Abstract：
:Motor activity of infant rat pups was measured continuously between days 3 and 18 of postnatal age. Mother-reared rats on a 12:12 LD cycle exhibited significant rhythmic activity in the circadian range as early as day 5 of postnatal age. Some of the pups reared in isolation from maternal and sibling contact and kept on 12:12 LD cycles, feeding cycles, or combinations of feeding, temperature, and LD cycles also showed rhythmic activity but it was less persistent and of a lower amplitude than the rhythms of the mother-reared group. In the isolated rat pups nocturnal partitioning of activity was strengthened in the presence of both a light-dark cycle and a feeding cycle but only when the feeding resembled more natural nursing rhythms. In animals kept on constant light and a feeding cycle, activity occurred slightly more often during the 12-hr interval of decreased food intake. The addition of a temperature cycle--cooler nocturnal temperature--decreased the proportions of nocturnal motor activity. These results indicate that feeding and light-dark cycles may contribute to the synchronization of activity rhythms during the early postnatal period.
journal_name
Physiol Behavjournal_title
Physiology & behaviorauthors
Anderson VN,Smith GKdoi
10.1016/0031-9384(87)90006-0subject
Has Abstractpub_date
1987-01-01 00:00:00pages
169-81issue
2eissn
0031-9384issn
1873-507Xpii
0031-9384(87)90006-0journal_volume
39pub_type
杂志文章abstract：:Human locomotion, as a behavioral system, is well suited for investigating the interplay of learning with innate biological mechanisms. The present work assembled, from previous findings, a test battery of operant conditioning to modify strong ongoing electromyographic (EMG) activity of the left tibialis anterior (TA)...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(86)90130-7
更新日期：1986-01-01 00:00:00
abstract：:Changes of plasma, hypothalamic and pituitary immunoreactive beta-endorphin (IR-beta-end), methionine-enkephalin (IR-Met-enk) and ACTH (IR-ACTH) were studied under various conditions of feeding and watering in rats. When rats were fed from 17:00 to 09:00 hr and water was given ad lib, plasma IR-beta-end and IR-ACTH ha...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(86)90294-5
更新日期：1986-01-01 00:00:00
abstract：:Prior research has noted a relationship between an individual's height in adolescence and their personality development later in life. This study examined whether height in adolescence--net of possible confounding variables such as age and biological maturity--predicted polydrug use in adolescence and young adulthood....
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2011.09.013
更新日期：2012-01-18 00:00:00
abstract：:We describe and test a programmable feeding system based on a contact eatometer, previously developed in our laboratory, consisting of a swinging grid beneath a hopper that is moved by the rat each time it wants to eat. This has not been connected to a solenoid that can block the movement of the grid to prevent access...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(95)02225-2
更新日期：1996-06-01 00:00:00
abstract：:Twenty-four-day old weanling male and female rats were either lesioned in the septal area, gonadectomized, lesioned and gonadectomized, or untreated. Tests for reactivity to electric shock were conducted at 26 and at 40 days of age. Neither males nor females showed any effect of the lesions are measured by flinch and ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(77)90046-4
更新日期：1977-11-01 00:00:00
abstract：:Immunoglobulin A (IgA) is the dominant immunoglobulin isotype on all mucosal surfaces where it acts as a first line of defense against microbial invasion. Recent investigations suggest that secretory IgA (sIgA) concentrations vary over the day due to a range of variables including dietary factors, daily mood, and exer...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(95)02161-2
更新日期：1996-07-01 00:00:00
abstract：:One very synthetic way to represent a night's sleep is by way of a hypnogram: a graphical representation of the sleep stages as a function of time. The hypnogram is generally quantified by a series of variables that measure the durations and latencies of the various sleep stages including wake. These variables, howeve...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(93)90289-r
