Allison A. Bailey's research while affiliated with University of Alberta and other places

Publications (6)

Article
Full-text available
Black-capped (Poecile atricapillus) and mountain chickadees (Poecile gambeli) have been used as a model to examine cognitive functions including perception, episodic-like memory, and spatial learning and orientation. Recently, these species have been used in two studies to examine the relationship between learning and novel environment exploration...
Article
Full-text available
Anogenital distance (AGD) and the ratio of the second (index) to fourth (ring) digit lengths (2D:4D) are two widely used indicators of prenatal androgen exposure. The former is commonly used in rodent models, while the latter is principally used in human studies. We investigated variation in these two traits in C57BL/6J mice to test the hypothesis...
Article
Variation in the influence of prenatal androgens is thought to be reflected in an individual’s finger length ratio (2D:4D). Many recent studies have examined the relationship between adult finger length ratio and traits thought to be affected by prenatal androgens. For example, Martin, Manning, and Dowrick (1999) have suggested that increased risk...
Article
Digit ratio (2D:4D) is a trait, which is sexually differentiated in a variety of species. In humans, males typically have shorter second digits (2Ds) (index fingers) compared to fourth digits (4Ds) (ring fingers) whereas females' fingers are more equal in length. Smaller, more masculine, digit ratios are thought to be associated with higher prenata...
Article
Finger length ratio (2D:4D) is a sexually dimorphic trait. Men have relatively shorter second digits (index fingers) than fourth digits (ring fingers). Smaller, more masculine, digit ratios are thought to be associated with either higher prenatal testosterone levels or greater sensitivity to androgens, or both. Men with more masculine finger ratios...

Citations

... For example, association between low 2D:4D and presence of neuro developmental disorders (NDDs) (Al-Zaid et al., 2015;De et al., 2007;Manning et al., 2001), impairments thought to partly arise from androgenic effect on fetal neurodevelopment (Kelemenova & Ostatnikova, 2008). Similarly, 2D:4D have also been utilized in investigations regarding correlation with other human traits like depression (Bailey & Hurd, 2005) and cardiovascular risk factors (Oyeyemi et al., 2014). Still, the utilization of digit ratio as marker for testosterone's prenatal effects is questioned and the scientific basis and use are not agreed upon (Leslie, 2019). ...
... ).Guillette, Bailey, Reddon, Hurd, & Sturdy, (2010) reported that male chickadees (Black-capped chickadees, Poecile atricapillus and mountain chickadees, Poecile gambeli) showed consistency in their capture order, while females did not. Once captured, the handling and transport of animals to the testing site might generate stress, which may affect individuals differently, compromising the personality experiments. ...
... Digit ratio has also been associated with a host of sexually dimorphic behaviors and abilities. For example, males with smaller 2D:4D ratios show greater levels of aggression (Bailey and Hurd 2005;Benderlioglu and Nelson 2004;Hönekopp and Watson 2010) and competitiveness (e.g., Borráz-León et al. 2018) as compared to males with larger ratios, and are more likely to engage in risk-taking behaviors (e.g., Stenstrom et al. 2011). Additionally, 2D:4D ratio is negatively related to physical fitness and athletic prowess in both males and females (Eklund et al. 2020;Hönekopp and Schuster 2010;Hönekopp et al. 2006;Hsu et al. 2015), such that smaller digit ratios are associated with superior physical performance. ...
... However, there are some inconsistent findings in the literature. For example, inconsistency has been reported in the direction of the sex differences among mice (i.e., females > males: Brown et al., 2002;Manning et al., 2003; females < males or no sex differences: Bailey et al., 2005;Hurd et al., 2008;Manno, 2008;Yan et al., 2009) and in the direction of effect of androgenization on digit ratios (i.e., Zheng & Cohn report that blocking AR via pharmacological manipulations or genetic knockout increased digit ratios, Huber et al., (2017) report that pharmacological inhibition of AR decreased digit ratios). As such, when we refer to an increase in masculinization or indicate that there is evidence that digit ratios are more male-typical, we are referring to whether the differences in ratios were more in the male-typical direction based on the observed sex differences for that species/study. ...
... However, there are some inconsistent findings in the literature. For example, inconsistency has been reported in the direction of the sex differences among mice (i.e., females > males: Brown et al., 2002;Manning et al., 2003; females < males or no sex differences: Bailey et al., 2005;Hurd et al., 2008;Manno, 2008;Yan et al., 2009) and in the direction of effect of androgenization on digit ratios (i.e., Zheng & Cohn report that blocking AR via pharmacological manipulations or genetic knockout increased digit ratios, Huber et al., (2017) report that pharmacological inhibition of AR decreased digit ratios). As such, when we refer to an increase in masculinization or indicate that there is evidence that digit ratios are more male-typical, we are referring to whether the differences in ratios were more in the male-typical direction based on the observed sex differences for that species/study. ...