi:10.1016/0031-9384(86)90324-0
更新日期:1986-01-01 00:00:00
abstract::A large body of evidence suggests that endogenous opioids are involved in the regulation of feeding. As the striatum and globus pallidus have relatively high concentrations of opioid receptors, these areas are possible sites of action for the stimulatory effects of opiates on feeding. To test these possibilities, male...
journal_title:Physiology & behavior
pub_type: 杂志文章
doi:10.1016/0031-9384(84)90153-7
更新日期:1984-09-01 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
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1016/s0031-9384(98)00169-3
更新日期:1998-11-15 00:00:00
abstract::The 24-hour sleep-wake cycle of untreated, normal rats and of capsaicin-treated rats was continuously recorded by telemetry. Recordings were made on two baseline days at 22 degrees C, two days at 29 degrees C, and two final days at 22 degrees C. In untreated animals the daily amount of waking was reduced by the elevat...
journal_title:Physiology & behavior
pub_type: 杂志文章
doi:10.1016/0031-9384(83)90148-8
更新日期:1983-03-01 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
pub_type: 杂志文章
doi:10.1016/0031-9384(96)00134-5
更新日期:1996-10-01 00:00:00
abstract::Following training with distinctively flavored solutions which differ in calories and thus in their postingestive effects, rats demonstrate flavor-postingestive consequence learning by preferentially consuming one of the flavors in two-bottle tests (both flavors presented in nutrient-identical solutions). The directio...
journal_title:Physiology & behavior
pub_type: 杂志文章
doi:10.1016/s0031-9384(97)00345-4
更新日期:1997-12-01 00:00:00
abstract::Nicotine exposure during development can alter behavior in adulthood in mice. One route of nicotine administration that can mimic some of the dynamics of human smoking is administration of the drug to pregnant and nursing mice through the drinking water. It is critical to determine if nicotine administration has an im...
journal_title:Physiology & behavior
pub_type: 杂志文章
doi:10.1016/j.physbeh.2010.08.021
更新日期:2010-12-02 00:00:00
abstract::A group (N = 8) of restrained, baroreceptor denervated rats and a sham-operated-control group (n = 8) received discriminated classical conditioning consisting of 30 reinforced trials in which a CS+ was paired with an electric shock US and 30 non-reinforced trials in which a different CS (CS-) was presented alone. The ...
journal_title:Physiology & behavior
pub_type: 杂志文章
doi:10.1016/0031-9384(84)90009-x
更新日期:1984-07-01 00:00:00
abstract::The purpose of the workshop entitled Taste and Smell in the Elderly: Behavioral and Nutritional Consequences was 1) to review the current state of knowledge in the area of taste and smell, with emphasis on age-related changes, 2) to identify existing gaps in our knowledge, and 3) to develop future research strategies....
journal_title:Physiology & behavior
pub_type:
doi:10.1016/s0031-9384(98)00261-3
更新日期:1999-04-01 00:00:00
abstract::Rats received total bilateral subdiaphragmatic vagotomy and, one month later, were fitted with chronic intravenous or intracerebroventricular cannulas. The vagotomized rats showed much reduced drinking compared with controls during intravenous infusion of angiotensin II. Their drinking to intracerebroventricularly adm...
journal_title:Physiology & behavior
pub_type: 杂志文章
doi:10.1016/0031-9384(80)90068-2
更新日期:1980-06-01 00:00:00
abstract::Taste expectations can influence taste evaluations. It is not known, however, whether the environmental cues that influence taste expectations--such as suggestible names and brand labels--can have a referred impact on the intake volume of companion foods. Adult diners who ordered a prix-fixe restaurant meal were given...
journal_title:Physiology & behavior
pub_type: 杂志文章
doi:10.1016/j.physbeh.2006.12.010
更新日期:2007-04-23 00:00:00
abstract::Obese female Zucker rats have several reproductive abnormalities, including delayed puberty, abnormal estrous cyclicity, and behavioral hyporesponsiveness to ovarian steroid hormones. To ascertain whether excessive body weight per se causes these reproductive abnormalities, obese Zucker female rats were fed ad lib or ...
journal_title:Physiology & behavior
pub_type: 杂志文章
doi:10.1016/s0031-9384(99)00006-2
更新日期:1999-07-01 00:00:00
abstract::The effect of epileptogenic lesion of amygdala on spatial working memory was examined in rats after unilateral (U, n = 9) or bilateral (B, n = 8) injection of 1 or 0.5 mu of 0.2% kainate into the amygdaloid complex. Another group of unilaterally lesioned rats (T, n = 9) received 8 days after kainate injection grafts o...
journal_title:Physiology & behavior
pub_type: 杂志文章
doi:10.1016/0031-9384(89)90124-8
更新日期:1989-02-01 00:00:00
abstract::Two experiments examined the feeding behaviour and body weight changes of rats returned to a standard chow diet after prolonged periods of cafeteria feeding. In the first, both overweight (ad lib fed) and 'normal' weight (fed a restricted ration of cafeteria foods) cafeteria rats became hypophagic compared to chow-fed...
journal_title:Physiology & behavior
pub_type: 杂志文章
doi:10.1016/0031-9384(85)90129-5
更新日期:1985-10-01 00:00:00