Abstract：
:Studied were isolation induced effects in guinea pigs. Males (CM) living in two colonies (12 males, 12 females, each) were compared to males (IM) born in the colonies and kept isolated from their 2nd month of age. The findings were: At 19 months of age CM showed higher testosterone and cortisol titers, higher adrenal tyrosine hydroxylase activities and higher seminal vesicles weights than IM. Body, spleen, and adrenal weights did not differ. Thus gonadal, adrenomedullary, and adrenocortical activities appear higher in CM. Adrenal functioning indicates that isolation per se is no more stressful than group living. At their 13th month of age CM and IM did not differ in their behaviors during a 1 hr open-field exposure. This is not considered to result from similar 'emotional temperaments' but rather from an inappropriate procedure to study 'emotionality' in adult guinea pigs. At their 14th month of age CM and IM were placed into the home cage of a male experienced fighter for 15 min. The agonistic encounters between the resident and CM occurred more frequently and were more escalated than between the resident and IM. IM may be a weaker stimulus for attack possibly due to a decreased production of androgen dependent pheromones as indicated by the decreased seminal vesicles weights. Eight IM placed into the colonies at their 16th month of age lost 16.3 to 20.9% of their initial body weights. Three IM died within 8 days although they were not attacked by CM. The 5 surviving males gained low ranking social positions, showed a high degree of arousal and probably were not able to reproduce.(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
Physiol Behavjournal_title
Physiology & behaviorauthors
Sachser Ndoi
10.1016/0031-9384(86)90129-0subject
Has Abstractpub_date
1986-01-01 00:00:00pages
31-9issue
1eissn
0031-9384issn
1873-507Xpii
0031-9384(86)90129-0journal_volume
38pub_type
杂志文章abstract：:Endogenous opioid release has been linked to exercise. We investigated if opioid blockade following forced swimming, a common model of rodent exercise, influenced cerebral glucose metabolism in mice. PET scan was used to assess the uptake of Fludeoxyglucose (FDG-18), a marker of cerebral glucose metabolism in 19 regio...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2020.113199
更新日期：2021-01-01 00:00:00
abstract：:Using microdialysis, we showed recently that hypothalamic immuno-reactive insulin (IRI) levels increased after a meal of chow and decreased in response to a fat meal. In the present study, we have compared extracellular hypothalamic and extrahypothalamic basal IRI levels and investigated the effect of meals composed e...
journal_title：Physiology & behavior
pub_type： 更正并重新发布的文章,杂志文章
doi：10.1016/s0031-9384(99)00061-x
更新日期：1999-03-01 00:00:00
abstract：:Two-week-old chicks were trained in a simultaneous color discrimination learning task using food reinforcement. They had to discriminate between two discs of a different color whose right-left position was alternated at random. Results showed that chicks made more errors when the nonreinforced color was placed on the ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(89)90297-7
更新日期：1989-04-01 00:00:00
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：:Central anionic influences on dipsogenic response was studied in 54 euhydrated rats. Quantity of water consumed following third ventricular infusions of equimolar hypertonic chloride and bicarbonate solutions of sodium, potassium, calcium, and barium was compared. Control group (n = 6) was given artificial cerebrospin...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(87)90317-9
更新日期：1987-01-01 00:00:00
abstract：:Four groups of Wistar rats were exposed either to saccharin + 2,4,5-T (taste-aversion group, T-A), saccharin + oil vehicle (taste-aversion control, T-A C), water + 2,4,5-T (enhanced neophobia, E-N), or water + oil (neophobia, N). Rats in the T-A group evidenced a marked aversion to saccharin in 3 consecutive preferenc...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(77)90174-3
更新日期：1977-07-01 00:00:00
abstract：:Oxytocin treatment in rats induces long-lasting antistress and growth promoting effects. This study investigated whether prolyl-leucyl-glycinamide (PLG) (the c-terminal tripeptide of oxytocin) or tocinoic acid (the ring structure of oxytocin) could induce some of these effects in male rats. For this purpose, PLG (2 or...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2004.08.034
更新日期：2004-12-15 00:00:00
abstract：:Winter is an energetically stressful period for small mammals as increasing demands for thermoregulation are often coupled with shortages of food supply. In sub-tropical savannah, Hottentot golden moles (Ambysomus hottentottus longiceps) forage throughout the year and for long periods of each day. This may enable them...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2005.02.022
更新日期：2005-04-13 00:00:00
abstract：:Repeated delivery of fast rise-time acoustic stimuli elicit cardiac changes in humans that reflect startle, orienting, and defense responses. To test the hypothesis that fast rise-time stimuli produce these responses in the rat, we evaluated magnitude, latency, and habituation of cardiovascular responses to brief airp...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(96)00154-0
更新日期：1996-09-01 00:00:00
abstract：:Prior work indicates that rats prefer a mixture of sucrose and maltodextrin to either carbohydrate alone. The present experiment examined whether a sucrose + maltodextrin (S + M) mixture also increases total fluid intake as does saccharin + carbohydrate mixtures. In 23 h/day, one-bottle tests male rats consumed more o...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/s0031-9384(97)00478-2
更新日期：1998-02-15 00:00:00
abstract：:Individual differences in open-field activity and emotionality (number of defecations and urinations), voluntary wheel running, voluntary and forced maximal sprint running speed on a photocell-timed racetrack, swimming endurance, and maximal oxygen consumption (VO2max) were studied in 35 random bred male ICR mice. Wit...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(92)90438-8
更新日期：1992-07-01 00:00:00
abstract：:Learning and memory seem to be affected by chronic stress. Previous reports have considered chronic stress as a precipitating factor of different neuropsychological disorders, while others reported neurobiological adaptations following stress. The present study investigated the effects of chronic stress before, after,...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2014.12.004
更新日期：2015-02-01 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：:The aim of this work was to study the evolution of rat food choice in relation to their age and metabolic parameters. Eighty Wistar rats were studied from birth to 13 weeks of age. At weaning, six litters were fed on a macronutrient self-selecting diet and four on a standard diet. In self-selecting males, protein inta...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/s0031-9384(02)00676-5
更新日期：2002-05-01 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：:Cardiomyopathic hamsters (CMH) develop heart disease early in life which leads to congestive heart failure and death as these hamsters age. We have previously shown that living in constant light or other non-24-h light-dark (LD) cycles can increase longevity in these hamsters, and the current experiment examined poten...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/s0031-9384(97)00250-3
更新日期：1997-11-01 00:00:00
abstract：:The relationship among changes in thirst sensations, blood variables, and differential fluid intake in hypohydrated humans was examined. Seven subjects were hypohydrated by 0%, 3%, 5%, and 7% of their body weight on four separate trials which were systematically randomized between subjects. Hypohydration levels were a...
