Testosterone control of male courtship in birds.

abstract：:Estradiol-17β (E2) synthesized in the brain plays a critical role in the activation of sexual behavior in many vertebrate species. Because E2 concentrations depend on aromatization of testosterone, changes in aromatase enzymatic activity (AA) are often utilized as a proxy to describe E2 concentrations. Utilizing two t...

journal_title：Hormones and behavior

authors： Dickens MJ,de Bournonville C,Balthazart J,Cornil CA

更新日期：2014-02-01 00:00:00

abstract：:The vertebrate hippocampus (HP) plays a critical role in the organization of memory. Estrogens alter synaptic morphology and function in the mammalian HP and may potentiate memory performance. Previous studies suggest that the songbird HP itself is a site of significant aromatase expression, intimating that local estr...

journal_title：Hormones and behavior

authors： Saldanha CJ,Popper P,Micevych PE,Schlinger BA

更新日期：1998-10-01 00:00:00

abstract：:Rodent alarm chemosignals elicit various behavioral and physiological responses in conspecifics. This study employed a bioassay method, using a modification of the forced swim test, to demonstrate that the pituitary mediates production and/or secretion of an alarm chemosignal in rats subjected to stress. This was show...

journal_title：Hormones and behavior

authors： Abel EL

更新日期：1994-06-01 00:00:00

abstract：:Fighting behavior between male copperheads (Agkistrodon contortrix) occurs during the two mating periods (late summer/fall and spring) to gain priority of access to females. Fights are characterized by prominent vertical challenge displays, swaying, and a high degree of physical contact that does not involve biting. A...

journal_title：Hormones and behavior

authors： Schuett GW,Harlow HJ,Rose JD,Van Kirk EA,Murdoch WJ

更新日期：1996-03-01 00:00:00

abstract：:To determine across-year patterns in plasma testosterone (T) and corticosterone (B) levels in free-living birds, we took blood samples in the same 2-week breeding period during 4 consecutive years from territorial male red-winged blackbirds. We used our data to test predictions of the "challenge hypothesis" of T secre...

journal_title：Hormones and behavior

authors： Beletsky LD,Orians GH,Wingfield JC

更新日期：1992-09-01 00:00:00

abstract：:The role of gonadal hormones in the production of five odors that are attractive to the opposite sex was investigated in meadow voles, Microtus pennsylvanicus. Preferences of intact male and female voles for the scents of same- versus opposite-sex conspecifics were examined. The attractiveness of opposite-sex scents f...

journal_title：Hormones and behavior

authors： Ferkin MH,Johnston RE

更新日期：1993-12-01 00:00:00

abstract：:We administered the synthetic estrogen, diethylstilbestrol (DES), or the antiestrogen, tamoxifen, to pregnant guinea pigs and observed the consequences for sexual differentiation of their female offspring. Hormones were administered during the period when treatment of fetuses with testosterone influences the developme...

journal_title：Hormones and behavior

authors： Hines M,Alsum P,Roy M,Gorski RA,Goy RW

更新日期：1987-09-01 00:00:00

abstract：:Androgens act on the CNS to affect motor function through interaction with a widespread distribution of intracellular androgen receptors (AR). This review highlights our work on androgens and process outgrowth in motoneurons, both in vitro and in vivo. The actions of androgens on motoneurons involve the generation of ...

journal_title：Hormones and behavior

authors： Fargo KN,Galbiati M,Foecking EM,Poletti A,Jones KJ

更新日期：2008-05-01 00:00:00

abstract：:Systemic administration of ovine prolactin (PRL) has been previously reported to stimulate parental feeding behavior toward 7-day-old foster squabs by nonbreeding ring doves with previous breeding experience. The first of the present experiments reexamined this claim in experienced, nonbreeding birds given test squabs...

journal_title：Hormones and behavior

authors： Buntin JD,Becker GM,Ruzycki E

更新日期：1991-09-01 00:00:00

abstract：:Coping strategies have been associated with differential stress responsivity, perhaps providing a valuable neurobiological marker for susceptibility to the emergence of depressogenic symptoms or vulnerability to other anxiety-related disorders. Rats profiled with a flexible coping phenotype, for example, exhibit incre...

journal_title：Hormones and behavior

authors： Kent M,Bardi M,Hazelgrove A,Sewell K,Kirk E,Thompson B,Trexler K,Terhune-Cotter B,Lambert K

