4,116 results match your criteria Hormones and Behavior[Journal]


Organizational effects of testosterone on learning strategy preference and muscarinic receptor binding in prepubertal rats.

Horm Behav 2019 Feb 14. Epub 2019 Feb 14.

Tulane University, Department of Psychology, New Orleans, LA 70118, United States of America; Tulane University, Program in Neuroscience, New Orleans, LA 70118, United States of America.

Prior to puberty, male rats, but not female rats, prefer a striatum-based stimulus-response learning strategy rather than a hippocampus-based place strategy on a water maze task that can be solved using either strategy. Neurochemically, learning strategy preference has been linked to the ratio of cholinergic muscarinic receptor binding in the hippocampus relative to the striatum, with lower ratios displayed by males compared to females and by stimulus-response learners compared to place learners. Sex differences in a variety of different behaviors are established by the organizational influence of testosterone on brain development. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2019.02.005DOI Listing
February 2019

Establishment of partner preference in male rats: Effect of prenatal letrozole and sexual experience.

Horm Behav 2019 Feb 19;109:56-63. Epub 2019 Feb 19.

Departamento de Farmacobiología, Centro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional, México. Electronic address:

Repeated testing for masculine sexual behavior influences female sex preference in males. Males perinatally treated with aromatase inhibitors show male preference, but also copulate with the receptive female. Such copulation modifies sex preference most likely because of its rewarding properties. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2019.02.009DOI Listing
February 2019

Chronic exposure to inorganic mercury alters stress responses in male prairie voles (Microtus ochrogaster).

Horm Behav 2019 Feb 15;109:53-55. Epub 2019 Feb 15.

Department of Pharmacology and Physiology, Oklahoma State University Center for Health Sciences, Tulsa, OK 74107, United States of America. Electronic address:

Male, but not female, prairie voles that experience chronic exposure to inorganic mercury display aberrant social behavior - avoiding unfamiliar conspecifics rather than approaching them. The mechanisms that underlie such behavioral changes are unknown, but likely involve the hypothalamus-pituitary-adrenal (HPA) axis. We tested this hypothesis by providing voles of both sexes with mercury chloride in their drinking water for ten weeks and then staging same-sex dyadic encounters after which plasma was assayed for corticosterone as an index of HPA activity. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2019.02.008DOI Listing
February 2019

No difference in cognitive performance or gender role behavior between men with and without hypospadias.

Horm Behav 2019 Feb 20;109:64-70. Epub 2019 Feb 20.

Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden; Department of Pediatric Endocrinology, Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden.

Background: Hypospadias is a common malformation of the male external genitalia that results in urethral displacement with different levels of severity. Male genital development during the fetal period is dependent on androgen function, while the etiology of hypospadias differs and can be multifactorial. The psychosocial outcome is sometimes affected, but according to several studies acceptable. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2019.02.004DOI Listing
February 2019
7 Reads

Taurine modulates the stress response in zebrafish.

Horm Behav 2019 Feb 13;109:44-52. Epub 2019 Feb 13.

Graduate Program in Pharmacology, Federal University of Santa Maria, 1000 Roraima Avenue, Santa Maria, RS 97105-900, Brazil; Graduate Program in Bio-Experimentation, University of Passo Fundo (UPF), BR 285, Passo Fundo, RS 99052-900, Brazil; Graduate Program in Environmental Sciences, University of Passo Fundo (UPF), BR 285, Passo Fundo, RS 99052-900, Brazil.

The zebrafish (Danio rerio) is used as an emergent model organism to investigate the behavioral and physiological responses to stress. The anxiolytic-like effects of taurine in zebrafish support the existence of different mechanisms of action, which can play a role in preventing stress-related disorders (i.e. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2019.02.006DOI Listing
February 2019
2 Reads

Acute stress enhances general-knowledge semantic memory.

Horm Behav 2019 Feb 13;109:38-43. Epub 2019 Feb 13.

Department of Psychology, Tufts University, 490 Boston Ave., Medford, MA 02155, United States of America.

Acute psychological stress consistently impairs episodic memory, which consists of memory for events that are associated with a specific context. However, researchers have not yet established how stress influences semantic memory, which consists of general knowledge that is devoid of context. In the present study, participants either underwent stress induction or a control task prior to taking a trivia test that was designed to measure semantic memory. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2019.02.003DOI Listing
February 2019

Effect of testosterone blockers on male aggression, song and parental care in an arctic passerine, the Lapland longspur (Calcarius lapponicus).

Horm Behav 2019 Feb 5. Epub 2019 Feb 5.

