Jillian J. M. O'Connor

Jillian J. M. O'Connor
Queen's University | QueensU · Department of Psychology

PhD

About

29
Publications
18,299
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
929
Citations
Introduction
My research examines the adaptive function of human vocal and facial sexual dimorphism. I examine how vocal and facial masculinity-femininity influences preferences for mates and perceptions of potential intrasexual rivals. My current research focuses on individual differences in women's preferences for men with low pitched voices, the interaction between facial attractiveness and romantic reputation on memory, and the effect of intrasexual competition outcomes on competitor derogation.
Additional affiliations
August 2018 - present
Concordia University Montreal
Position
  • Professor (Assistant)
Description
  • Courses: Statistics I, Advanced Research Methods & Design, Fundamentals of Cognitive Psychology, Fundamentals of Social Psychology
May 2015 - August 2017
University of Guelph
Position
  • PostDoc Position
September 2013 - September 2014
McMaster University
Position
  • PostDoc Position
Education
September 2008 - July 2013
McMaster University
Field of study
  • Psychology
September 2004 - April 2008
McMaster University
Field of study
  • Psychology

Publications

Publications (29)
Article
Speech contains both explicit social information in semantic content and implicit cues to social behaviour and mate quality in voice pitch. Voice pitch has been demonstrated to have pervasive effects on social perceptions, but few studies have examined these perceptions in the context of meaningful speech. Here, we examined whether male voice pitch...
Article
Perceptions of trustworthiness are an important predictor of social outcomes, such as monetary exchanges, criminal sentencing, and the attainment of leadership roles. Higher testosterone levels predict both lower voice pitch and untrustworthy behavior, across economic and mating contexts. Here, we tested the influence of voice pitch on perceptions...
Article
Full-text available
The binding of incongruent cues poses a challenge for multimodal perception. Indeed, although taller objects emit sounds from higher elevations, low-pitched sounds are perceptually mapped both to large size and to low elevation. In the present study, we examined how these incongruent vertical spatial cues (up is more) and pitch cues (low is large)...
Article
Full-text available
Studies of several mammalian species confirm that formant frequencies (vocal tract resonances) predict height and weight better than does fundamental frequency (F0, perceived as pitch) in same-sex adults due to differential anatomical constraints. However, our recent meta-analysis (Pisanski et al., 2014, Animal Behaviour, 95, 89–99) indicated that...
Article
Animals often use acoustical cues, such as formant frequencies, to assess the size of potential mates and rivals. Reliable vocal cues to size may be under sexual selection. In most mammals and many other vertebrates, formants scale with vocal tract length allometrically and predict variation in size more reliably than fundamental frequency or pitch...
Article
Full-text available
Low male voice pitch may communicate potential benefits for offspring in the form of heritable health and/or dominance, whereas access to resources may be indicated by correlates of socioeconomic status, such as sociolinguistic features. Here, we examine if voice pitch and social dialect influence women's perceptions of men's socioeconomic status a...
Article
Full-text available
Listeners associate low voice pitch (fundamental frequency and/or harmonics) and formants (vocal-tract resonances) with large body size. Although formants reliably predict size within sexes, pitch does not reliably predict size in groups of same-sex adults. Voice pitch has therefore long been hypothesized to confound within-sex size assessment. Her...
Article
Full-text available
Research suggests that the desire to behave sexually with a partner (dyadic sexual desire) may reflect desire for intimacy whereas solitary sexual desire may reflect pleasure seeking motivations more generally. Because direct reproductive success can only be increased with a sexual partner, we tested whether dyadic sexual desire was a better predic...
Article
Women typically rate lower-pitched men's voices as more attractive than they rate higher-pitched men's voices, yet women also perceive men with lower-pitched voices as relatively less likely to be sexually faithful. This disparity between women's preferences for voice pitch and perceptions of fidelity may be due to the differences in the characteri...
Article
Humans are better able to discriminate among human faces than faces of other species. This difference in perceptual discrimination is known as the “other-species effect”. Models of perception have posited that the ultimate functional significance of the other-species effect is a higher discrimination capability within an organism's most familiar an...
Article
Full-text available
Men generally prefer feminine women's faces and voices over masculine women's faces and voices, and these cross-modal preferences are positively correlated. Men's preferences for female facial and vocal femininity have typically been investigated independently by presenting soundless still images separately from audio-only vocal recordings. For the...
