Abstract：
:The wavelength dependence of three different circadian responses to light was compared in Syrian hamsters: phase advances and phase delays induced by 15-min light pulses at CT18 (circadian time 18) and CT13, respectively, and changes in free-running period under different levels of constant illumination (LL) intensity. Fluorescent lamps with transmission maxima at 436, 514, and 658 nm were used for delivering blue, green, and red light, respectively. White fluorescent light was also used in the LL portion of the study. The magnitude of each circadian response was plotted as a function of light intensity expressed in photons cm-2 s-1, and intensity-response relationships for the different wavelengths were quantified by fitting the data with a 4-parameter sigmoidal function using a least-squares curve-fitting routine. For each response type, the curves for the different wavelengths were identical but displaced along the horizontal axis [i.e., the functions differed only in the intensity (sigma) required for producing a half-maximal response]. The values of sigma for green and blue light were similar, while that for red light was several times greater. These results indicate that a single class of photoreceptors with peak sensitivity in the blue-green region mediates light-induced phase advances, phase delays, and changes in the period of the hamster circadian pacemaker.
journal_name
Physiol Behavjournal_title
Physiology & behaviorauthors
Boulos Zdoi
10.1016/0031-9384(95)00015-bsubject
Has Abstractpub_date
1995-06-01 00:00:00pages
1025-33issue
6eissn
0031-9384issn
1873-507Xpii
003193849500015Bjournal_volume
57pub_type
杂志文章abstract：:This study examined the behavioral responses of near-term rat fetuses to a range of chemosensory fluids that resemble constituents of milk or are present in the context of suckling immediately after birth. Milk and dimethyl disulfide (DMDS), a constituent of pup saliva that promotes postnatal nipple attachment, were e...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(92)90411-t
更新日期：1992-10-01 00:00:00
abstract：:The ambient geomagnetic field influences a variety of biological phenomena. Electrical and biochemical parameters of the rodent pineal gland are influenced by the alteration of weak magnetic fields (MF), the magnetic receptor probably residing in the retina. However, open questions concern the role of retinal pigmenta...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(88)90350-2
更新日期：1988-01-01 00:00:00
abstract：:Entrainment of circadian rhythms (CR) to the light dark cycle has been well described under controlled, experimental conditions. However, studies in rodents have reported that rhythms in the laboratory are not always reproduced under field conditions. The aim of this study was to characterise the CR of sheep maintaine...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2018.06.001
更新日期：2018-10-01 00:00:00
abstract：:Behavioral and physiological effects of alarm pheromones emanating from stressed conspecific animals were investigated. Experimentally naive male Wistar rats were exposed to the test chambers containing alarm pheromones, which had been released by other rats receiving foot shocks in the same chamber beforehand. Along ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/s0031-9384(00)00370-x
更新日期：2001-01-01 00:00:00
abstract：:The effects of pinealectomy on locomotor behavior responses to cold, heat or pain were assessed in freely moving rats. External cold (4 degrees C) or heat (36 degrees C) stress produced increases of locomotion (including horizontal and vertical movement, and total distance traveled), increases of number of turnings (i...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(94)90120-1
更新日期：1994-03-01 00:00:00
abstract：:Studies of the peripheral olfactory system of the Caribbean spiny lobster Panulirus argus and related decapod crustaceans have helped us understand mechanisms of coding of mixtures, some of which are discussed in this review. Although the number of cells in the lobster's olfactory system is much lower than in vertebra...