更新日期：1993-11-01 00:00:00
abstract：:The development of the first standardized "scratch 'n sniff" olfactory test is described. Over 1600 subjects participated in five experiments. In Experiment 1, 50 microencapsulated odorants were rated as to their intensity, pleasantness, irritation, coolness, and familiarity, and two procedures for releasing them were...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(84)90269-5
更新日期：1984-03-01 00:00:00
abstract：:In the present work the existence of sex differences (Experiment 1) on the acquisition and extinction of a continuously reinforced response in a short and narrow runway (100 x 9 x 10 cm) were investigated. In addition to the investigation of the basic sex differences in Experiment 1, the effect of postpuberal gonadect...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(91)90230-l
更新日期：1991-01-01 00:00:00
abstract：:Body temperature (Tb) was monitored telemetrically in adult deer mice kept in an environmental chamber at low ambient temperature (Ta = 15 degrees C). Mice were challenged with various doses of 2-deoxy-D-glucose (2DG, a glycolysis inhibitor) or mercaptoacetate (MA, a fatty acid oxidation inhibitor) or a combination of...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/s0031-9384(96)00495-7
更新日期：1997-04-01 00:00:00
abstract：:Appetite for most protein appears to be unlearned. Protein-depleted rats, in the first half hour of a test, chose a significantly larger proportion of soybean, gluten, zein, fibrin, yeast torula and ovalbumin than protein replete controls, but not of casein or lactalbumin. There had been no opportunity to learn such d...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(89)90341-7
更新日期：1989-10-01 00:00:00
abstract：:Previously, a hormone-simulated pregnancy (HSP), and the subsequent 'postpartum' withdrawal in estradiol has been shown to precipitate depressive-like behaviours in the forced swim test in female rats. In this study, we used the HSP and 'postpartum' withdrawal to investigate the impact on sucrose consumption, a model ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2009.02.020
更新日期：2009-05-25 00:00:00
abstract：AIMS:Ghrelin is one of the most potent orexigens known to date. While the prevailing view is that ghrelin participates in the homeostatic control of feeding, the question arose as to whether consummatory responses evoked by this compound could be related to search for reward. We therefore attempted to delineate the inv...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2010.05.017
更新日期：2010-09-01 00:00:00
abstract：OBJECTIVES:To examine the mechanism of 5-lipoxygenase (5-LO) in the learning and memory dysfunction in rats subjected to chronic unpredictable mild stress (CUMS). METHODS:Eighty rats were divided into eight groups: the 0.5% sodium carboxymethyl cellulose solution (NaCMC)-treated group, empty vector (LV-Mock)-treated g...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2016.09.010
更新日期：2016-12-01 00:00:00
abstract：:Neonatal capsaicin treatment (50 mg/kg SC in two-day-old rats) increased thermal pain thresholds in both sexes when measured at different ages, decreased the responsiveness of adult females to specific noxious stimulation, and differentially decreased the magnitude of vaginocervical stimulation (VS)-produced analgesia...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(91)90412-h
更新日期：1991-11-01 00:00:00
abstract：:Nootropic, antioxidant, and neuroprotective properties have been shown in a standardized ethanol extract of Ptychopetalum olacoides (POEE), a medicinal plant traditionally used by the Amazonian elderly population. It has been revealed that POEE mechanisms of action include anticholinesterase effects, and involve beta-...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2008.04.022
更新日期：2008-09-03 00:00:00
abstract：:The present research explored the effects of a high and low carbohydrate diet on ratings of perceived exertion (RPE) during a 10 minute bicycle ergometer test at high physical work capacity (70% of maximum aerobic capacity). Twelve female student volunteers participated and were randomly assigned the order of diet tre...
