Latest News

Beach Award Deadline: Sept 15 | WC Young Award Dealine: Oct 1

The Frank Beach Award submission deadline is September 15. The deadline for the WC Young Award is October 1. See the Awards menu for more info.
SBN Says Farewell to Dr. James Goodson (1965 - 2014)

James (Jim) Goodson, winner of the 2004 Frank A. Beach Award and a leader in the study of the neuroendocrinology of sociality, died of cancer August 14, 2014 at the age of 48.

Welcome from the President

SBN President Cheryl Sisk.

Welcome to the website of the Society for Behavioral Neuroendocrinology (SBN). Since 1996, the SBN has been promoting intellectual exchanges between scientists who have interests in the interactions of the nervous system and the endocrine system on behavior and in the influences of behavior and the environment on neuroendocrine systems. We are an inclusive society with a very diverse membership. Our members are interested in quite an array of behaviors – reproductive behavior, parental behaviors, social behaviors, eating and drinking, responses to stressors, learning and memory, aggression and more, as well as mental health. We are interested in a wide range of species, from simple organisms, like c. elegans to humans and everything in between. We are interested in interactions at the molecular, cellular, and organismic/behavioral level of investigation. We work in laboratories, as well as in the field. Many of our members study natural behaviors, which in turn shed light on behavioral disorders, which often have strong neuroendocrine components. This rich mixture of ideas and approaches can be seen in the Society’s journal, Hormones and Behavior , and can be enjoyed at our vibrant, annual meetings.

Upcoming Meetings

Become a Member of the SBN

The Society for Behavioral Neuroendocrinology offers four levels of eligibility for prospective members: Regular, Emeritus, Student, or Associate Memberships.

To see which membership class you qualify for, please review the membership eligibility requirements.

For additional information on SBN and the rules of membership, please see the SBN Bylaws.

join now

Elected Officers

PRESIDENT (2013-2015) Cheryl Sisk

PRESIDENT-ELECT (2013-2015) Elizabeth Adkins-Regan

PAST PRESIDENT (2013-2015) Jeffrey Blaustein

SECRETARY (2013-2015) Zuoxin Wang

TREASURER (2013-2016) Nancy Forger

view more

Hormones and Behavior

Friday, September 19, 2014
Publication date: Available online 16 September 2014
Source:Hormones and Behavior

Author(s): Cédric Girard-Buttoz , Michael Heistermann , Erdiansyah Rahmi , Muhammad Agil , Panji Ahmad Fauzan , Antje Engelhardt

Mate-guarding is an important determinant of male reproductive success in a number of species. However, it is known to potentially incur costs. The aim of the present study was to assess the effect of mate-guarding on male physiological stress and aggression in long-tailed macaques, a species in which males mate-guard to a lesser extent than predicted by the Priority of Access model (PoA).The study was carried out during two mating periods on three groups of wild long-tailed macaques in Indonesia by combining behavioral observations with non-invasive measurements of fecal glucocorticoid (fGC) levels. Mate-guarding was associated with a general rise in male stress hormone levels but, from a certain threshold of mate-guarding onwards, increased vigilance time was associated with a decrease in stress hormone output. Mate-guarding also increased male-male aggression rate and male vigilance time. Overall, alpha males were more physiologically stressed than other males independently of mating competition. Increased glucocorticoid levels during mate-guarding are most likely adaptive since it may help males to mobilize extra-energy required for mate-guarding and ultimately maintain a balanced energetic status. However, repeated exposure to high levels of stress over an extended period is potentially deleterious to the immune system and thus may carry costs. This potential physiological cost together with the cost of increased aggression mate-guarding male face may limit the male’s ability to mate-guard females, explaining the deviance from the PoA model observed in long-tailed macaques. Comparing our results to previous findings we discuss how ecological factors, reproductive seasonality and rank achievement may modulate the extent to which costs of mate-guarding limit male monopolization abilities.

Friday, September 19, 2014
Publication date: Available online 16 September 2014
Source:Hormones and Behavior

Author(s): S. Retana-Márquez , R.M. Vigueras-Villaseñor , L. Juárez Rojas , A. Aragón Martínez , G. Reyes Torres

The aim of this study was to evaluate whether continuous sexual behavior could attenuate the effects of chronic stress on spermatogenesis, sexual glands, plasma testosterone and corticosterone in sexually experienced male rats. Rats were exposed to stress by immersion in cold water (ICW) daily for 20 or 50 consecutive days. Plasma testosterone and corticosterone, masculine sexual behavior, as well as the number of offspring, the epithelial area of seminiferous, prostatic and seminal glands were assessed. In stressed males, body and testicular weights decreased, male sexual behavior was disrupted, and adrenal weights increased. In males stressed for 50days, prostate and seminal glands had lower weights compared with controls. Prostate and seminal epithelial area also decreased in these males. Seminiferous tubules in testes from rats stressed for 20 or 50days showed several degenerative signs, such as vacuoles in the basal epithelium, with picnotic indicia; moderate to severe exfoliation of degenerative germinal cells in the tubule lumen was also observed. In males stressed for 50days a significant decrease in seminiferous epithelial area was observed from stages I-VIII, regardless of copulation. The litters from females that copulated with males stressed for 50days decreased significantly. Chronic stress caused increase in plasma levels of corticosterone, which were higher in males stressed for 20days than in males stressed for 50days. Testosterone decreased in stressed males and it was lower in males stressed for 50days. In stressed males allowed to copulate, body and testicular weights were similar to controls. Adrenal, seminal glands, and prostate weights, as well as epithelial areas of males stressed for 50days allowed to copulate were also similar to controls. Corticosterone was lower than in males stressed for 50days, but still higher than in controls. Testosterone in males stressed for 50days and allowed to copulate was higher than in stressed males not allowed to copulate and control males without copulation, but still lower than in control copulating males. These results show that chronic stress causes germ cell loss in testes and a decrease in prostate and seminal epithelium, possibly as a result of testosterone decrease, affecting fertility. Continuous copulation can attenuate the effects of stress on testosterone levels and on the epithelial area in male sexual glands, but not on the seminiferous epithelium after 50days of stress.

Friday, September 19, 2014
Publication date: Available online 16 September 2014
Source:Hormones and Behavior

Author(s): Iris Kastenberger , Christoph Schwarzer

The putative estrogen receptor GPER1 (the former orphan receptor GPR30) is discussed to be involved in emotional and cognitive functions and stress control. We recently described the induction of anxiety-like effects by the GPER1 agonist G-1 upon systemic injection into mice. To contribute to a better understanding of the role of GPER1 in anxiety and stress, we investigated germ-line GPER1 deficient mice. Our experiments revealed marked differences between the sexes. A mild but consistent phenotype of increased exploratory drive was observed in the home cage, the elevated plus maze and the light–dark choice test in male GPER1 KO mice. In contrast, female GPER1-KO mice displayed a less pronounced phenotype in these tests. Estrous-stage dependent mild anxiolytic-like effects were observed solely in the open field test. Notably, we observed a strong shift in acute stress coping behavior in the tail suspension test and basal corticosterone levels in different phases of the estrous cycle in female GPER1-KO mice. Our data, in line with previous reports, suggest that GPER1 is involved in anxiety and stress control. Surprisingly, its effects appear to be stronger in male than female mice.

learn more