Social correlates of androgen levels and dispersal age in juvenile male geladas
Horm Behav. 2022 Sep 22;146:105264. doi: 10.1016/j.yhbeh.2022.105264. Online ahead of print.ABSTRACTAndrogens offer a window into the timing of important male life history events such as maturation. However, when males are the dispersing sex, piecing together normative androgen profiles across development is challenging because dispersing males are difficult to track. Here, we examined the conditions that may be associated with male androgen status (via fecal androgen metabolites, fAMs) and age at dispersal in wild male geladas (Theropithecus gelada). Gelada male life histories are highly variable - dispersal may occur bef...
Source: Hormones and Behavior - September 26, 2022 Category: Endocrinology Authors: Sharmi Sen Sofia C Carrera Michael Heistermann Caitlin Barale Potter Alice Baniel Patricia M DeLacey Lauren Petrullo Amy Lu Jacinta C Beehner Source Type: research

Neuroendocrine correlates of juvenile amphibian behaviors across a latitudinal cline
Horm Behav. 2022 Sep 22;146:105263. doi: 10.1016/j.yhbeh.2022.105263. Online ahead of print.ABSTRACTWe assessed the macrogeographic and neuroendocrine correlates of behavioral variation exhibited by juveniles, an important life stage for dispersal, across the expansive range of the wood frog. By rearing animals from eggs in a common garden then using a novel environment test, we uniquely demonstrated differential expression of juvenile behaviors among 16 populations spanning 8° latitude. On the individual level, cluster analysis indicated three major behavior profiles and principal component analysis resolved four unique ...
Source: Hormones and Behavior - September 26, 2022 Category: Endocrinology Authors: Emily H Le Sage Margaret K Unkefer Sarah I Duncan Jennifer A Cundiff Leslie Rissler Erica J Crespi Source Type: research

Narcissism moderates the association between basal testosterone and generosity in men
Horm Behav. 2022 Sep 22;146:105265. doi: 10.1016/j.yhbeh.2022.105265. Online ahead of print.ABSTRACTResearch has linked hormones to behavioral outcomes in intricate ways, often moderated by psychological dispositions. The associations between testosterone and antisocial or prosocial outcomes also depend on dispositions relevant to status and dominance. In two studies (N1 = 68, N2 = 83), we investigated whether endogenous testosterone, measured in saliva, and narcissism, a psychological variable highly relevant to status motivation, interactively predicted men's preferences regarding resource allocation. Narcissism moderate...
Source: Hormones and Behavior - September 26, 2022 Category: Endocrinology Authors: Anna Z Czarna Magdalena Ziemia ńska Piotr Pawlicki Justin M Carr é Constantine Sedikides Source Type: research

Social correlates of androgen levels and dispersal age in juvenile male geladas
Horm Behav. 2022 Sep 22;146:105264. doi: 10.1016/j.yhbeh.2022.105264. Online ahead of print.ABSTRACTAndrogens offer a window into the timing of important male life history events such as maturation. However, when males are the dispersing sex, piecing together normative androgen profiles across development is challenging because dispersing males are difficult to track. Here, we examined the conditions that may be associated with male androgen status (via fecal androgen metabolites, fAMs) and age at dispersal in wild male geladas (Theropithecus gelada). Gelada male life histories are highly variable - dispersal may occur bef...
Source: Hormones and Behavior - September 26, 2022 Category: Endocrinology Authors: Sharmi Sen Sofia C Carrera Michael Heistermann Caitlin Barale Potter Alice Baniel Patricia M DeLacey Lauren Petrullo Amy Lu Jacinta C Beehner Source Type: research

Neuroendocrine correlates of juvenile amphibian behaviors across a latitudinal cline
Horm Behav. 2022 Sep 22;146:105263. doi: 10.1016/j.yhbeh.2022.105263. Online ahead of print.ABSTRACTWe assessed the macrogeographic and neuroendocrine correlates of behavioral variation exhibited by juveniles, an important life stage for dispersal, across the expansive range of the wood frog. By rearing animals from eggs in a common garden then using a novel environment test, we uniquely demonstrated differential expression of juvenile behaviors among 16 populations spanning 8° latitude. On the individual level, cluster analysis indicated three major behavior profiles and principal component analysis resolved four unique ...
Source: Hormones and Behavior - September 26, 2022 Category: Endocrinology Authors: Emily H Le Sage Margaret K Unkefer Sarah I Duncan Jennifer A Cundiff Leslie Rissler Erica J Crespi Source Type: research