更新日期：2017-09-01 00:00:00

abstract：:A number of studies have shown that chronic stress can negatively impact both physiology and behavior in a variety of organisms. What has yet to be extensively explored is whether these changes permanently alter an animal's functioning, or if they can be reversed. In this study, we used wild-caught house sparrows (Pas...

journal_title：Hormones and behavior

authors： Gormally BMG,Ramos S,Yin H,Romero LM

更新日期：2019-06-01 00:00:00

abstract：:In rodents, parts of the arginine-vasopressin (AVP) neuronal system are sexually dimorphic with males having more AVP-immunoreactive cells/fibers than females. This neuropeptide neuronal system is highly sensitive to steroids and has been proposed to play an important role in the processing of olfactory cues critical ...

journal_title：Hormones and behavior

authors： Pierman S,Sica M,Allieri F,Viglietti-Panzica C,Panzica GC,Bakker J

更新日期：2008-06-01 00:00:00

abstract：:Sexual behavior in female rats depends on the action of estradiol on estrogen receptors (ERs) found in particular brain regions. While hormonal regulation of female sexual behavior requires ERalpha, the possible functions of ERbeta remain to be clarified. Mating stimulation has several behavioral and physiological con...

journal_title：Hormones and behavior

authors： Gréco B,Blasberg ME,Kosinski EC,Blaustein JD

更新日期：2003-04-01 00:00:00

abstract：:We investigated changes in antiphonal duetting with phases of reproduction and circulating levels of luteinizing hormone, testosterone, and estradiol in slate-colored boubous (Laniarius funebris) breeding in aviaries. Frequency of overall male singing did not vary with reproductive phase while frequencies of female si...

journal_title：Hormones and behavior

authors： Schwabl H,Sonnenschein E

更新日期：1992-09-01 00:00:00

abstract：:Testosterone has been shown to increase the volume of steroid-sensitive brain nuclei in adulthood in several vertebrate species. In male Japanese quail the volume of the male-biased sexually dimorphic medial preoptic nucleus (POM), a key brain area for the control of male sexual behavior, is markedly increased by test...

journal_title：Hormones and behavior

authors： Charlier TD,Ball GF,Balthazart J

更新日期：2008-09-01 00:00:00

abstract：:Adrenal corticosterone secretion of newborn mice rapidly desensitizes to repeated maternal absence. The present study investigated the effects of novelty exposure, maternal care and genotype on this phenomenon. Maternal separation (MS) took place on postnatal days (pnd) 3-5. In Wistar rats, the degree of novelty in th...

journal_title：Hormones and behavior

authors： Daskalakis NP,Claessens SE,Laboyrie JJ,Enthoven L,Oitzl MS,Champagne DL,de Kloet ER

更新日期：2011-07-01 00:00:00

abstract：:Chemical communication is a critical component of social behavior as it facilitates social encounters, allows for evaluation of the social partner, defines territories and resources, and advertises information such as sex and physiological state of an animal. Odors provide a key source of information about the social ...

journal_title：Hormones and behavior

authors： Rendon NM,Soini HA,Scotti MA,Weigel ER,Novotny MV,Demas GE

更新日期：2016-05-01 00:00:00

abstract：:Women's ovulation is perceivable with different senses. Already subtle face shape differences are enough to trigger men's preference for the ovulatory female. The aim of the present study is to investigate if men's testosterone level can be linked to their preference for the ovulatory female. Thirty-nine heterosexual ...

journal_title：Hormones and behavior

authors： Bobst C,Lobmaier JS

更新日期：2014-08-01 00:00:00

abstract：:We studied the role of progesterone receptor (PR) in the display of female sexual behavior during postpartum estrus in rats. Adult female rats were treated with the PR antagonist, RU486 (1.25 and 5 mg), 3 h after parturition and sexual behavior was evaluated throughout the first postpartum day. Estradiol and progester...

journal_title：Hormones and behavior

authors： Carrillo-Martínez GE,Gómora-Arrati P,González-Arenas A,Morimoto S,Camacho-Arroyo I,González-Flores O

更新日期：2011-01-01 00:00:00

abstract：:Research was undertaken to study the role of central angiotensin in the modulation of male sexual behavior, testing the effect of angiotensin II (Ang II) injections into the medial amygdaloid nucleus (MeA). The sexual behavior of adult male Wistar rats was evaluated, 15 min after bilateral intra-amygdaloid microinject...