journal_title：Physiology & behavior
pub_type： 杂志文章,评审
doi：10.1016/s0031-9384(00)00202-x
更新日期：2000-04-01 00:00:00
abstract：:This study investigated the hypotheses that unpredictable prenatal stress has effects on the offspring, similar to those induced by perinatal administration of glucocorticoids and increases the vulnerability to stressful situations at adulthood. Rats were exposed to random noise and light stress throughout pregnancy. ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(86)90172-1
更新日期：1986-01-01 00:00:00
abstract：:Bilateral intracranial injections of puromycin (10 micrograms/0.5 microliter vehicle) into the preoptic area (POA) of steroid-primed ovariectomized rats resulted in a significant decrease in the lordosis response when compared to saline treated controls. To determine the extent of puromycin diffusion after intracrania...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(84)90162-8
更新日期：1984-09-01 00:00:00
abstract：:Tempting environmental food cues and metabolic signals are important factors in appetite regulation. Food intake reduces liking of food cues that are congruent to the food eaten (sensory-specific satiety). With this study we aimed to assess effects of sensory-specific satiety on neural processing (perceptual and evalu...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2018.08.020
更新日期：2018-11-01 00:00:00
abstract：:Female rats were used to examine the effects of chronic nicotine administration and withdrawal on food and water consumption and body weight. Rats with chronic nicotine pellet implants consumed significantly less food and water than controls for the first five days and then gradually returned to control levels of cons...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(87)90370-2
更新日期：1987-01-01 00:00:00
abstract：:This paper describes a "stretching response" which occurs in some female laboratory rats during the course of mating. It is most obviously characterized by an indentation of the abdominal wall and tonic limb and pelvic movements, which occur in irregularly spaced pulses of variable duration. The response was not seen ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(80)90044-x
更新日期：1980-06-01 00:00:00
abstract：:Rats maintained on limited-access daily feeding schedules develop food-anticipatory activity rhythms which coexist with the photic circadian activity rhythm. These food anticipatory rhythms appear to depend upon a food-entrainable circadian oscillator which is separate and distinct from the light-entrainable circadian...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(84)90064-7
更新日期：1984-01-01 00:00:00
abstract：:The role of the olfactory sense in the expression of cocaine-induced conditioned place preference (CPP) was examined in adult male rats (n = 35) of the N/Nih strain. Consistent with the scientific literature, rats were observed to significantly (p < 0.05) increase (double) the seconds spent in their least-preferred ch...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(95)02119-1
更新日期：1996-04-01 00:00:00
abstract：:Evidence suggests that animals are selected to make accurate choices and prioritize goals within the constraints of a given social environment to maximize fitness. These decisions are mostly based on complex processes in which value is linked to reward and cues may carry variable incentive salience. However, the level...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2016.11.028
更新日期：2017-02-01 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
abstract：:We have previously demonstrated that repeated pairing of a neutral odor with copulation produces a subsequent conditioned ejaculatory preference (CEP) for females bearing that odor. The present study examines the course of CEP development. In Experiment 1, Long-Evans male rats were allowed access to almond-scented, se...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/s0031-9384(01)00485-1
更新日期：2001-07-01 00:00:00
abstract：:Male rats were punished (0.6 mA/2 sec) for entering the shock compartment of a passive avoidance chamber. Twenty four hours later they were returned to the apparatus and confined to the grid floor of the shock compartment for 5 min (forced exposure). The bradycardic response found in control rats during forced exposur...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：
更新日期：1983-11-01 00:00:00
abstract：:Our previous studies have shown that in long-term two-bottle preference tests, mice from the C57BL/6ByJ (B6) inbred strain drink more monosodium glutamate (MSG) and inosine monophosphate (IMP) than mice from the 129P3/J (129) inbred strain. The goal of this study was to examine whether this variation in consumption co...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2009.07.016
更新日期：2009-10-19 00:00:00
abstract：:The present study addressed the possible role of a conditioned taste aversion in the anorectic effect of bacterial lipopolysaccharide (LPS) in the rat. Pairing an intraperitoneal (IP) injection of LPS (100 micrograms/kg b.wt.) with the subsequent presentation of a familiar diet (FD) or of a novel-tasting saccharin die...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(93)90309-4
更新日期：1993-11-01 00:00:00
abstract：:A cataleptic animal clings in a vertical position, unmoving, for abnormally long periods by supporting some of its weight on its hindlegs, grasping with the forepaws, flexing its forelimbs, and holding the head horizontal. When the head is snugly wrapped with a bandage, the head slowly falls backward, the neck hyperex...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(86)90188-5
更新日期：1986-01-01 00:00:00
abstract：:Rats shifted from a 32% to 4% sucrose solution consume substantially less 4% sucrose than unshifted animals that experience only the 4% solution. This negative contrast effect was found to be attenuated by lesions of the lateral aspects of the amygdala (basolateral, lateral, and basomedial nuclei) and eliminated by le...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(84)90035-0
更新日期：1984-11-01 00:00:00
abstract：:Caffeine is considered a cognitive enhancer at low to moderate doses because it improves alertness, vigilance, attention, and reaction time. However, no previous investigation has assessed the effect of acute caffeine intake on e-sports-specific performance. The aim of this investigation was to determine the effect of...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2020.113031
更新日期：2020-10-01 00:00:00
abstract：:Alzheimer's disease (AD) is a neurodegenerative disorder, characterized by a progressive loss of cognitive function. Despite considerable progress, a complete description of the molecular pathology of this disease has yet to be elucidated. In this respect, the need for an animal model that develops some or all aspects...