journal_title：Physiology & behavior
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/0031-9384(85)90140-4
更新日期：1985-10-01 00:00:00
abstract：:The effect of amylin injected IP on food intake in rats of different age (7-9 weeks, 3 months, 15-18 months) was investigated. The possible site of amylin action was investigated using vagotomized rats. Lastly, the influence of food composition on amylin's effect was investigated. In 12-h food-deprived old rats, food ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(94)90076-0
更新日期：1994-05-01 00:00:00
abstract：:Intracranial self-stimulation (ICSS) evoked from the ventral tegmental area-substantia nigra (VTA-SN) and lateral hypothalamus-medial forebrain bundle (LH-MFB) was assessed following microinjections of mu (Tyr-D-Ala2-N-Me-Phe4-Gly5ol: DAGO), delta-(D-Ala2, D-Met5)-enkephalin: DADME) or kappa (Dynorphin-B or Rimorphin)...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(94)90036-1
更新日期：1994-04-01 00:00:00
abstract：:The present study examined the effects of caffeine on memory for supraspan word lists. Twelve groups of male and female college students classified as high or low impulsive received either 0, 2, or 4 mg/kg of caffeine. Female subjects were tested only during the menstrual phase of their cycle and were not taking oral ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(87)90126-0
更新日期：1987-01-01 00:00:00
abstract：:Changes in phasic events in the elderly are reviewed. Such phasic events may in part be determined by the macrostructure of sleep (sleep stages). Therefore, a brief description of sleep architecture and EEG morphology in the aged person is given. Second, there is a marked variability among individuals in the number of...
journal_title：Physiology & behavior
pub_type： 杂志文章,评审
doi：10.1016/0031-9384(93)90095-w
更新日期：1993-10-01 00:00:00
abstract：:There is accumulating data suggesting a neuroprotective activity of cholesterol, especially in stroke and Alzheimer's disease (AD). In the present study, a protective activity of this lipid in simulated neonatal anoxia was investigated. Rats were subjected to high cholesterol by feeding their dams with a diet enriched...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2004.06.009
更新日期：2004-09-30 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：:To partly or completely satisfy the increasing demand for insulin, pregnant rats were infused SC with human insulin (2.4 or 4.8 IU/day) from day 14 to day 20 of gestation. Cyclic control rats underwent the same procedure of 6 days of insulin-treatment. During the treatment all groups of rats were hypoglycaemic, but fo...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(95)00080-3
更新日期：1995-09-01 00:00:00
abstract：:Athletes' competitive level has an effect on several psychophysiological parameters during the execution of sports-related tasks. This study analyzed the acute effect of a potentiation activity (PAP), composed by 5 loaded box jumps, on specific psychological, physiological and performance-related parameters in 22 trai...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2019.02.018
更新日期：2019-05-15 00:00:00
abstract：:Persistent autonomic disturbances following stressful events suggest that the rhythmical nature of homeostatic functioning may be disrupted by these experiences. We assessed the effects of two different stressors on circadian and ultradian rhythms of Long-Evans rats by using nonlinear multi-oscillator cosinor analysis...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(95)02012-8
更新日期：1996-03-01 00:00:00
abstract：:Environmental conditions promote weight gain in children and adults, with early nutritional states and the availability of energy condensed/high-fat palatable diets appearing to facilitate the development of obesity. Little is known about the extent to which prenatal and postnatal dietary manipulations alter the respo...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2010.07.018
更新日期：2010-11-02 00:00:00
abstract：:While a rich literature has documented that the efficiency of learning and memory varies across circadian time, a close survey of that literature reveals extensive heterogeneity in the time of day (TOD) when peak cognitive performance occurs. Moreover, most previous experiments in rodents have not focused on the quest...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2018.06.035
更新日期：2018-10-01 00:00:00
abstract：:The palatability of food has been shown to influence the cephalic phase reflexes. To determine if food palatability affects the magnitude of cephalic phase insulin release (CPIR) in humans, normal-weight women were asked to list foods that they found palatable and unpalatable. Subjects then stayed overnight in the hos...
journal_title：Physiology & behavior
pub_type： 临床试验,杂志文章
doi：10.1016/s0031-9384(96)80033-3
更新日期：1996-08-01 00:00:00
abstract：:The development of the nervous system is a dynamic process where epigenetic factors play a fundamental role. Both ground-based and space research indicate that exposure to an altered gravitational environment affects rodent neurobehavioral profile and stage of development as well as duration of exposure appear to be c...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2004.08.011
更新日期：2004-12-15 00:00:00