journal_title：Hormones and behavior

authors： Breigeiron MK,Morris M,Lucion AB,Sanvitto GL

更新日期：2002-05-01 00:00:00

abstract：:We examined associations between prenatal exposure to perfluorohexane sulfonic acid (PFHxS), perfluoroheptanoic acid (PFHpA), perfluorononanoic acid (PFNA), and perfluorodecanic acid (PFDA) - and child behaviour (SDQ-total) and hyperactivity (sub-scale) at 5-9years of age in birth cohorts from Greenland and Ukraine. P...

journal_title：Hormones and behavior

authors： Høyer BB,Bonde JP,Tøttenborg SS,Ramlau-Hansen CH,Lindh C,Pedersen HS,Toft G

更新日期：2018-05-01 00:00:00

abstract：:This confirmatory work is aimed to test that the hypothesis that the gastrin releasing peptide (GRP) receptor - the BB2 receptor - is necessary for reduction of meal size (MS) and prolongation of the intermeal interval (IMI) by the small and the large forms of GRP in the rat, GRP-10 and GRP-29, and to confirm the site...

journal_title：Hormones and behavior

authors： Washington MC,Mhalhal TR,Sayegh AI

更新日期：2016-09-01 00:00:00

abstract：:Vasectomized male Texas bobwhite quail (Colinus virginianus texanus) are used as foster fathers in a program to reintroduce the endangered masked bobwhite quail to its native habitat. Less than half of the Texas bobwhite, however, show appropriate alloparental behavior toward the chicks. They also undergo a significan...

journal_title：Hormones and behavior

authors： Vleck CM,Dobrott SJ

更新日期：1993-03-01 00:00:00

abstract：:Chemosensory stimuli and sex steroid hormones are both required for the full expression of social behaviors in many species. The terrestrial salamander, Plethodon shermani, is an emerging nonmammalian system for investigating the nature and evolution of pheromonal communication, yet little is known regarding the role ...

journal_title：Hormones and behavior

authors： Schubert SN,Houck LD,Feldhoff PW,Feldhoff RC,Woodley SK

更新日期：2006-09-01 00:00:00

abstract：:Male cotton-top tamarins, Saguinus oedipus, display hormonal changes associated with parenting prior to the birth of their infants. Here we examined the hormonal changes that occurred in experienced and inexperienced fathers during the postconception period, prior to the birth of infants. Noninvasive techniques were u...

journal_title：Hormones and behavior

authors： Ziegler TE,Snowdon CT

更新日期：2000-11-01 00:00:00

abstract：:In adult rodents, leptin has been shown to significantly alter the activity of several neuroendocrine functions, including the activity of the hypothalamic-pituitary-adrenal (HPA) axis. Leptin is generally believed to be inhibitory to HPA activity in adults. Developing rat pups have high circulating levels of leptin, ...

journal_title：Hormones and behavior

authors： Oates M,Woodside B,Walker CD

更新日期：2000-06-01 00:00:00

abstract：:In recent years, there has been a notable interest in studying prey-predator relationships to develop rodent-based models for the neurobehavioral aspects of stress and emotion. However, despite the growing use of transgenic mice and results showing important differences in the behavioral responses of rats and mice, li...

journal_title：Hormones and behavior

authors： Amaral VC,Santos Gomes K,Nunes-de-Souza RL

更新日期：2010-02-01 00:00:00

abstract：:It is known that the early environment affects the mental development of rodent and human offspring. However, it is not known specifically whether a postpartum depressive state influences the depressive state in offspring. Using learned helplessness (LH) in rats as an animal model of depression, we examined the influe...

journal_title：Hormones and behavior

authors： Kurata A,Morinobu S,Fuchikami M,Yamamoto S,Yamawaki S

更新日期：2009-06-01 00:00:00

abstract：:In many bird species, males exhibit territorial aggression outside the breeding season, when testosterone concentrations are low and may not regulate territorial behaviors. The hormonal regulation of aggression at this time of year has only been studied in passerine birds. Here, we investigated the role of testosteron...

journal_title：Hormones and behavior

authors： Mougeot F,Dawson A,Redpath SM,Leckie F

更新日期：2005-05-01 00:00:00

abstract：:Many seasonally breeding vertebrate species have an associated reproductive pattern: mating behavior, gonadal activity, and peak circulating androgen levels occur simultaneously. In these species, androgens influence the expression of male mating behavior. Other species have a dissociated reproductive pattern: mating ...

journal_title：Hormones and behavior

authors： Benner SL,Woodley SK

更新日期：2007-04-01 00:00:00