Narcissism moderates the association between basal testosterone and generosity in men
Horm Behav. 2022 Sep 22;146:105265. doi: 10.1016/j.yhbeh.2022.105265. Online ahead of print.ABSTRACTResearch has linked hormones to behavioral outcomes in intricate ways, often moderated by psychological dispositions. The associations between testosterone and antisocial or prosocial outcomes also depend on dispositions relevant to status and dominance. In two studies (N1 = 68, N2 = 83), we investigated whether endogenous testosterone, measured in saliva, and narcissism, a psychological variable highly relevant to status motivation, interactively predicted men's preferences regarding resource allocation. Narcissism moderate...
Source: Hormones and Behavior - September 26, 2022 Category: Endocrinology Authors: Anna Z Czarna Magdalena Ziemia ńska Piotr Pawlicki Justin M Carr é Constantine Sedikides Source Type: research

Social correlates of androgen levels and dispersal age in juvenile male geladas
Horm Behav. 2022 Sep 22;146:105264. doi: 10.1016/j.yhbeh.2022.105264. Online ahead of print.ABSTRACTAndrogens offer a window into the timing of important male life history events such as maturation. However, when males are the dispersing sex, piecing together normative androgen profiles across development is challenging because dispersing males are difficult to track. Here, we examined the conditions that may be associated with male androgen status (via fecal androgen metabolites, fAMs) and age at dispersal in wild male geladas (Theropithecus gelada). Gelada male life histories are highly variable - dispersal may occur bef...
Source: Hormones and Behavior - September 26, 2022 Category: Endocrinology Authors: Sharmi Sen Sofia C Carrera Michael Heistermann Caitlin Barale Potter Alice Baniel Patricia M DeLacey Lauren Petrullo Amy Lu Jacinta C Beehner Source Type: research

Neuroendocrine correlates of juvenile amphibian behaviors across a latitudinal cline
Horm Behav. 2022 Sep 22;146:105263. doi: 10.1016/j.yhbeh.2022.105263. Online ahead of print.ABSTRACTWe assessed the macrogeographic and neuroendocrine correlates of behavioral variation exhibited by juveniles, an important life stage for dispersal, across the expansive range of the wood frog. By rearing animals from eggs in a common garden then using a novel environment test, we uniquely demonstrated differential expression of juvenile behaviors among 16 populations spanning 8° latitude. On the individual level, cluster analysis indicated three major behavior profiles and principal component analysis resolved four unique ...
Source: Hormones and Behavior - September 26, 2022 Category: Endocrinology Authors: Emily H Le Sage Margaret K Unkefer Sarah I Duncan Jennifer A Cundiff Leslie Rissler Erica J Crespi Source Type: research

Narcissism moderates the association between basal testosterone and generosity in men
Horm Behav. 2022 Sep 22;146:105265. doi: 10.1016/j.yhbeh.2022.105265. Online ahead of print.ABSTRACTResearch has linked hormones to behavioral outcomes in intricate ways, often moderated by psychological dispositions. The associations between testosterone and antisocial or prosocial outcomes also depend on dispositions relevant to status and dominance. In two studies (N1 = 68, N2 = 83), we investigated whether endogenous testosterone, measured in saliva, and narcissism, a psychological variable highly relevant to status motivation, interactively predicted men's preferences regarding resource allocation. Narcissism moderate...
Source: Hormones and Behavior - September 26, 2022 Category: Endocrinology Authors: Anna Z Czarna Magdalena Ziemia ńska Piotr Pawlicki Justin M Carr é Constantine Sedikides Source Type: research

Social correlates of androgen levels and dispersal age in juvenile male geladas
Horm Behav. 2022 Sep 22;146:105264. doi: 10.1016/j.yhbeh.2022.105264. Online ahead of print.ABSTRACTAndrogens offer a window into the timing of important male life history events such as maturation. However, when males are the dispersing sex, piecing together normative androgen profiles across development is challenging because dispersing males are difficult to track. Here, we examined the conditions that may be associated with male androgen status (via fecal androgen metabolites, fAMs) and age at dispersal in wild male geladas (Theropithecus gelada). Gelada male life histories are highly variable - dispersal may occur bef...
Source: Hormones and Behavior - September 26, 2022 Category: Endocrinology Authors: Sharmi Sen Sofia C Carrera Michael Heistermann Caitlin Barale Potter Alice Baniel Patricia M DeLacey Lauren Petrullo Amy Lu Jacinta C Beehner Source Type: research