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(87)90212-5
更新日期：1987-01-01 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：:Electrophysiological and behavioral experiments were performed to determine whether the taste system of the aquatic salamander, axolotl, discriminates taste stimuli. Taste responses were recorded extracellularly from the glossopharyngeal nerve bundle. The behavioral responses of axolotls towards various concentrations...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(94)90269-0
更新日期：1994-07-01 00:00:00
abstract：:Olfactory preferences of two-week-old bottle-fed infants were assessed in a series of simultaneous two-choice tests. Infants of each sex displayed preferential orientation to a stimulus pad worn on their mother's breast over a clean control pad. When maternal breast odor was paired with the odor of the infants' formul...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(91)90413-i
更新日期：1991-11-01 00:00:00
abstract：:We have examined behavioral consequences of genetic deletion of the adenosine A3 receptors in mice. The open field behavior of A3 adenosine receptor knock-out (A3R KO) mice was investigated both under basal conditions and after stimulation with psychostimulants. Adolescent (21 day-old) and adult A3R KO males showed an...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2008.09.018
更新日期：2008-12-15 00:00:00
abstract：:Light-dark box and open field are conventional tests for assessment of anxiety-like behavior in the laboratory mice, based on approach-avoidance conflict. However, except the basic principles, variations in the equipment and procedures are very common. Therefore, contribution of certain methodological issues in differ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2014.05.006
更新日期：2014-06-22 00:00:00
abstract：:The effect of a single exposure to foot shock stress on runway responding for food reinforcement was assessed in animals trained and tested with the same or changed reinforcement magnitude. Foot shock (30 1-s shocks, 1.0 mA) exerted no impact on runway responding in animals trained and tested with the same level of re...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/s0031-9384(99)00129-8
更新日期：1999-11-01 00:00:00
abstract：:Plasma noradrenaline (NA), adrenaline (A) and corticosterone (CS) concentrations were determined simultaneously in permanently heart-cannulated rats before and during the performance of reinforced and nonreinforced (extinguished) operant behavior. Shortly before the experimental food-reinforced (VI 15-sec schedule) le...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(90)90079-j
更新日期：1990-04-01 00:00:00
abstract：:Crib-biting in the horse is frequently prevented in the short-term by horse-owners using physical means. Because it has been proposed that crib-biting may function to reduce stress, the effect of prevention of crib-biting and/or eating on the behaviour, heart rate, and plasma cortisol and beta-endorphin concentrations...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/s0031-9384(98)00070-5
更新日期：1998-08-01 00:00:00
abstract：:Male hooded rats were castrated and implanted with Silastic capsules (1.57 mm i.d.; 3.18 mm o.d.) having a testosterone-filled space 0, 7, 22, 60, or 90 mm long. All animals were returned to their original group cages for a three-week period to allow hormone concentrations and behavioral tendencies to stabilize. Each ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(90)90336-3
更新日期：1990-09-01 00:00:00
abstract：:The relationship between performance in an avoidance conditioning paradigm and the plasma glucose levels of Sprague-Dawley rats was examined in two experiments. In Experiment 1 we investigated whether glucose levels varied with the animal's relative success at acquiring the avoidance task. Results indicated that anima...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(92)90108-e
更新日期：1992-04-01 00:00:00
abstract：:Norway rat dams were placed in an ambient temperature of 4 degrees C, 22 degrees C, or 28 degrees C. Body temperatures were recorded over a two hour period on three days; each female was observed on Day 4 and Day 10 of lactation and three days after lactation was stopped. Body temperatures were initially higher during...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(83)90261-5
更新日期：1983-06-01 00:00:00
abstract：:The relative contribution of androgenic and estrogenic metabolites of testosterone to the activation of sexual behavior was studied in Japanese quail by using inhibitors of testosterone metabolism, antiestrogens and antiandrogens. These compounds were tested in castrated birds whose sexual behavior had been activated ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(86)90429-4
更新日期：1986-10-01 00:00:00
abstract：:Electrophysiological data indicate that hyperglycemia is associated with decreased neural taste responsiveness to 1.0 M glucose, but not to 0.01 M quinine HCl, in the rat's hindbrain. The present behavioral experiment was conducted to determine whether this suppression of neural activity is manifested in a reduced int...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(87)90081-3
更新日期：1987-01-01 00:00:00
