Cost of digging is determined by intrinsic factors rather than by substrate quality in two subterranean rodent species.

abstract：:The influence of caloric load and nutrient composition on small intestinal satiety was investigated in six dogs with chronic esophageal fistulas. Dogs received small bowel infusion of a mixed nutrient liquid meal, a fat, carbohydrate, and a protein solution over two hours. Each infusion was given over a range of calor...

journal_title：Physiology & behavior

authors： Geoghegan JG,Cheng CA,Lawson C,Pappas TN

更新日期：1997-07-01 00:00:00

abstract：:The sham feeding preparation was used to determine whether systemic estradiol administration inhibits the intake of 0.8 M sucrose of ovariectomized rats by decreasing the potency of pregastric controls of ingestion. During real feeding, significant reductions in the sucrose intake of estradiol-treated rats appeared wi...

journal_title：Physiology & behavior

authors： Geary N,Trace D,Smith GP

更新日期：1995-01-01 00:00:00

abstract：:The present study describes changes of response enhancement of hippocampal field potentials in slices of kindled rats using different methods to induce long-lasting potentiation. Eight-week-old male Wistar rats were subjected to pentylenetetrazol (PTZ) kindling induced by intraperitoneal injection of 45 mg/kg once eve...

journal_title：Physiology & behavior

authors： Krug M,Koch M,Grecksch G,Schulzeck K

更新日期：1997-10-01 00:00:00

abstract：:Oxidative damage is one of the hallmarks of the aging process. The current study evaluated effects of two proprietary antioxidant-based ingredients, rosemary extract and spearmint extract containing carnosic acid and rosmarinic acid, respectively, on learning and memory in the SAMP8 mouse model of accelerated aging. T...

journal_title：Physiology & behavior

authors： Farr SA,Niehoff ML,Ceddia MA,Herrlinger KA,Lewis BJ,Feng S,Welleford A,Butterfield DA,Morley JE

更新日期：2016-10-15 00:00:00

abstract：:Communal nesting (CN) is a mouse model of early social enrichment during pregnancy and lactation. In this study, a rat model of CN was developed to determine if CN exerts an epigenetic effect in rats selectively bred for an infantile affective trait (high and low rates of ultrasonic distress calls). High and Low offsp...

journal_title：Physiology & behavior

authors： Martinez AR,Brunelli SA,Zimmerberg B

更新日期：2015-02-01 00:00:00

abstract：:Injection of clonidine or methyldopa in rats immediately after daily two-hour exposure to a complex environment (EC) reduced the increase in occipital cortical weight normally associated with such exposure in comparison with animals kept in isolation. Drug injection four hours after EC exposure had no effect. Drug ind...

journal_title：Physiology & behavior

authors： Pearlman C

更新日期：1983-01-01 00:00:00

abstract：:Fifty-two healthy young adults classified either as Type A (coronary prone) or Type B were randomly assigned to a vigilance task during which observing responses produced targets according to either a predictable (i.e., fixed-interval 90-sec) or a nonpredictable (i.e., random-interval 90-sec) reinforcement schedule. D...

journal_title：Physiology & behavior

authors： Zeichner A,Allen JD,Spiga R,Rudd J,Brown A

更新日期：1990-01-01 00:00:00

abstract：:Previous studies showed that when socially isolated at 22 degrees C, postnatal day 14 rats, but not younger day 7 rats, reduce their emission of ultrasonic vocalizations when exposed to an unfamiliar adult male rat, a naturalistic threat. Because ultrasound production is associated with factors such as age and body te...

journal_title：Physiology & behavior

authors： Takahashi LK

更新日期：1992-09-01 00:00:00

abstract：:Estradiol exerts an inhibitory effect on food intake via interactions with anorexigenic peptides, like cholecystokinin, that function to decrease meal size. It is currently unknown whether estradiol also interacts with orexigenic compounds implicated in the physiological control of food intake. Thus, the primary goal ...

journal_title：Physiology & behavior

authors： Messina MM,Boersma G,Overton JM,Eckel LA

更新日期：2006-07-30 00:00:00

abstract：:With the rising prevalence of obesity and related health problems increases, there is increased interest in the gastrointestinal system as a possible target for pharmacological or food-based approaches to weight management. Recent studies have shown that under normal physiological situations undigested nutrients can r...