Department of Neurobiology, Physiology & Behavior, University of California, One Shields Ave., Davis, CA 95616, USA. Electronic address:

In many passerine birds, testosterone stimulates song and aggression but inhibits paternal care, but few studies have explored whether such effects can be reversed with testosterone blockers. We explored the effect of testosterone blockers on song, aggression and paternal care of Lapland longspurs (Calcarius lapponicus), an arctic passerine with a short breeding season. Twenty-one "blocker males" received implants containing an androgen receptor blocker and an aromatase inhibitor, compared to 27 control males with empty or no implants. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2019.02.001DOI Listing
February 2019
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Oxytocin receptor knockout prairie voles generated by CRISPR/Cas9 editing show reduced preference for social novelty and exaggerated repetitive behaviors.

Horm Behav 2018 Nov 8. Epub 2018 Nov 8.

Laboratory of Molecular Biology, Department of Molecular and Cell Biology, Graduate School of Agricultural Science, Tohoku University, 468-1, Aramaki Aza-Aoba, Aoba-ku, Sendai 980-0845, Miyagi, Japan. Electronic address:

Behavioral neuroendocrinology has benefited tremendously from the use of a wide range of model organisms that are ideally suited for particular questions. However, in recent years the ability to manipulate the genomes of laboratory strains of mice has led to rapid advances in our understanding of the role of specific genes, circuits and neural populations in regulating behavior. While genome manipulation in mice has been a boon for behavioral neuroscience, the intensive focus on the mouse restricts the diversity in behavioral questions that can be investigated using state-of-the-art techniques. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2018.10.011DOI Listing
November 2018
1 Read

Sex hormones and stroke: Beyond estrogens.

Horm Behav 2018 Nov 20. Epub 2018 Nov 20.

Women's Health in Neuroscience Program, Neuroscience and Experimental Therapeutics, Texas A&M College of Medicine, Bryan, TX 77807, United States of America.

Stroke risk and poor stroke outcomes in postmenopausal women have usually beeen attributed to decreased levels of estrogen. However, two lines of evidence suggest that this hormone may not be solely responsible for elevated stroke risk in this population. First, the increased risk for CVD and stroke occurs much earlier than menopause at a time when estrogen levels are not yet reduced. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2018.10.010DOI Listing
November 2018
1 Read

Access to a high resource environment protects against accelerated maturation following early life stress: A translational animal model of high, medium and low security settings.

Horm Behav 2019 Jan 29. Epub 2019 Jan 29.

School of Arts & Sciences, Health Psychology Program, Massachusetts College of Pharmacy and Health Sciences, Boston, MA 02115, United States. Electronic address:

Early life exposure to a low security setting, characterized by a scarcity of resources and limited food access, increases the risk for psychiatric illness and metabolic dysfunction. We utilized a translational rat model to mimic a low security environment and determined how this manipulation affected offspring behavior, metabolism, and puberty. Because food insecurity in humans is associated with reduced access to healthy food options the "low security" rat manipulation combined a Western diet with exposure to a limited bedding and nesting manipulation (WD-LB). Read More

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http://dx.doi.org/10.1016/j.yhbeh.2019.01.003DOI Listing
January 2019
1 Read

Differential effects of androgens, estrogens and socio-sexual context on sexual behaviors in the castrated male goat.

Horm Behav 2019 Feb 1;109:10-17. Epub 2019 Feb 1.

Rutgers University, New Brunswick, NJ, USA. Electronic address:

The behavioral and endocrine activation of sexual behaviors exhibited by male goats, especially self-enurination (SE), is poorly understood. In the first experiment, to assess the influence of socio-sexual context on SE in bucks, the effects of distance from does, the presence of estrous versus non-estrous does and the presence of another buck on SE and courtship frequencies of intact male goats (bucks; n = 12) were tested using a unique behavior test apparatus. For experiments 2 and 3, to test the relative contributions of sex steroid hormones and socio-sexual context on SE, castrated male goats (wethers; n = 20) were randomly divided into five groups and injected for seven weeks with one of the following: 25 mg testosterone propionate (T), 25 mg dihydrotestosterone propionate (DHT), 100 μg estradiol benzoate (E), 100 μg E and 25 mg DHT (E + DHT), or oil (CON). Read More

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http://dx.doi.org/10.1016/j.yhbeh.2019.01.008DOI Listing
February 2019

Effects of ovarian hormones on the emission of 50-kHz ultrasonic vocalizations during distributed clitoral stimulation in the rat.

Horm Behav 2019 Jan 29;109:1-9. Epub 2019 Jan 29.

Center for Studies in Behavioral Neurobiology, Department of Psychology, Concordia University, Montréal, QC, Canada. Electronic address:

Fifty-kHz ultrasonic vocalizations (USVs) are emitted by adult rats during appetitive phases of behavior in response to stimuli thought to be associated with a positive affective state. In particular, 50-kHz USVs with rapid frequency oscillations, known as trills and flat-trills, in which these oscillations are flanked by a monotonic portion, are together positively correlated with appetitive behaviors such as rough and tumble play, drug and natural reward, and mating. Female rats produce 50-kHz USVs during a variety of sexual contexts, yet data are still vague as female sexual behavior is seldom studied on its own. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2019.01.005DOI Listing
January 2019

Testosterone, cortisol, and status-striving personality features: A review and empirical evaluation of the Dual Hormone hypothesis.

