Abstract：
:While there exists increasing evidence of a relationship between testosterone (T) and risk-taking (RT), many issues remain unsolved. This paper tries to address two main-questions: (i) does T influence aggressive risk-taking (ART) and/or non-aggressive risk-taking (NART) behavior and (ii) is this relationship stable throughout age and pubertal development and how is the relationship affected by affiliations with peers that are highly involved in RT, referred to as differential association (DA)? For a sample of 301 third-grade adolescent boys (mean age 14.4 years), we assessed the relationship between serum levels of T and estradiol (E2), DA and ART/NART. Significant effects of SHBG (Beta=-0.15; p<0.029) and free testosterone (FT) (Beta=0.23; p<0.003) on NART were shown. No significant effects were found with respect to ART. Further analyses showed that the FT-NART and the FT-ART relations differed as to age but not as to pubertal development (PD) and that the relationship between FT and RT is mediated by DA as such that individuals with higher levels of FT have friends that are more involved in RT and their influence contributes to increased levels of RT. Our results indicate that hormone-related interests and predispositions may influence the development of affiliations with risk-taking peers, a factor which is crucial in understanding adolescent RT.
journal_name
Horm Behavjournal_title
Hormones and behaviorauthors
Vermeersch H,T'Sjoen G,Kaufman JM,Vincke Jdoi
10.1016/j.yhbeh.2007.11.021subject
Has Abstractpub_date
2008-03-01 00:00:00pages
463-71issue
3eissn
0018-506Xissn
1095-6867pii
S0018-506X(07)00289-9journal_volume
53pub_type
杂志文章abstract：:As research neurobiologists, we pursue specific questions, and the answers rendered are also correspondingly specific. Our goal, however, is to understand an entire system or the whole organism. To that end, it is not only useful, but sometimes also necessary, that we periodically reappraise a body of specific data in...
journal_title：Hormones and behavior
pub_type： 杂志文章,评审
doi：10.1016/j.yhbeh.2007.08.007
更新日期：2008-01-01 00:00:00
abstract：:In this study we tested the hypothesis that in a passerine bird (great tit, Parus major) individuals differing for coping strategies differ in the magnitude of the adrenocortical response to social stress as well. Furthermore, we aimed at characterizing daily rhythms in corticosteroid release before and after social s...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/s0018-506x(03)00065-5
更新日期：2003-05-01 00:00:00
abstract：:In many species, females are more sexually attractive to males near ovulation. Some evidence suggests a similar pattern in humans, but methodological limitations prohibit firm conclusions at present, and information on physiological mechanisms underlying any such pattern is lacking. In 202 normally-cycling women, we e...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2012.11.007
更新日期：2013-01-01 00:00:00
abstract：:Negative mood and stress are associated with cardiovascular and metabolic disease. There are likely many physiological mechanisms underlying the poor health outcomes. The relationship of psychological states (negative mood, life stress, and stress-responsive hormones) and adiponectin, an adipokine that promotes insuli...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2010.05.006
更新日期：2010-11-01 00:00:00
abstract：:Like many teleosts, male bluegill sunfish (Lepomis macrochirus) provide sole parental care. To understand some of the proximate costs of parental care, we measured body condition and plasma levels of testosterone (T), 11-ketotestosterone (11KT) and cortisol in nesting bluegill males during pre-spawning, spawning and p...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2005.12.003
更新日期：2006-05-01 00:00:00
abstract：:Nitric oxide (NO) has been suggested to play a crucial role in the regulation of lordosis behavior via stimulation of guanylyl cyclase to synthesize cyclic GMP. Whalen and Lauber (1986, Neurosci. Biobehav. Rev. 10, 47-53) hypothesized that hormones and pharmacological agents known to facilitate lordosis in estrogen-pr...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1006/hbeh.1997.1413
更新日期：1997-10-01 00:00:00
abstract：:Individually housed male mice were exposed to either an intact male or an ovariectomized female mouse for 1 min and decapitated at 5, 15, or 60 min to examine the hypothesis whether discrete changes in olfactory bulb neuropeptide (LHRH and TRH) and neurotransmitter (NE and DA) concentrations would occur following onse...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/0018-506x(83)90001-6