journal_title：Physiology & behavior

authors： Maljaars PW,Peters HP,Mela DJ,Masclee AA

更新日期：2008-10-20 00:00:00

abstract：:The present study describes an experiment that was carried out to study the effects of mixing pigs once at 25 kg, preceded by transportation for 1.5 h, on the behavior and the circadian rhythmicity of salivary cortisol. The frequency of agonistic interactions was higher for mixed pigs. This was not only the case immed...

journal_title：Physiology & behavior

authors： Ekkel ED,Savenije B,Schouten WG,Wiegant VM,Tielen MJ

更新日期：1997-07-01 00:00:00

abstract：:Disruption in the gut microbiota is now recognized as an active contributor towards the development of obesity and insulin resistance. This review considers one class of dietary additives known to influence the gut microbiota that may predispose susceptible individuals to insulin resistance - the regular, long-term co...

journal_title：Physiology & behavior

authors： Nettleton JE,Reimer RA,Shearer J

更新日期：2016-10-01 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

authors： Robinson JK,Flory RK,Dunahoo CL

更新日期：1990-02-01 00:00:00

abstract：:C57BL/6J male mice ordinarily kill neonatal mouse pups even if they are rendered androgen deficient by neonatal castration. Experiment 1 showed that adrenalectomy during adult life significantly decreased the tendency of neonatally gonadectomized males to kill newborns. Experiment 2 demonstrated that testosterone expo...

journal_title：Physiology & behavior

authors： Kinsley C,Svare B

更新日期：1987-01-01 00:00:00

abstract：:The chorda tympani nerve (CT) and the glossopharyngeal nerve (GL) have been considered important nerves for the sense of taste. We studied the effect of bilateral sectioning of the CT and/or GL on the sweet taste in the mouse. Before and after surgery we analyzed the daily drinking patterns, using the two-bottle prefe...

journal_title：Physiology & behavior

authors： Tonosaki K,Uebayashi H

更新日期：1993-04-01 00:00:00

abstract：:In this study we investigated the sexually dimorphic anxiety response to a novel environment in the absence of estrogens neonatally or in adulthood. There was a sexual dimorphism in the plus-maze test after the open-field test, females being more active and less anxious. In the absence of estrogens neonatally but not ...

journal_title：Physiology & behavior

authors： Leret ML,Molina-Holgado F,González MI

更新日期：1994-02-01 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

authors： Montgomery TM,Pendleton EL,Smith JE

更新日期：2018-09-01 00:00:00

abstract：:The aim of the present study was to test the hypothesis that vesicular glutamate transporter 3 (VGluT3) deficiency is associated with cognitive impairments. Male VGluT3 knockout (KO) and wild type (WT) mice were exposed to a behavioral test battery covering paradigms based on spontaneous exploratory behavior and reinf...

journal_title：Physiology & behavior

authors： Fazekas CL,Balázsfi D,Horváth HR,Balogh Z,Aliczki M,Puhova A,Balagova L,Chmelova M,Jezova D,Haller J,Zelena D

更新日期：2019-12-01 00:00:00

abstract：:Female rats were housed in Wahmann wheels under a 12:12 light-dark (LD) photoperiod for 36 days and then were switched to LD 10:14 for 36-64 days. Running was 95-100% nocturnal. Overall amounts of running were higher in LD 12:12, but changes over the estrous cycle were similar. On the night of proestrus running increa...

journal_title：Physiology & behavior

authors： Kent S,Hurd M,Satinoff E

更新日期：1991-06-01 00:00:00

abstract：:Animals sampled from the third generation (S3) of selective breeding of N:NIH strain rats based on ultrasonic vocalization (USV) rates in infancy (High, Low, and Random lines) were tested as adults on the elevated plus maze, a well-validated test of anxiety. Results showed that the Low line spent a greater percent of ...

journal_title：Physiology & behavior

authors： Dichter GS,Brunelli SA,Hofer MA

更新日期：1996-07-01 00:00:00

abstract：:Early overnutrition disrupts leptin sensitivity and the development of hypothalamic pathways involved in the regulation of metabolism and feeding behavior. While previous studies have largely focused on the development of neuronal projections, few studies have examined the impact of early nutrition on hypothalamic syn...