Horm Behav 2019 Feb 1;109:25-37. Epub 2019 Feb 1.

Department of Psychology, University of New Mexico, Albuquerque, NM, USA.

Decades of research in behavioral endocrinology has implicated the gonadal hormone testosterone in the regulation of mating effort, often expressed in primates in the form of aggressive and/or status-striving behavior. Based on the idea that neuroendocrine axes influence each other, recent work among humans has proposed that links between testosterone and indices of status-striving are rendered conditional by the effects of glucocorticoids. The Dual Hormone hypothesis is one particular instance of this argument, predicting that cortisol blocks the effects of testosterone on dominance, aggression, and risk-taking in humans. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2019.01.006DOI Listing
February 2019
2 Reads

Influence of glucocorticoid and mineralocorticoid receptor stimulation on task switching.

Horm Behav 2019 Feb 1;109:18-24. Epub 2019 Feb 1.

Charité Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Psychiatry and Psychotherapy, Berlin, Germany.

The influence of stress on executive functions has been demonstrated in numerous studies and is potentially mediated by the stress-induced cortisol release. Yet, the impact of cortisol on cognitive flexibility and task switching in particular remains equivocal. In this study, we investigated the influence of pharmacological glucocorticoid receptor (GR) and mineralocorticoid receptor (MR) stimulation, two corticosteroid receptor types known to be responsible for cortisol effects on the brain. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2019.01.007DOI Listing
February 2019

Trick or treat? Evaluating contributing factors and sex-differences for developmental effects of maternal depression and its treatment.

Horm Behav 2019 Jan 23. Epub 2019 Jan 23.

Department of Psychology, Wayne State University, Detroit, MI, USA. Electronic address:

Maternal depression and treatment with selective serotonin reuptake inhibitors (SSRIs), the most common form of pharmaceutical intervention, can both have an impact on infant development. As such, it is difficult for healthcare providers to recommend a course of treatment to expectant mothers suffering from depression, or to women on antidepressant medication prior to pregnancy. This review will discuss the existing research on the developmental impacts of maternal depression and its treatment with SSRIs, with a particular focus on contributing factors that complicate our attempt to disentangle the consequences of maternal depression and its treatment such as the timing or severity of the depression. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2019.01.004DOI Listing
January 2019

Activation of androgen receptors protects intact male mice from memory impairments caused by aromatase inhibition.

Horm Behav 2019 Jan 17. Epub 2019 Jan 17.

Department of Psychology, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, United States of America. Electronic address:

Although 17β-estradiol (E) is known to regulate hippocampal function, the specific contributions of hippocampally-synthesized E remain unclear. Infusion of the aromatase inhibitor letrozole into the dorsal hippocampus (DH) of ovariectomized mice disrupts object recognition and object placement memory consolidation, suggesting that DH-synthesized E is essential for memory. However, the role of DH-synthesized E in memory among male rodents is unknown. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2019.01.002DOI Listing
January 2019
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The difference a day makes: Breeding remodels hearing, hormones and behavior in female Cope's gray treefrogs (Hyla chrysoscelis).

Horm Behav 2019 Feb 16;108:62-72. Epub 2019 Jan 16.

Department of Biology, Swarthmore College, 500 College Avenue, Swarthmore, PA 19081, USA. Electronic address:

In seasonal breeders, there are behavioral, endocrine, and neural adaptations that promote the sexual receptivity of females and tune their sensory systems to detect and discriminate among advertising males and to successfully copulate. What happens immediately after this key life history event is unclear, but this transitional moment offers a window into the mechanisms that remodel sexual phenotypes. In this study of wild female Cope's gray treefrogs (Hyla chrysoscelis), we tested the hypothesis that oviposition results in a suite of coordinated changes in the sexual phenotype. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2019.01.001DOI Listing
February 2019

Site-specific effects of aromatase inhibition on the activation of male sexual behavior in male Japanese quail (Coturnix japonica).

Horm Behav 2019 Feb 9;108:42-49. Epub 2019 Jan 9.

GIGA Neurosciences, University of Liège, Belgium. Electronic address:

Aromatization within the medial preoptic nucleus (POM) is essential for the expression of male copulatory behavior in Japanese quail. However, several nuclei within the social behavior network (SBN) also express aromatase. Whether aromatase in these loci participates in the behavioral activation is not known. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2018.12.015DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6377315PMC
February 2019
1 Read

Energy balance but not competitive environment corresponds with allostatic load during development in an Old World monkey.

