Abstract：
:Wistar rats were exposed to 24-h cycles of sinusoidal varying light intensity at various amplitudes (A) and mean intensity (I) levels. The cycle minimum was at least 0.1 lux. Food approaches and wheel running activity were continuously recorded. Entrainment was observed to light cycles with amplitudes as low as 2 lux. The success of entrainment increased with A and decreased with I, and loss of entrainment was accompanied by relative coordination. In a separate experiment, we measured the freerunning period (tau) in constant light at various I levels. The tau-illuminance curve was pseudolinear at low I (above 0.1 lux) and saturated at high I (above 100 lux). The intensity dependence of tau corresponded to the intensity response characteristics of light responsive cells in the rat suprachiasmatic nuclei, as published by other authors. It was hypothesized that the light responsive cells mediate the parametric effects of constant light and of sine waves of light.
journal_name
Physiol Behavjournal_title
Physiology & behaviorauthors
Ruis JF,Rietveld WJ,Buys JPdoi
10.1016/0031-9384(91)90588-fsubject
Has Abstractpub_date
1991-12-01 00:00:00pages
1233-9issue
6eissn
0031-9384issn
1873-507Xpii
0031-9384(91)90588-Fjournal_volume
50pub_type
杂志文章abstract：:The objective of the present investigation was to study the reversible cardiac arrest (RCA) to visual stimuli in the unrestrained Nile tilapia (Oreochromis niloticus) as well as the modulation of this response and its behavioral component (arousal/orientation or startle response) by external and internal factors that ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/s0031-9384(01)00633-3
更新日期：2002-02-01 00:00:00
abstract：:Polychlorinated biphenyls are environmental contaminants known to affect neurobehavioral development in many laboratory studies using different animal models. Because of their bioaccumulation and long half-life they are a serious concern for our own species. The dioxin-like PCB congener 3,4,3',4'-tetrachlorobiphenyl (...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2004.10.022
更新日期：2005-01-31 00:00:00
abstract：:Prolactin along with corticosterone is a stress responsive hormone. The present study examined the effect of predictable and unpredictable psychological stress on corticosterone and prolactin secretion. Repeated unpredictable exposure to the novelty cage produced a more substantial increase in the level of corticoster...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(86)90234-9
更新日期：1986-01-01 00:00:00
abstract：:Hydrogen sulfide (H2S) is an endogenous neuromodulator produced mainly by the enzyme cystathionine gamma-lyase (CSE) in peripheral tissues. A pronociceptive role of endogenously produced H2S has been previously reported by our group in a model of orofacial inflammatory pain. Using the established persistent orofacial ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2018.02.007
更新日期：2018-05-01 00:00:00
abstract：:Sex differences exist in the regulation of energy homeostasis in response to calorie scarcity or excess. Brain-derived neurotrophic factor (BDNF) is one of the anorexigenic neuropeptides regulating energy homeostasis. Expression of Bdnf mRNA in the ventromedial nucleus of the hypothalamus (VMH) is closely associated w...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2014.03.028
更新日期：2014-05-10 00:00:00
abstract：:Several studies have demonstrated that nicotine (NIC) exhibits antidepressant-like effects. In addition, it has been suggested that sexual hormones participate in the antidepressant actions of antidepressives. The present study was designed to analyze the effect of orchiectomy and the supplementation of testosterone p...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2010.07.011
更新日期：2010-11-02 00:00:00
abstract：:Brief interruptions of REM sleep are considered to be part of the REM episode. The maximum allowable duration of such an interruption, which is used to define the end of the REM episode, is currently a matter of debate. Making measurements on individual REM cycles, inter-REM interval analysis was carried out to determ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(91)90576-a
更新日期：1991-12-01 00:00:00
abstract：:The examples of "synergism" reported in the taste literature fit the common definition of the term but may merely reflect normal additivity in the taste system. That is, the perceived intensities of these "synergistic" mixtures exceed the sums of the perceived intensities of the unmixed taste components (addition of p...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(80)90066-9
更新日期：1980-06-01 00:00:00
abstract：:Appetite and eating are not only controlled by energy needs, but also by extrinsic factors that are not directly related to energy balance. Environmental signals that acquire motivational properties through associative learning-learned cues-can override homeostatic signals and stimulate eating in sated states, or inhi...
journal_title：Physiology & behavior
pub_type： 杂志文章,评审
doi：10.1016/j.physbeh.2011.04.059
更新日期：2011-09-26 00:00:00
abstract：:Socially dominant male sugar gliders are heavier than socially subordinate males, have higher plasma testosterone and lower cortisol concentrations, win more social encounters, scan the arena more, scent-mark more, and are more active and move more quickly, even though they spend more time in the colony nesting box. W...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(94)90398-0
更新日期：1994-06-01 00:00:00
abstract：:Effect of cold exposure on aggressive behavior, on the concentrations of testosterone and glucocorticoids, as well as on the oxygen consumption at different ambient temperatures, and calorigenic effect of noradrenaline have been studied in BALB/cLac and C57Bl/6J males. Under normal temperature conditions, there have b...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(93)90150-e
更新日期：1993-03-01 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：:In Damaraland mole-rats (Fukomys damarensis), non-breeding subordinates contribute to the care of offspring born to the breeding pair in their group by carrying and retrieving young to the nest. In social mole-rats and some cooperative breeders, dominant females show unusually high testosterone levels and it has been ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2018.03.021
更新日期：2018-09-01 00:00:00
abstract：:A technique for recording single unit activity in the active rat with microelectrodes is described. The microdrive used is small and light enough to be carried in a well that is chronically implanted on the head of the rat. The device permits standard microelectrodes to be lowered without rotation, a feature which red...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(77)90296-7
更新日期：1977-09-01 00:00:00
abstract：:Some conditioned taste aversion experiments were undertaken to determine how the gerbil responds to disaccharides, monosaccharides and polyols. We observed the following: animals taught an aversion to 0.1 M sucrose generalized the avoidance to most sugars, the exception being galactitol; animals taught to avoid 0.01 M...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(82)90176-7
更新日期：1982-06-01 00:00:00
abstract：:Adverse early life experiences can affect adaptability to chronic stressors and lead to depressive-like behaviors in animal models. We employed an early experience model in which rat pups during postnatal days 10-13 are exposed to a T-maze in which they learn the location of their mother motivated by the rewarding sti...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2017.11.004
更新日期：2018-02-01 00:00:00
abstract：:Excessive expectancy or an aversion to acupuncture makes it difficult to evaluate the efficacy of acupuncture during clinical trials. We investigated whether experimental manipulations of the perception of acupuncture could elicit different responses to identical acupuncture stimulation. Seventeen participants were as...