更新日期：1983-06-01 00:00:00
abstract：:In the field as well as in the laboratory, human-generated stress responses are reduced in adult animals previously habituated to humans in comparison to non-habituated individuals. In birds, yolk steroid levels vary with maternal environment and condition. We tested the hypothesis that the experience of female birds ...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2008.04.012
更新日期：2008-08-01 00:00:00
abstract：:Male wild house mice, selected for short (SAL) and long (LAL) attack latency, show distinctly different behavioral strategies in coping with environmental challenges. In this study, we tested the hypothesis that this difference in coping style is associated with a differential stress responsiveness of the hypothalamic...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/s0018-506x(02)00013-2
更新日期：2003-01-01 00:00:00
abstract：:Up to 80% of all bird species are socially monogamous. Divorce (switching partners) or pair disruption (due to the death of a partner) has been associated with decreased reproductive success, suggesting social monogamy is a strategy that may maximize fitness via coordination between partners. Previous studies have dem...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2016.11.004
更新日期：2017-01-01 00:00:00
abstract：:Previous studies have provided evidence that humans demonstrate subtle, but measurable, turning biases when tested in the absence of environmental constraints. Preferences for leftward or rightward rotation have been repeatedly demonstrated in rodents and appear to be modulated to a significant degree by ovarian hormo...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1006/hbeh.1997.1363
更新日期：1997-02-01 00:00:00
abstract：:Humans and wildlife are exposed to numerous anthropogenic drugs and pollutants. Many of these compounds are hormonally active, and recent evidence suggests that the presence of these endocrine disruptors permanently alters normal development and physiology in a variety of vertebrate species. Here, we report on the eff...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2006.01.007
更新日期：2006-06-01 00:00:00
abstract：:The transition to parenthood has been associated with declines in testosterone among partnered fathers, which may reflect males' motivation to invest in the family. Moreover, preliminary evidence has found that couples show correlations in hormone levels across pregnancy that may also be linked to fathers' preparation...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2016.07.005
更新日期：2017-04-01 00:00:00
abstract：:The aim of this study was to examine changes in rat emotional behavior and determine differences in the expression of GABA-A receptor alpha-2 subunits in brain structures of low- (LR) and high-anxiety (HR) rats after the repeated corticosterone administration. The animals were divided into LR and HR groups based on th...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2013.10.011
更新日期：2014-01-01 00:00:00
abstract：:To investigate whether changes in testosterone alter the frequency range in which a zebra finch produces song, we assigned male zebra finches to two groups, one of which received testosterone implants and the other empty silastic capsule implants. We then recorded songs up to 52 weeks after the surgery and measured fr...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2004.11.018
更新日期：2005-04-01 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
pub_type： 杂志文章
doi：10.1006/hbeh.1993.1038
更新日期：1993-12-01 00:00:00
abstract：:Aggressive interactions in Anolis carolinensis result in increased circulating levels of epinephrine (Epi) and norepinephrine (NE) and conspicuous color changes. This activation of the adrenergic component of an acute stress response is externally represented by the darkening of the postorbital eyespot of A. carolinen...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1006/hbeh.1994.1003
更新日期：1994-03-01 00:00:00
abstract：:This article is part of a Special Issue "Chemosignals and Reproduction". Chemical cues were probably the first cues ever used to communicate and are still ubiquitous among living organisms. Birds have long been considered an exception: it was believed that birds were anosmic and relied on their acute visual and acoust...