Data
Example of video stimuli with masculinized face and masculinized voice. (MOV)
Data
Example of video stimuli with feminized face and masculinized voice. (MOV)
Data
Example of video stimuli with masculinized face and feminized voice. (MOV)
Data
Example of video stimuli with feminized face and feminized voice. (MOV)
Thesis
Full-text available
Previous research indicates that vocal and facial masculinity and femininity influence perceptions of attractiveness. Men generally perceive women with feminine traits as more attractive than less feminine women. This may be because women who possess more feminine traits are likely to be healthier and more fertile mates than are less feminine women...
Article
Full-text available
Available online xxx MS. number: A12-00235R Keywords: functional honesty honest signal vocal attractiveness vocal dominance voice pitch Previous research has shown that men prefer higher-pitched women's voices and women prefer lower-pitched men's voices. However, both men and women can modulate their voice pitch, which can affect others' perception...
Article
Full-text available
Although most research on human facial attractiveness has used front-facing two-dimensional (2D) images, our primary visual experience with faces is in three dimensions. Because face coding in the human visual system is viewpoint-specific, faces may be processed differently from different angles. Thus, results from perceptual studies using front-fa...
Article
Vocal and facial masculinity are cues to underlying testosterone in men and influence women’s mate preferences. Consistent with the proposal that facial and vocal masculinity signal common information about men, prior work has revealed correlated female preferences for male facial and vocal masculinity. Previous studies have assessed women’s prefer...
Article
Full-text available
Manipulations of voice pitch have been shown to alter attractiveness ratings, but whether preferences extend to very low or very high voice pitch is unknown. Here, we manipulated voice pitch in averaged men's and women's voices by 2 Hz intervals to create a range of male and female voices speaking monopthong vowel sounds and spanning a range of fre...
Article
Full-text available
The degree to which men invest financial resources, time, and effort into pursuing and maintaining relationships may be perceived by women as a cue to that man’s suitability as father and a mate. Women’s mate preferences are also influenced by cues to underlying heritable mate quality, such as an attractive, masculine voice. Relatively more masculi...
Article
The assessment of same-sex individuals as intrasexual competitors may depend in part on the perceived mate value of potential rivals. Men’s and women’s preferences for vocal and facial masculinity suggest that feminine women and masculine men may be perceived as more threatening intrasexual competitors. We tested the influence of men’s and women’s...
Article
Full-text available
Prior work has emphasized independent effects of voice pitch and apparent vocal tract length on women's preferences for men's voices. An interaction between the effects of pitch and apparent vocal tract length on male vocal attractiveness might be expected, however, given interactions between the effects of voice pitch and apparent vocal tract leng...
Article
Full-text available
Sexual infidelity can be costly to members of both the extra-pair and the paired couple. Thus, detecting infidelity risk is potentially adaptive if it aids in avoiding cuckoldry or loss of parental and relationship investment. Among men, testosterone is inversely related to voice pitch, relationship and offspring investment, and is positively relat...
Article
Vocal and facial masculinity are cues to underlying testosterone in men and 24 influence women’s mate preferences. Consistent with the proposal that facial and vocal masculinity signal common information about men, prior work has revealed correlated female preferences for male facial and vocal masculinity. Previous studies have assessed women’s pre...
Article
Full-text available
Sexual infidelity can be costly to members of both the extra-pair and the paired couple. Thus, detecting infidelity risk is potentially adaptive if it aids in avoiding cuckoldry or loss of parental and relationship investment. Among men, testosterone is inversely related to voice pitch, relationship and offspring investment, and is positively relat...
Article
Full-text available
Prior work has emphasized independent effects of voice pitch and apparent vocal tract length on women's preferences for men's voices. An interaction between the effects of pitch and apparent vocal tract length on male vocal attractiveness might be expected, however, given interactions between the effects of voice pitch and apparent vocal tract leng...
Article
It may be adaptive for voters to recognize good leadership qualities among politicians. Men with lower-pitched voices are found to be more dominant and attractive than are men with higher-pitched voices. Candidate attractiveness and vocal quality relate to voting behavior, but no study has tested the influence of voice pitch on voting-related perce...

Network

Cited By