Abstract：
:Male hamsters were raised on short (SD) or long (LD) photoperiods from birth, and the expression of sexual behavior at 6, 7, 10, and 14 weeks was compared. Neither mounting, intromissions, ejaculations, nor ultrasonic vocalizations differed in the two groups until 14 weeks of age, when these behaviors were performed more often by LD males. Sperm appeared in daily penile smears at an earlier age in SD than LD males, but LD males had larger flank glands and testes beginning at 6 and 7 weeks, respectively. Female siblings of the males in this study were mated around 7 weeks of age to adult males. Almost all females on both photoperiods conceived normally, and greater than 90% of the offspring delivered survived to weaning in both groups. Together, these results show that hamsters reared on SD are behaviorally and physiologically capable of reproducing for a period of time after puberty. The possibility that social influences or environmental factors other than photoperiod act on the juvenile hamster to retard reproductive development is discussed.
journal_name
Physiol Behavjournal_title
Physiology & behaviorauthors
Cherry JAdoi
10.1016/0031-9384(87)90383-0subject
Has Abstractpub_date
1987-01-01 00:00:00pages
521-6issue
4eissn
0031-9384issn
1873-507Xpii
0031-9384(87)90383-0journal_volume
39pub_type
杂志文章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：:The effects of a hypothalamic ventromedial area lesion on energy balance were tested in exercising rats and in sedentary rats to add further information about the type of obesity developed after ventromedial lesion. Four groups of six male Sprague-Dawley rats were used. Group 1: sham-lesioned and sedentary rats, which...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(93)90324-9
更新日期：1993-12-01 00:00:00
abstract：:Individual variation in the way animals cope with stressors has been documented in a number of animal groups. In general, two distinct sets of behavioural and physiological responses to stress have been described: the proactive and the reactive coping styles. Some characteristics of stress coping style seem to be coup...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2011.02.025
更新日期：2011-06-01 00:00:00
abstract：:In order to investigate the recovery from activity-stress ulcers by ad lib-feeding and/or cessation of running, male Wistar rats were exposed to the activity-stress paradigm, and the rats that revealed hypothermia (their rectal temperature fell below 36 degrees C) were sacrificed either immediately or after several 24...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/s0031-9384(97)00394-6
更新日期：1997-12-31 00:00:00
abstract：:Noise exposure during the critical period of postnatal development in rats results in anomalous processing of acoustic stimuli in the adult auditory system. In the present study, the behavioral consequences of an acute acoustic trauma in the critical period are assessed in adult rats using the acoustic startle reflex ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2010.12.010
更新日期：2011-03-28 00:00:00
abstract：:This study examined auditory-evoked brainstem responses (ABR) in the deermouse (Peromyscus maniculatus) during torpor and arousal. The ABR of the euthermic deermouse consisted of five waves occurring in a time frame of 10 ms. During torpor, ABR wave I could be elicited at slow, but not fast stimulation rates indicatin...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(95)02019-5
更新日期：1996-01-01 00:00:00
abstract：:The present study investigated the role of the midbrain reticular formation (MRF) in the expression of opposing locomotor asymmetries elicited from the medial and lateral substantia nigra pars compacta (SNC). It was found that unilateral MRF lesions produced ipsiversive circling that was potentiated by amphetamine. La...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(85)90406-8
更新日期：1985-11-01 00:00:00
abstract：:Pigeons were exposed to fixed-time food schedules of 30, 120, and 480 sec with two reinforcer magnitudes at each. Attack behavior against a rear-projected conspecific image was assessed at each interfood/reinforcer magnitude combination. For seven of eight subjects, attack rate was related to interfood interval by an ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(90)90140-y
更新日期：1990-02-01 00:00:00
abstract：:The present study was carried out to determine possible panicogenic effects of strychnine administered in subconvulsive doses to rats. Two experiments were conducted to assess two major features of panic in animal models: panic-related flight (through the observation of wild running [WR]) and defensive fights. In the ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2003.10.003
更新日期：2004-01-01 00:00:00
abstract：:Due to previous work where we have demonstrated attenuated febrile responses post-lipopolysaccharide (LPS) in calorie restricted (CR) rodents we aimed to explore metabolic rate and behavioral thermoregulation in these CR animals post-LPS. Male Sprague-Dawley rats fed ad libitum (AL) or restricted to 50% (CR50%) of the...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2012.06.009
更新日期：2012-12-05 00:00:00
abstract：:This study investigated differences in the cortisol response of fish at different developmental stages after exposure to an acute stressor. Three experiments using 126 fish each were performed using 3 different age groups of jundiá (Rhamdia quelen): fingerlings at 60 days of age, juveniles at 180 days, and adults at 3...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2012.01.013
更新日期：2012-05-15 00:00:00
abstract：:Rats weighing about 450 g were provided with permanent catheters in the portal vein and the right auricle. This method allows blood sampling from the portal and peripheral circulation at the same moment in the nondisturbed unanesthetized rat. In the ad lib condition the portal glucose level was higher than that in the...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(77)90342-0
更新日期：1977-08-01 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：:In cattle, the in vivo effects of centrally administered corticotropin-releasing hormone (CRH) or arginine vasopressin (AVP) from the perspective of stress regulation have not been fully elucidated. We compared behavioral, adrenocorticotropic, and autonomic nervous responses to intracerebroventricularly infused bCRH o...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2007.10.014
更新日期：2008-02-27 00:00:00
abstract：:Sex hormones have been reported to dynamically modulate the expression of implicit motives, a concept that has previously been thought to be relatively stable over time. This study investigates to what extent the need for affiliation, power, and achievement, as well as the form of enactment of these needs as measured ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2013.09.016
更新日期：2014-01-17 00:00:00
abstract：:Carbohydrate intake, preference, and taste thresholds may be altered in current and former cigarette smokers, which may mediate weight gain and risk for obesity in individuals who quit smoking. Attempts to model these effects in rodents have primarily used noncontingent nicotine administration. The purpose of this res...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2015.11.002
更新日期：2016-02-01 00:00:00
abstract：:The effect of cage size on spontaneous locomotor rhythms of laboratory mice was studied under simulated light-dark (12:12) cycles. On-line image analysis of bodily displacement yielded a locomotor signal over a period of 3 days. Continuous wavelet transform was applied to the signal, and ensemble averaging of eight mi...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/s0031-9384(97)00305-3
更新日期：1997-12-01 00:00:00
abstract：:Although cooperation represents a long-standing evolutionary puzzle, field studies on social carnivores have contributed greatly to our understanding of the selective forces favoring cooperative breeding. Despite these insights, our grasp of the proximate mechanisms facilitating cooperation in carnivores remains surpr...