Horm Behav 2019 Feb 4;108:30-41. Epub 2019 Jan 4.

Columbia University, Department of Ecology, Evolution, and Environmental Biology, United States of America; New York Consortium in Evolutionary Primatology, United States of America.

Primates develop slowly relative to their body size, a pattern posited to result from ecological risk aversion. Little is known, however, about how energy balance contributes to allostatic load in juveniles. Using data collected over 8 consecutive months, we examined variation in energy balance (as measured by urinary C-peptide) and how energy balance, life history status, and social competition related to allostatic load (as measured by deviation from baseline fecal glucocorticoid metabolites, dfGCs) in 41 wild juvenile blue monkeys from 3 social groups. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2018.12.014DOI Listing
February 2019

Sex differences in sleep and sleep loss-induced cognitive deficits: The influence of gonadal hormones.

Horm Behav 2019 Feb 15;108:50-61. Epub 2019 Jan 15.

Neuroscience Research Center, Kerman University of Medical Sciences, Kerman, Iran.

Males and females can respond differentially to the same environmental stimuli and experimental conditions. Chronic sleep loss is a frequent and growing problem in many modern societies and has a broad variety of negative outcomes for health and well-being. While much has been done to explore the deleterious effects of sleep deprivation (SD) on cognition in both human and animal studies over the last few decades, very little attention has been paid to the part played by sex differences and gonadal steroids in respect of changes in cognitive functions caused by sleep loss. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2018.12.013DOI Listing
February 2019

Nanoparticle encapsulation increases the brain penetrance and duration of action of intranasal oxytocin.

Horm Behav 2019 Feb 30;108:20-29. Epub 2018 Dec 30.

Department of Pharmaceutical Sciences, Mercer University College of Pharmacy, Mercer University Health Sciences Center, Atlanta, GA, USA. Electronic address:

The blood-brain barrier (BBB) limits the therapeutic use of large molecules as it prevents them from passively entering the brain following administration by conventional routes. It also limits the capacity of researchers to study the role of large molecules in behavior, as it often necessitates intracerebroventricular administration. Oxytocin is a large-molecule neuropeptide with pro-social behavioral effects and therapeutic promise for social-deficit disorders. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2018.12.011DOI Listing
February 2019

Implicit associations to infant cry: Genetics and early care experiences influence caregiving propensities.

Horm Behav 2019 Feb 27;108:1-9. Epub 2018 Dec 27.

Social & Affiliative Neuroscience Lab, Division of Psychology - School of Humanities and Social Sciences, Nanyang Technological University, Singapore; Department of Psychology and Cognitive Sciences, University of Trento, Trento, Italy.

Adults' sensitive appraisal of and response to infant cry play a foundational role in child development. Employing a gene × environment (G × E) approach, this study investigated the interaction of genetic polymorphisms of the serotonin transporter gene (5-HTTLPR) and oxytocin receptor genes (OXTR; rs53576, rs2254298) with early parental care experiences in influencing adults' implicit associations to infant cry. Eighty nulliparous adults (40 females, 40 males) responded to the Parental Acceptance-Rejection Questionnaire (PARQ), a measure of early care experiences, and participated in a Single Category Implicit Association Task (SC-IAT) to measure implicit associations to infant cry. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2018.12.012DOI Listing
February 2019

Individual differences in the biological basis of androphilia in mice and men.

Horm Behav 2018 Dec 26. Epub 2018 Dec 26.

Neuroscience Program, Michigan State University, 293 Farm Lane, East Lansing, MI 48824, USA; Department of Psychology, Memorial University of Newfoundland, St. John's, NL A1B 3X9, Canada. Electronic address:

For nearly 60 years since the seminal paper from W.C Young and colleagues (Phoenix et al., 1959), the principles of sexual differentiation of the brain and behavior have maintained that female-typical sexual behaviors (e. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2018.12.006DOI Listing
December 2018

A personal view on traits useful for success in science: Daniel S. Lehrman Award Lecture.

Horm Behav 2018 Dec 21. Epub 2018 Dec 21.

Department of Psychological and Brain Sciences, Center for Neuroendocrine Studies, University of Massachusetts, Amherst, MA 01003, USA. Electronic address:

As the 2018 recipient of the Daniel S. Lehrman Lifetime Achievement Award from the Society for Behavioral Neuroendocrinology, I was asked to give a short lecture in the Young Investigator Symposium of the combined Society for Behavioral Neuroendocrinology/International Congress on Neuroendocrinology meeting in Toronto. This lecture focused on one person's thoughts on what it takes to be successful in an academic science career. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2018.12.005DOI Listing
December 2018

Hormonal regulation of social ascent and temporal patterns of behavior in an African cichlid.