journal_title：Physiology & behavior

authors： Roberts BL,Bennett CM,Carroll JM,Lindsley SR,Kievit P

更新日期：2019-07-01 00:00:00

abstract：:Artificial stimuli were used to study transient changes in responsiveness of female hamsters in natural estrus to tactile stimuli occurring during mating. Tactile stimulation just lateral to the vagina produces a transient facilitation of responses to stimulation of the contralateral side, while tactile stimulation of...

journal_title：Physiology & behavior

authors： Noble RG,Attas A,Adler NT

更新日期：1988-01-01 00:00:00

abstract：:Thyroid hormones (TH) are essential for normal development and function of mammalian central nervous system (CNS); TH dysregulation has been implicated in several cognitive and behavioral deficits related to dysfunctions of neurotransmitter systems. In the present study, we investigated the effects of adult onset hypo...

journal_title：Physiology & behavior

authors： Vasilopoulou CG,Constantinou C,Giannakopoulou D,Giompres P,Margarity M

更新日期：2016-10-01 00:00:00

abstract：:The environmental factors that arrest breeding in prairie voles during the middle of the breeding season are unknown. The role of water availability on reproductive function was examined by limiting water intake to 50% of ad lib water consumption for 10 weeks. At autopsy, testicular, epididymal and seminal vesicle mas...

journal_title：Physiology & behavior

authors： Nelson RJ,Frank D,Bennett SA,Carter CS

更新日期：1989-11-01 00:00:00

abstract：:The consumption of a large food bolus leads to stomach distension. Gastric distension potently signals the termination of a meal by stimulating gastric mechanoreceptors and activating neuroendocrine circuitry. The ability to terminate a meal is altered in disorders such as bulimia nervosa (BN), binge-eating disorder (...

journal_title：Physiology & behavior

authors： Hargrave SL,Kinzig KP

更新日期：2012-02-28 00:00:00

abstract：:Rats were chronically maintained on an ethanol liquid diet for 16 days. Three weeks after cessation of ethanol intake, animals were tested for the acquisition of shuttle box avoidance and the retention of passive avoidance behaviour. Alcohol consuming rats showed a significant impairment of acquisition in the shuttle ...

journal_title：Physiology & behavior

authors： Guaza C,Borrell J

更新日期：1985-02-01 00:00:00

abstract：:Humans will eat almost anything, from caribou livers to rutabagas, but there are some types of foods, and their associated taste qualities, that are preferred by large groups of people regardless of culture or experience. When many choices are available, humans chose foods that taste good, that is, create pleasing sen...

journal_title：Physiology & behavior

authors： Reed DR,Tanaka T,McDaniel AH

更新日期：2006-06-30 00:00:00

abstract：:The effects of wheel deprivation on running were explored. Eight male rats, well habituated to wheels, were each deprived of wheels for periods of 0, 1, 3, and 10 h during the night (Experiment 1) and 0, 1, 3, and 10 days (Experiment 2). In Experiment 1, as wheel deprivation lengthened, wheel running in the first 24 h...

journal_title：Physiology & behavior

authors： Mueller DT,Herman G,Eikelboom R

更新日期：1999-03-01 00:00:00

abstract：:Wrist motions (223-471)/5 min were measured during 17-32 days of continuous recordings made from human passengers as they traveled across zero to five time zones for business and pleasure. The travelers all exhibited daily cycles of activity and rest. The duration of daily activity, alpha, was 1.1 h less at the destin...

journal_title：Physiology & behavior

authors： Binkley S

更新日期：1994-05-01 00:00:00

abstract：:Calorie restriction (CR) has been promoted to increase longevity. Previous studies have indicated that CR can negatively affect mood and therefore the effect of CR on mood and quality of life (QOL) becomes crucial when considering the feasibility of CR in humans. We conducted a three month clinical trial on CR (reduct...

journal_title：Physiology & behavior

authors： Teng NI,Shahar S,Manaf ZA,Das SK,Taha CS,Ngah WZ

更新日期：2011-10-24 00:00:00