journal_title：Physiology & behavior
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.physbeh.2008.07.027
更新日期：2008-10-20 00:00:00
abstract：:When Norway rat litters are nursed communally, postpartum-conceived litters born asynchronously are female biased at birth. To determine if one or more mechanisms produced this sex ratio bias, we studied litters conceived at a postpartum estrus, and systematically varied the presence or absence of a litter suckling du...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(94)90207-0
更新日期：1994-08-01 00:00:00
abstract：:This exploratory investigation examined the association between maximal aerobic power (VO2max) and blood pressure (BP) and heart rate (HR) reactivity to mental challenge. Adolescent male judo athletes (n = 20) performed a 2-min mental arithmetic. Heart rate was recorded before, during, and after the arithmetic, and BP...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(94)90187-2
更新日期：1994-08-01 00:00:00
abstract：:Aging is associated with a loss of the ability to maintain homeostasis in response to physiologic and environmental disturbances. Age-related dysregulation of food intake and energy balance appears to be the result of impaired responsiveness of hypothalamic integrative circuitry to metabolic cues, which can lead to la...
journal_title：Physiology & behavior
pub_type： 杂志文章,评审
doi：10.1016/j.physbeh.2006.05.032
更新日期：2006-06-30 00:00:00
abstract：:We investigated the relationship between perceived bitterness, food disgust sensitivity, and sex. Participants completed the 8-item Food Disgust Scale and a 6-n-propylthiouracil (PROP) taster test and were categorised as PROP non-tasters, medium-tasters, or supertasters. An analysis of variance of between-subject fact...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2019.02.036
更新日期：2019-05-15 00:00:00
abstract：:Adult male Long-Evans rats (n = 9 per group) received daily exposure for 4 weeks to fluoxetine (0.75 mg FLUOX/kg body weight) or trimipramine (1.6 mg TRIMI/kg body weight). Separate tests of copulation, sexual motivation, and intermale aggressive behaviors were used to evaluate functional changes during chronic exposu...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(95)02088-8
更新日期：1996-03-01 00:00:00
abstract：:It has been shown that acquisition rates in the water maze vary across strains of mice, although the differential effects of previous experience in this spatial task have been scarcely evaluated. The aim of the present study was to evaluate the effects of training in the water maze at an early age (2 months) in two st...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/s0031-9384(99)00059-1
更新日期：1999-08-01 00:00:00
abstract：:There is mounting evidence suggesting a link between serum zinc levels and clinical depression. Not only is serum zinc negatively correlated with the severity of symptoms, but zinc levels appear to be lowest in patients who do not respond to antidepressant drug therapy. It is not known if reduced zinc levels are contr...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2008.06.017
更新日期：2008-10-20 00:00:00
abstract：:Changes were studied in the open-field behavior of young rats prematurely separated from their mothers at different ages. Premature separation from the mother on days 15 and 18 of life increased their fear or emotional behavior, as measured by the amount of defecation and locomotor activity. The changes in rats' open-...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(87)90272-1
更新日期：1987-01-01 00:00:00
abstract：:This study aimed at investigating the effects of modulators of acetylcholine-muscarinic (ACh-M) and GABAA.B-receptors in the lateral hypothalamus and ventral tegmentum on the electrical self-stimulation evoked from these regions. In each Wistar rat, a bipolar electrode and an ipsilateral insulated cannula-cum-electrod...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/s0031-9384(96)00452-0
更新日期：1997-03-01 00:00:00
abstract：:The goal of this study was to investigate possible relationships between different aspects of behavioural decline in aged (17 months) NMRI mice by a multivariate analysis. These mice presented defects in spatial processing both in place learning in a Morris-type water maze and in spontaneous alternation in a Y-maze, a...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(93)90120-5
更新日期：1993-08-01 00:00:00
abstract：:Cancer patients frequently suffer from fatigue, a complex syndrome associated with tiredness and depressed mood. Cancer-related fatigue (CRF) can be present at the time of diagnosis, escalates during treatment, and can persist for years after treatment. CRF negatively influences quality of life, limits functional inde...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2014.12.045
更新日期：2015-03-01 00:00:00
abstract：:The present study was designed to clarify the mechanism of adrenergic modulation of pancreatic glucagon secretion in rats under physiological conditions by 1) epinephrine infusion alone or together with adrenergic blockers and 2) administration of adrenergic agonists. Intravenous infusion of epinephrine alone (1 micro...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(92)90303-j
更新日期：1992-06-01 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
pub_type： 杂志文章,评审
doi：10.1016/j.physbeh.2006.05.022
更新日期：2006-08-30 00:00:00