Horm Behav 2019 Jan 4;107:83-95. Epub 2019 Jan 4.

Department of Biology, Stanford University, Stanford, CA 94305, USA. Electronic address:

For many species, social rank determines which individuals perform certain social behaviors and when. Higher ranking or dominant (DOM) individuals maintain status through aggressive interactions and perform courtship behaviors while non-dominant (ND) individuals do not. In some species ND individuals ascend (ASC) in social rank when the opportunity arises. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2018.12.010DOI Listing
January 2019
1 Read

Maternal care modulates transgenerational effects of endocrine-disrupting chemicals on offspring pup vocalizations and adult behaviors.

Horm Behav 2019 Jan 4;107:96-109. Epub 2019 Jan 4.

Department of Psychology, The University of Texas at Austin, Austin, TX 78712, USA; Division of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA. Electronic address:

Endocrine-disrupting chemicals (EDCs) can act upon a developing organism to change its endocrine health and behavior in adulthood. Beyond actions on the exposed individuals, transgenerational effects of several EDCs have been reported. This study assessed the combinatorial impact of EDC-altered maternal care and transgenerational inheritance on F3 male and female offspring. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2018.12.009DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6366859PMC
January 2019

Prenatal thyroxine treatment promotes anxiolysis in male Swiss mice offspring.

Horm Behav 2019 Feb 30;108:10-19. Epub 2018 Dec 30.

Multicenter Graduate Program in Physiological Sciences, Department of Physiological Sciences, Institute of Biological and Health Sciences, Federal Rural University of Rio de Janeiro, Seropédica, Brazil.

The proper functioning of the maternal thyroid plays a crucial role in fetal development. Thus, the aim of our study was to verify how maternal hyperthyroidism is able to change behavioral parameters in mice offspring during adulthood. For this purpose, pregnant Swiss mice (n = 24 and ~35 g) were randomly assigned into two groups: a control and a thyroxine (T4)-treatment group. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2018.12.008DOI Listing
February 2019
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Pubertal development of estradiol-induced hypothalamic progesterone synthesis.

Horm Behav 2018 Dec 17. Epub 2018 Dec 17.

UCLA DGSOM Dept of Neurobiology, 650 Charles E Young Dr. S, Los Angeles, CA 90095, Laboratory of Neuroendocrinology of the Brain Research Institute, United States of America.

In females, a hallmark of puberty is the luteinizing hormone (LH) surge that triggers ovulation. Puberty initiates estrogen positive feedback onto hypothalamic circuits, which underlie the stimulation of gonadotropin releasing hormone (GnRH) neurons. In reproductively mature female rodents, both estradiol (E2) and progesterone (P4) signaling are necessary to stimulate the surge release of GnRH and LH. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2018.12.007DOI Listing
December 2018
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4.632 Impact Factor

Does the interaction between partnership status and average progesterone level predict women's preferences for facial masculinity?

Horm Behav 2019 Jan 20;107:80-82. Epub 2018 Dec 20.

University of Glasgow, Scotland, UK.

Many studies have attempted to identify biological factors that reliably predict individual differences in women's preferences for masculine male faces. Marcinkowska et al. (2018, Hormones & Behavior) recently reported that women's (N = 102) preferences for facial masculinity were predicted by the interaction between their relationship status (partnered versus unpartnered) and average progesterone level. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2018.12.004DOI Listing
January 2019

Copulation-induced antinociception in female rats is blocked by atosiban, an oxytocin receptor antagonist.

Horm Behav 2019 Jan 18;107:76-79. Epub 2018 Dec 18.

Department of Psychology, Rutgers University, 101 Warren St., Newark, NJ 07102, USA.

Aims: We hypothesized that copulation-induced temporary anti-nociception in female rats is mediated by the activation of central and/or peripheral oxytocin receptors. To test this hypothesis, we assessed the effects of intraperitoneal (ip), intrathecal (it), and intra-cerebroventricular (icv) administration of an oxytocin receptor antagonist (atosiban), on copulation-induced temporary anti-nociception in estrous rats.

Main Methods: The treatment groups were ovariectomized rats pre-treated subcutaneously (sc) with 10 μg of estradiol benzoate (EB) followed 24 h later by an sc injection of 5 μg EB, and 4 h later, by an sc injection of 2 mg progesterone (P4). Read More

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http://dx.doi.org/10.1016/j.yhbeh.2018.12.001DOI Listing
January 2019

Comparative role of reward in long-term peer and mate relationships in voles.

Horm Behav 2018 Dec 7. Epub 2018 Dec 7.