journal_title：Physiology & behavior
pub_type： 杂志文章,评审
doi：10.1016/j.physbeh.2017.11.006
更新日期：2018-09-01 00:00:00
abstract：:Hippocampal unit responses to conditioned stimuli were analyzed in intact rats and in rats deprived of the input from the entorhinal cortex to the hippocampus. Cells in normal rats responded more intensely to a conditioned stimulus when it was applied within 1 min from a previous one. The rats with lesions had smaller...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(75)90108-0
更新日期：1975-09-01 00:00:00
abstract：:The taste responses to the "umami substances" such as monosodium glutamate (MSG), guanosine 5'-monophosphate (GMP) and inosine 5'-monophosphate (IMP) were recorded from the canine chorda tympani nerve. A large synergism was observed between MSG and the nucleotides in most mongrel dogs (type A dog). The extent of the s...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(91)90197-v
更新日期：1991-05-01 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：:This study examined spatial memory as measured by radial arm maze (RAM) performance after exposure to two stress conditions and a normothermic-unrestrained control condition. Male Fischer 344 rats were trained on the win-shift RAM procedure for 7 days, by which time they achieved asymptotic performance. The next day, ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/s0031-9384(98)00091-2
更新日期：1998-07-01 00:00:00
abstract：:The effects of nonpharmacologically-induced deprivation of paradoxical sleep for a 24 hour period were studied in rabbits. Response characteristics commonly associated with the deprivation procedure in other species were observed, as well as features apparently peculiar to the rabbit. Like other mammals, rabbits: (1) ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(86)90352-5
更新日期：1986-01-01 00:00:00
abstract：:The contribution of somatomotor activity to daily energy expenditure was estimated in 10-month-old, weight-stable, obese (fa/fa) and lean (Fa/?) Zucker rats. Total and resting heat production were assessed by recording oxygen consumption and stabilimeter activity each minute for five consecutive days in free-feeding a...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(90)90322-u
更新日期：1990-08-01 00:00:00
abstract：:The effects of a mild, nonpainful stressor (restraint, RT) on the social behavior of male rats were explored. Twenty-four hours after single or repeated RT, experimental subjects were confronted in a neutral cage with unfamiliar and naive opponents of the same sex and strain, matched for age and body weight. Introduct...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(93)90272-h
更新日期：1993-05-01 00:00:00
abstract：:We studied the effects of the androgenic hormone, androsterone sulfate, a 17-ketosteroid, on long term potentiation in the dentate gyrus (DG) of urethane anesthesized rats. Intravenous injection of 10 mg of the hormone dissolved in Nutralipid produced a significant increase of the population spike (PS), but not of the...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/s0031-9384(00)00354-1
更新日期：2000-12-01 00:00:00
abstract：BACKGROUND:Voiding disorders in humans, particularly in children are associated with increased incidence of behavioral issues as well as past history of childhood abuse. We hypothesized that creating stress in mice, utilizing either a chronic social defeat model (SD) or restraint stress in shallow water model (RSSW) wo...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2015.02.021
更新日期：2015-10-15 00:00:00
abstract：:Alcohol dehydrogenases (ADH) are key enzymes of ethanol metabolism that mediate its oxidation to acetaldehyde. ADHs are also able to oxidize some types of neurotransmitters such as dopamine, serotonin and norepinephrine. Increased level of ADHs activity, induced by chronic alcohol consumption, is presumably associated...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2017.07.022
更新日期：2017-10-01 00:00:00
abstract：:This study aimed to investigate whether co-ingestion of carbohydrate and protein during exercise affect the post-exercise ad libitum food intake. Twelve healthy active male participants (mean±SD, age: 20±1; height: 176±6cm; weight: 63.6±5.3kg; VO2peak: 51.2±7.1ml/kg/min) completed three main experimental trials in a r...
journal_title：Physiology & behavior
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.physbeh.2017.07.030
更新日期：2017-10-01 00:00:00
abstract：:Young, specific-pathogen-free cats were fed purified diets containing different sources of fat. Food intake was depressed and cats lost weight when the diet contained either hydrogenated coconut oil (HCO) or medium-chain triglycerides (MCT). With an MCT preparation enriched in 8:0 (MCT8), cats would not eat after firs...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(85)90311-7
更新日期：1985-09-01 00:00:00