journal_title：Hormones and behavior
pub_type： 杂志文章,评审
doi：10.1016/j.yhbeh.2014.06.001
更新日期：2015-02-01 00:00:00
abstract：:The objectives of these studies were to evaluate the influence of testosterone propionate (TP), estradiol cypionate (EC), dihydrotestosterone propionate (DHTP), EC + TP, EC + DHTP, and TP + DHTP on traits of masculine sexual behavior in castrated adult male pigs of different breeds. Masculine sexual behavior was resto...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/0018-506x(89)90052-4
更新日期：1989-09-01 00:00:00
abstract：: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 MT1 and MT2 agonist and 5-HT2C antagonist, is effective against behavioral, bioch...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2018.11.007
更新日期：2019-01-01 00:00:00
abstract：:Tonic immobility (TI) is also known as "immobility response", "immobility reflex", "animal hypnosis", etc. It is an innate antipredatory behavior characterized by an absence of movement, varying degrees of muscular activity, and a relative unresponsiveness to external stimuli. Experimentally, TI is commonly produced b...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2011.07.013
更新日期：2011-09-01 00:00:00
abstract：:Fecal testosterone and cortisol levels were analyzed from six wild male muriquis (Brachyteles arachnoides) over a 19-month period at the Estação Biológica de Caratinga in Minas Gerais, Brazil, to investigate the hormonal correlates of seasonal sexual behavior and environmental conditions. Group mean testosterone level...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1006/hbeh.1998.1505
更新日期：1999-04-01 00:00:00
abstract：:Depression is one of the most common mental disorders and a primary cause of disability. To better treat patients suffering this illness, elucidation of the underlying psychopathological and neurobiological mechanisms is urgently needed. Based on the above-mentioned evidence, we sought to investigate the effects of ne...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2015.05.018
更新日期：2015-07-01 00:00:00
abstract：:The role of GABA neurons in the control of the surge of LH secretion was investigated by examining whether GABAA receptor antagonist bicuculline (BIC) infusion prior to the LH surge could advance the timing of the proestrous surge in the rat. The effect of the opioid receptor antagonist naloxone (NAL) was also examine...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1006/hbeh.1994.1039
更新日期：1994-12-01 00:00:00
abstract：:The impact of blood leakage due to microinjury to the oral cavity on the measurement of salivary hormones was examined. Saliva samples were collected before, immediately after, and then every 15 min for 1 h following vigorous tooth brushing. Blood in saliva was quantified by visual inspection of discoloration, Hemasti...
journal_title：Hormones and behavior
pub_type： 临床试验,杂志文章
doi：10.1016/j.yhbeh.2004.01.006
更新日期：2004-06-01 00:00:00
abstract：:Seasonal brain plasticity contributes to a variety of physiological and behavioral processes. We hypothesized that variations in GnRH expression and cell proliferation facilitated seasonal breeding and food hoarding. Here, we reported seasonal changes in sexual and social behavior, GnRH expression and brain cell proli...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2019.03.003
更新日期：2019-06-01 00:00:00
abstract：:Two experiments assessed the effects of neonatal testosterone treatment on paced mating behavior and conditioned place preference in female rats. In both experiments, females received s.c. injections of 5.0 microg testosterone propionate or oil vehicle at three days postpartum. As adults, females were ovariectomized a...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/s0018-506x(03)00157-0
更新日期：2003-11-01 00:00:00
abstract：:The role of reproductive hormones in mediating sexual desire in healthy women is still unclear. Elucidation was sought in this study by comparing the hormonal milieu of two groups of subjects with markedly different levels of sexual desire. Seventeen women ages 27-39 who met DSM III-R criteria for severe, persistent, ...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/0018-506x(89)90063-9
更新日期：1989-06-01 00:00:00
abstract：:Behavioral lateralization is common in animals and may be expressed at the individual- and at the population-level. The ontogenetic processes that control lateralization, however, are largely unknown. Well-established sex-dependence in androgen physiology and sex-dependent variation in lateralization have led to the h...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2016.01.007
更新日期：2016-04-01 00:00:00
abstract：:Sex differences are well documented and are conventionally associated with intense sex-specific selection. For example, spatial memory is frequently better in males, presumably due to males' tendency to navigate large spaces to find mates. Alternatively, monogamy (in which sex-specific selection is relatively relaxed)...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2017.08.003
更新日期：2017-09-01 00:00:00