Department of Psychology, Smith College, Northampton, MA 01063, United States of America; Neuroscience Program, Smith College, Northampton, MA 01063, United States of America; Neuroscience and Behavior Program, University of Massachusetts, Amherst, MA 01003, United States of America. Electronic address:

This is a contribution to SI: SBN/ICN meeting. In social species, relationships may form between mates, parents and their offspring, and/or social peers. Prairie voles and meadow voles both form selective relationships for familiar same-sex peers, but differ in mating system, allowing comparison of the properties of peer and mate relationships. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2018.10.012DOI Listing
December 2018
1 Read

Winner and loser effects in lobster cockroach contests for social dominance.

Horm Behav 2019 Jan 13;107:49-60. Epub 2018 Dec 13.

Biodiversity Research Center, Academia Sinica, Taipei 115, Taiwan, ROC.

In the context of animal aggression, the winner/loser effect is a cross-taxa phenomenon. In the present study, the effect of social contest experience on winning and losing subsequent encounters was investigated in the furious male lobster cockroach, Nauphoeta cinerea. Dominant and subordinate individuals were generated as the result of an encounter between two socially naïve males (SNMs); the winner and loser were designated as 1st encounter dominants and 1st encounter subordinates, respectively. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S0018506X183033
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http://dx.doi.org/10.1016/j.yhbeh.2018.12.002DOI Listing
January 2019
8 Reads

Sexual experience confers resilience to restraint stress in female rats.

Horm Behav 2019 Jan 14;107:61-66. Epub 2018 Dec 14.

Department of Psychology, Carleton College, Northfield, MN 55057, United States of America. Electronic address:

During paced mating, sexually experienced female rats spend more time with the male, return to the male more quickly after intromission, and exhibit shorter interintromission intervals as compared to sexually naïve rats. Factors that trigger the shift in paced mating behavior are unknown. The present study used the elevated plus maze to test whether anxiety-like behavior differs as a function of sexual experience. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2018.12.003DOI Listing
January 2019

Endocrine-disrupting chemicals: Effects on neuroendocrine systems and the neurobiology of social behavior.

Horm Behav 2018 Dec 4. Epub 2018 Dec 4.

Division of Pharmacology and Toxicology, The University of Texas at Austin, Austin, TX 78712, USA.

A contribution to SBN/ICN special issue. Endocrine-disrupting chemicals (EDCs) are pervasive in the environment. They are found in plastics and plasticizers (bisphenol A (BPA) and phthalates), in industrial chemicals such as polychlorinated biphenyls (PCBs), and include some pesticides and fungicides such as vinclozolin. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2018.11.006DOI Listing
December 2018
1 Read

Effects of adolescent Bisphenol-A exposure on memory and spine density in ovariectomized female rats: Adolescence vs adulthood.

Horm Behav 2019 Jan 26;107:26-34. Epub 2018 Nov 26.

Department of Science Education, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY 11549, United States of America.

The endocrine disruptor, Bisphenol-A (BPA), alters many behavioral and neural parameters in rodents. BPA administration to gonadally intact adolescent rats increases anxiety, impairs spatial memory, and decreases dendritic spine density when measured in adulthood. Since BPA's action seems to be mediated through gonadal steroid receptors, the current experiments were done in ovariectomized (OVX) female rats to examine the effects on behavior and spine density of adolescent BPA exposure under controlled hormone conditions. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S0018506X183030
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http://dx.doi.org/10.1016/j.yhbeh.2018.11.004DOI Listing
January 2019
5 Reads

Anorexigenic effects of estradiol in the medial preoptic area occur through membrane-associated estrogen receptors and metabotropic glutamate receptors.

Horm Behav 2019 Jan 23;107:20-25. Epub 2018 Nov 23.

Behavioral Neuroscience Program, Department of Psychology, The State University of New York at Buffalo, Buffalo, New York 14260, USA.

Activation of membrane-associated estrogen receptors (mER) decreases food and water intake in female rats. Additional studies suggest these effects are mediated, at least in part, by membrane-associated estrogen receptor alpha (ERα). Nevertheless, the critical site of action and the intracellular signaling required for the ingestive effects of ERα remain unclear. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2018.11.001DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6348004PMC
January 2019
14 Reads

Antidepressant agomelatine attenuates behavioral deficits and concomitant pathology observed in streptozotocin-induced model of Alzheimer's disease in male rats.

Horm Behav 2019 Jan 22;107:11-19. Epub 2018 Nov 22.

Department of Biology, Medical University of Pleven, 1 Kliment Ohridski Str., Pleven 5800, Bulgaria. Electronic address:

Experimental findings suggest that the melatonin system has a beneficial role in models of Alzheimer's disease (ADs). The aim of the present study was to explore whether the atypical antidepressant agomelatine (Ago), which is a melatonin MT and MT agonist and 5-HT antagonist, is effective against behavioral, biochemical and histological impairments in streptozotocin (STZ)-induced model of ADs in male rats. Male Sprague Dawley rats were treated intraperitoneally (i. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2018.11.007DOI Listing
January 2019
14 Reads

Glucocorticoids and resilience.