journal_title：Physiology & behavior
pub_type： 杂志文章,评审
doi：10.1016/s0031-9384(01)00524-8
更新日期：2001-08-01 00:00:00
abstract：:Hyp mice are a model for X-linked hypophosphatemia, the most common form of vitamin D-resistant rickets. Previous reports indicate alterations in the nervous system of these mice. The present study examined rearing and step climbing behavior in Hyp mice in the staircase test. We found that male Hyp mice have large red...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(87)90195-8
更新日期：1987-01-01 00:00:00
abstract：:Sprague-Dawley rats were ovariectomized (OvX) at 3 ages, day 2 (D2), week 4 (W4) and week 7 (W7); a group of OvX W7 rats were treated daily with estrogen (OB;2 micrograms for 2 or 5 weeks from 10 weeks of age). Rats were slaughtered at 4 ages, weeks 7, 9, 12 and 15, for the chemical analysis of carcass and skin. Chemi...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(82)90161-5
更新日期：1982-06-01 00:00:00
abstract：:Insulin was chronically administered to rats to determine its effect on the daily changes in food intake and body weight. Animals received regular insulin via 14-day osmotic minipumps in doses of 0.0, 0.5, 1.0, 3.0, and 5.0 IU/day treated either with (+GLU) or without glutamic acid (-GLU). Previous studies have shown ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(91)90021-f
更新日期：1991-10-01 00:00:00
abstract：:The effects of substantia nigra (SN) (pars compacta) stimulation on the rage reaction elicited by ventromedial hypothalamic nucleus (VMH) were investigated in the cat. The studied parameters of the rage reaction were: the current and the frequency threshold for the appearance of the hissing and the hissing latency. A ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(86)90395-1
更新日期：1986-01-01 00:00:00
abstract：:Although High Intensity Interval Training (HIIT) are being associated to increase cardiovascular and metabolic adaptation, there is controversy and limited information about the effects of HIIT on hippocampal oxidative stress, pro- and anti-inflammatory cytokines balance and neurotrophic status. Thus, this study evalu...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2017.10.027
更新日期：2018-02-01 00:00:00
abstract：:Isolation rearing from weaning has been reported to enhance excitatory conditioning. The present study employed a conditioned inhibition procedure to examine whether this result was attributable to locomotor hyperactivity. Rats were raised from 21 days old in isolation or in groups of five. In Phase 1, presentation of...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/s0031-9384(98)00207-8
更新日期：1998-12-01 00:00:00
abstract：:Resting heart rate (HR) and HR responses of fetal and neonatal rats are described before and after intraoral infusion of isotonic saline or lemon solution. Stable measurements of resting HR were obtained for fetuses over the last three days of gestation (E19, E20, E21) and pups on the day of birth (P0) and four subseq...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(91)90496-b
更新日期：1991-07-01 00:00:00
