Men with elevated testosterone levels show more affiliative behaviours during interactions with women

Meij, Leander van der; Almela, Mercedes; Buunk, Abraham P.; Fawcett, Tim W.; Salvador, Alicia

doi:10.1098/rspb.2011.0764

Cited by 57 publications

(38 citation statements)

References 29 publications

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“…In agreement with the findings, Suarez and Sukprasert et al (73,74) have also reported that the mean semen volume is related to increased sperm morphology and motility as the rate of abstinence increases from day 3 to day 8 (75,76). However, after day 8 the level of motility and percentage morphology reduces meaning there is no benefit in semen volume that can be obtained beyond day 9 of abstinence among oligozoospermia patients (77).…”

Section: Resultssupporting

confidence: 74%

Sexual Abstinence and Sperm Quality

AlAwlaqi¹,

Hammadeh²

2017

IJWHR

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Background: Previous research has documented that sexual abstinence can improve sperm quality. Sexologists have reported that sperms stored in a latex condom decrease at a rate of 60% per minute. Objective: The objective of the current review is to explore the relationship between sexual abstinence duration and other factors that affect standard and substandard semen production. Design: A scientific review of published literature. Main Outcome Measure: Specific focus is to discuss how sexual abstinence behaviours relate to the production, quality and efficiency of sperms and semen in relation to the different characteristics such as duration of abstinence, age, and psychological behaviours. The study will also seek to verify if there is a link between sexual abstinence and semen production or what triggers semen production in men. Results: From the reviewed literature, data analysis on oligozoospermic samples indicated a peak motility of 30% after 1 day of abstinence. After 2 days of abstinence, the recorded average percentage of the normal sperm morphologies among the moderate and mild oligozoospermic samples ranged from 7% to 8.5%. The increase of the normal sperm morphology was statistically significant (P < 0.003) and sperm motility (P < 0.001) that were in line with the average percentage production of 7.5% and 31.9%, respectively. The significant sperm production was recorded between day 3 and day 8 of abstinence. Conclusion:The data obtained supports the literature on abstinence in facilitating male infertility treatment. Thus, the data argues that so as to present the best semen samples for fertility treatment, men should collect semen sample after 3-8 days of abstinence as recommended by the World Health Organization (WHO). Patients that present normal sperms give sperm donations for cryopreservation ought to be informed not to exceed the 10-day abstinence duration as the quality of the sperms is compromised.

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Section: Resultssupporting

confidence: 74%

Sexual Abstinence and Sperm Quality

AlAwlaqi¹,

Hammadeh²

2017

IJWHR

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“…come from studies that have looked at downstream effects of reactive hormone increases. Carre and Olmstead (2015) recently reviewed the growing number of studies that have reported positive correlations between the size of transient testosterone increases and the magnitudes of subsequent behaviors ranging from reactive aggression (e.g., Carre et al, 2013), decisions to compete with another participant (e.g., Mehta & Josephs, 2006), weight-lifting performance (Cook & Crewther, 2012), and courtship-like behaviors directed toward women confederates (van der Meij et al, 2012). Transient increases were reactions to stimuli in these studies, but other research has shown that exogenous testosterone administration can produce effects such as reduced fear responses (e.g., Hermans et al, 2006) and increased amygdala and hypothalamic reactivity to angry faces (Goetz et al, 2014).…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Theoretical frameworks for human behavioral endocrinology

Roney

2016

Hormones and Behavior

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How can we best discover the ultimate, evolved functions of endocrine signals within the field of human behavioral endocrinology? Two related premises will guide my proposed answer. First, hormones typically have multiple, simultaneous effects distributed throughout the brain and body, such that in an abstract sense their prototypical function is the coordination of diverse outcomes. Second, coordinated output effects are often evolved, functional responses to specific eliciting conditions that cause increases or decreases in the relevant hormones. If we accept these premises, then a natural way to study hormones is to hypothesize and test how multiple eliciting conditions are mapped into coordinated output effects via hormonal signals. I will call these input-output mappings "theoretical frameworks." As examples, partial theoretical frameworks for gonadal hormones will be proposed, focusing on the signaling roles of testosterone in men and on estradiol and progesterone in women. Recent research on oxytocin in humans will also be considered as an example in which application of the theoretical framework approach could be especially helpful in making functional sense of the diverse array of findings associated with this hormone. The theoretical framework approach is not especially common in the current literature, with many theories having eschewed explicit consideration of input-output mappings in favor of parsimony-based arguments that attempt to find the one main thing that a hormone does with respect to psychology or behavior. I will argue that these parsimony-based models have many shortcomings, and conclude that the construction and testing of theoretical frameworks provides a better means of discovering the evolved functions of human endocrine signals.

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“…Cortisol response was calculated by saving the unstandardized residual scores from the regression analyses, using pre-stress cortisol as a predictor and poststress cortisol as the dependent variable for men and women separately (Mehta et al, 2008;van der Meij et al, 2012). The same method was used to calculate the change in DS-Forward and DS-Backward performance.…”

Section: Relationship Between Cortisol and Ds-forward And Ds-backwardmentioning

confidence: 99%

Acute stress and working memory in older people

Pulopulos

Hidalgo

Almela

et al. 2015

Stress

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Several studies have shown that acute stress affects working memory (WM) in young adults, but the effect in older people is understudied. As observed in other types of memory, older people may be less sensitive to acute effects of stress on WM. We performed two independent studies with healthy older men and women (from 55 to 77 years old) to investigate the effects of acute stress (Trier Social Stress Test; TSST) and cortisol on WM. In study 1 (n = 63), after the TSST women (but not men) improved their performance on Digit Span Forward (a measure of the memory span component of WM) but not on Digit Span Backward (a measure of both memory span and the executive component of WM). Furthermore, in women, cortisol levels at the moment of memory testing showed a positive association with the memory span component of WM before and after the TSST, and with the executive component of WM only before the stress task. In study 2 (n = 76), although participants showed a cortisol and salivary alpha-amylase (sAA) response to the TSST, stress did not affect performance on Letter-Number Sequencing (LNS; a task that places a high demand on the executive component of WM). Cortisol and sAA were not associated with WM. The results indicate that circulating cortisol levels at the moment of memory testing, and not the stress response, affect memory span in older women, and that stress and the increase in cortisol levels after stress do not affect the executive component of WM in older men and women. This study provides further evidence that older people may be less sensitive to stress and stress-induced cortisol response effects on memory processes.

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Men with elevated testosterone levels show more affiliative behaviours during interactions with women

Cited by 57 publications

References 29 publications

Sexual Abstinence and Sperm Quality

Sexual Abstinence and Sperm Quality

Theoretical frameworks for human behavioral endocrinology

Acute stress and working memory in older people

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