Horm Behav 2018 Nov 24. Epub 2018 Nov 24.

Molecular and Behavioral Neuroscience Institute, University of Michigan, Ann Arbor, MI, United States of America.

All organisms endure frequent challenges to homeostasis, or stressors, that require adaptation. Depending on the individual, the context, and the magnitude of stress, this active adaptation can lead to behavioral susceptibility or resilience. The latter is an under-appreciated consequence of stress, as the damaging effects of chronic stress and chronically elevated glucocorticoids have received much more attention. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2018.11.005DOI Listing
November 2018
10 Reads

Frank Beach award winner: Neuroendocrinology of group living.

Horm Behav 2019 Jan 17;107:67-75. Epub 2018 Dec 17.

Department of Psychology, Department of Biology, Program in Neuroscience, Smith College, Northampton, MA 01063, United States of America. Electronic address:

Why do members of some species live in groups while others are solitary? Group living (sociality) has often been studied from an evolutionary perspective, but less is known about the neurobiology of affiliation outside the realms of mating and parenting. Colonial species offer a valuable opportunity to study nonsexual affiliative behavior between adult peers. Meadow voles (Microtus pennsylvanicus) display environmentally induced variation in social behavior, maintaining exclusive territories in summer months, but living in social groups in winter. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2018.11.002DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6371784PMC
January 2019
1 Read

Co-localization of mu-opioid and dopamine D1 receptors in the medial preoptic area and bed nucleus of the stria terminalis across seasonal states in male European starlings.

Horm Behav 2019 Jan 20;107:1-10. Epub 2018 Nov 20.

Department of Integrative Biology, University of Wisconsin, Madison, WI 53706, USA. Electronic address:

In seasonally breeding animals, changes in photoperiod and sex-steroid hormones may modify sexual behavior in part by altering the activity of neuromodulators, including opioids and dopamine. In rats and birds, activation of mu-opioid receptors (MOR) and dopamine D1 receptors in the medial preoptic area (mPOA) often have opposing effects on sexual behavior, yet mechanisms by which the mPOA integrates these opposing effects to modulate behavior remain unknown. Here, we used male European starlings (Sturnus vulgaris) to provide insight into the hypothesis that MOR and D1 receptors modify sexual behavior seasonally by altering activity in the same neurons in the mPOA. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2018.11.003DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6348025PMC
January 2019

Behavioral responses to emotional challenges in female rats living in a seminatural environment: The role of estrogen receptors.

Horm Behav 2018 Nov 6;106:162-177. Epub 2018 Nov 6.

Department of Psychology, University of Tromsø, Norway.

Estrogen receptors (ERs) are involved in sexual as well as non-sexual behaviors. In the present study we assessed the effects of stimuli inducing positive or negative affect on sociosexual, exploratory and fear-related behaviors of female rats housed in groups (4 females, 3 males) in a seminatural environment. Ovariectomized females were treated with oil, 17β‑estradiol benzoate (EB, 18 μg/kg), the ERα agonist propylpyrazoletriol (PPT), or the ERβ agonist diarylpropionitrile (DPN) (both 2 × 10 mg/rat). Read More

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http://dx.doi.org/10.1016/j.yhbeh.2018.10.013DOI Listing
November 2018
3 Reads

Comparative neuroendocrinology: A call for more study of reptiles!

Horm Behav 2018 Nov 9;106:189-192. Epub 2018 Nov 9.

Department of Integrative Biology, University of Texas at Austin, Austin, TX 78712, USA; Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, TX 78712, USA; Institute for Neuroscience, University of Texas at Austin, Austin, TX 78712, USA. Electronic address:

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http://dx.doi.org/10.1016/j.yhbeh.2018.10.005DOI Listing
November 2018

Oxytocin modulates mate-guarding behavior in marmoset monkeys.

Horm Behav 2018 Nov 26;106:150-161. Epub 2018 Oct 26.

Department of Psychology, University of Nebraska at Omaha, United States of America; Department of Biology, University of Nebraska at Omaha, United States of America.

In socially-monogamous species, intolerance of interactions between a pairmate and a sexual rival (i.e., mate-guarding) promotes the preservation of long-lasting partnerships. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2018.10.009DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6298842PMC
November 2018
6 Reads

Do women's preferences for masculine voices shift across the ovulatory cycle?

Horm Behav 2018 Nov 22;106:122-134. Epub 2018 Oct 22.

Department of Anthropology, Center for Brain, Behavior and Cognition, Pennsylvania State University, University Park, PA 16802, USA.