Neuroendocrine correlates of juvenile amphibian behaviors across a latitudinal cline
Horm Behav. 2022 Sep 22;146:105263. doi: 10.1016/j.yhbeh.2022.105263. Online ahead of print.ABSTRACTWe assessed the macrogeographic and neuroendocrine correlates of behavioral variation exhibited by juveniles, an important life stage for dispersal, across the expansive range of the wood frog. By rearing animals from eggs in a common garden then using a novel environment test, we uniquely demonstrated differential expression of juvenile behaviors among 16 populations spanning 8° latitude. On the individual level, cluster analysis indicated three major behavior profiles and principal component analysis resolved four unique ...
Source: Hormones and Behavior - September 26, 2022 Category: Endocrinology Authors: Emily H Le Sage Margaret K Unkefer Sarah I Duncan Jennifer A Cundiff Leslie Rissler Erica J Crespi Source Type: research

Narcissism moderates the association between basal testosterone and generosity in men
Horm Behav. 2022 Sep 22;146:105265. doi: 10.1016/j.yhbeh.2022.105265. Online ahead of print.ABSTRACTResearch has linked hormones to behavioral outcomes in intricate ways, often moderated by psychological dispositions. The associations between testosterone and antisocial or prosocial outcomes also depend on dispositions relevant to status and dominance. In two studies (N1 = 68, N2 = 83), we investigated whether endogenous testosterone, measured in saliva, and narcissism, a psychological variable highly relevant to status motivation, interactively predicted men's preferences regarding resource allocation. Narcissism moderate...
Source: Hormones and Behavior - September 26, 2022 Category: Endocrinology Authors: Anna Z Czarna Magdalena Ziemia ńska Piotr Pawlicki Justin M Carr é Constantine Sedikides Source Type: research

Estratetraenol increases preference for large sexual reward but not impulsivity among heterosexual males
Horm Behav. 2022 Sep 21;146:105266. doi: 10.1016/j.yhbeh.2022.105266. Online ahead of print.ABSTRACTThere is increasing evidence suggesting that estratetraenol, a human chemosignal deemed a putative sex pheromone, affects social cognition and sexual behavior. The present study investigates the effects of estratetraenol on preference for sexual rewards in heterosexual males. Seventy-six male participants received either estratetraenol or a control carrier in a double-blind, placebo-controlled, within-participant design. Participants underwent a sexual delay discounting task, in which they were asked to make a choice between...
Source: Hormones and Behavior - September 24, 2022 Category: Endocrinology Authors: Yin Wu Ran Wei Jianxin Ou Bo Shen Yuting Ye Source Type: research

Estratetraenol increases preference for large sexual reward but not impulsivity among heterosexual males
Horm Behav. 2022 Sep 21;146:105266. doi: 10.1016/j.yhbeh.2022.105266. Online ahead of print.ABSTRACTThere is increasing evidence suggesting that estratetraenol, a human chemosignal deemed a putative sex pheromone, affects social cognition and sexual behavior. The present study investigates the effects of estratetraenol on preference for sexual rewards in heterosexual males. Seventy-six male participants received either estratetraenol or a control carrier in a double-blind, placebo-controlled, within-participant design. Participants underwent a sexual delay discounting task, in which they were asked to make a choice between...
Source: Hormones and Behavior - September 24, 2022 Category: Endocrinology Authors: Yin Wu Ran Wei Jianxin Ou Bo Shen Yuting Ye Source Type: research

Effects of methylmercury and food stress on migratory activity in song sparrows, Melospiza melodia
Horm Behav. 2022 Sep 18;146:105261. doi: 10.1016/j.yhbeh.2022.105261. Online ahead of print.ABSTRACTAvian migration is a challenging life stage susceptible to the adverse effects of stressors, including contaminants like methylmercury (MeHg). Although birds often experience stressors and contaminants concurrently in the wild, no study to date has investigated how simultaneous exposure to MeHg and food stress affects migratory behavior. Our objectives were to determine if MeHg or food stress exposure during summer, alone or combined, has carry-over effects on autumn migratory activity, and if hormone levels (corticosterone,...
Source: Hormones and Behavior - September 20, 2022 Category: Endocrinology Authors: Claire L J Bottini Rebecca E Whiley Brian A Branfireun Scott A MacDougall-Shackleton Source Type: research