Are estrous mate preference shifts robust? This question is the subject of controversy within human evolutionary sciences. For nearly two decades, mate preference shifts across the ovulatory cycle were considered an important feature of human sexual selection, directing women's attention toward mates with indicators of "good genes" in their fertile phase, when conception is possible. However, several recent studies on masculine faces, bodies and behaviors did not find evidence supporting this account, known as the good genes ovulatory shift hypothesis. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2018.10.008DOI Listing
November 2018
7 Reads

Neural activity in the social decision-making network of the brown anole during reproductive and agonistic encounters.

Horm Behav 2018 Nov 26;106:178-188. Epub 2018 Oct 26.

Department of Integrative Biology, University of Texas at Austin, Austin, TX 78712, USA; Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, TX 78712, USA; Institute for Neuroscience, University of Texas at Austin, Austin, TX 78712, USA. Electronic address:

Animals have evolved flexible strategies that allow them to evaluate and respond to their social environment by integrating the salience of external stimuli with internal physiological cues into adaptive behavioral responses. A highly conserved social decision-making network (SDMN), consisting of interconnected social behavior and mesolimbic reward networks, has been proposed to underlie such adaptive behaviors across all vertebrates, although our understanding of this system in reptiles is very limited. Here we measure neural activation across the SDMN and associated regions in the male brown anole (Anolis sagrei), within both reproductive and agonistic contexts, by quantifying the expression density of the immediate early gene product Fos. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2018.06.013DOI Listing
November 2018
2 Reads

Differential effects of cholecystokinin (CCK-8) microinjection into the ventrolateral and dorsolateral periaqueductal gray on anxiety models in Wistar rats.

Horm Behav 2018 Nov 19;106:105-111. Epub 2018 Oct 19.

Departamento de Fisiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico. Electronic address:

Cholecystokinin (CCK) is one of the main neurohormone peptide systems in the brain, and a major anxiogenic mediator. The periaqueductal gray (PAG) is a key midbrain structure for defensive behaviors, which could include anxiety, fear, or even panic. The CCK system has wide distribution in the PAG, where the dorsolateral region (DL) participates in active defensive behavior and the ventrolateral region (VL) in passive defensive behavior. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2018.10.003DOI Listing
November 2018

Human Leukocyte Antigen similarity decreases partners' and strangers' body odor attractiveness for women not using hormonal contraception.

Horm Behav 2018 Nov 25;106:144-149. Epub 2018 Oct 25.

Department of Psychotherapy and Psychosomatic Medicine, TU Dresden, Fetscherstr. 74, 01307 Dresden, Germany. Electronic address:

The Human Leukocyte Antigen (HLA) is a gene complex that encodes important elements of the human immune system. HLA profile is communicated via olfaction and interindividual diversity is assumed to be advantageous for mate choice. Additionally, HLA diversity appears to enhance satisfaction and sexual attraction in existing romantic partnerships. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2018.10.007DOI Listing
November 2018
4 Reads

Interdependent self-construal, social evaluative threat and subjective, cardiovascular and neuroendocrine stress response in Chinese.

Horm Behav 2018 Nov 19;106:112-121. Epub 2018 Oct 19.

Faculty of Psychology, Southwest University, Chongqing, China. Electronic address:

Interdependent self-construal (ISC) is a concept positing that people define their self through social roles and relationships with others. We investigated in two independent studies whether ISC had an effect on psychological and endocrine stress responses. Study 1 collected data of 295 healthy young Chinese participants' subjective report of ISC using the self-construal scale, and daily levels of stress using the daily stress inventory. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2018.10.006DOI Listing
November 2018
1 Read

Sexually active bucks are a critical social cue that activates the gonadotrope axis and early puberty onset in does.

Horm Behav 2018 Nov 11;106:81-92. Epub 2018 Oct 11.

UMR Physiologie de la Reproduction et des Comportements, INRA, CNRS, IFCE, Université de Tours, 37380 Nouzilly, France. Electronic address:

In rodents, early exposure to adult male is well known to induce an early puberty in females (Vandenbergh effect). This phenomenon has been less studied in other mammals. In goats, despite our extensive knowledge about the "male-effect" phenomenon in adults (i. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2018.10.004DOI Listing
November 2018
8 Reads

Neuroendocrine stress response is moderated by sex and sex hormone receptor polymorphisms.

Horm Behav 2018 Nov 11;106:74-80. Epub 2018 Oct 11.

Department of Biobehavioral Health, Pennsylvania State University, PA, USA. Electronic address:

Sex hormones are significant regulators of stress reactivity, however, little is known about how genetic variation in hormone receptors contributes to this process. Here we report interactions between biological sex and repeat polymorphisms in genes encoding sex hormone receptors, and their effects on salivary cortisol reactivity in a sample of 100 participants (47 men & 53 women; 24.7 ± 3. Read More

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http://dx.doi.org/10.1016/j.yhbeh.2018.10.002DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6324727PMC
November 2018
2 Reads