Julia Nakamura
Doctor of Philosophy in Psychology (PhD)
Research Topic
Volunteering with the Canadian Red Cross: recruiting, training, engaging, and promoting health and well-being of Canadian volunteers
Frances Chen
Associate Professor
Research Classification
Research Interests
social connection
social support
stress
coping
conflict and negotiation
hormones
Neuroendocrinology
Relevant Thesis-Based Degree Programs
Affiliations to Research Centres, Institutes & Clusters
Research Options
I am available and interested in collaborations (e.g. clusters, grants).
I am interested in and conduct interdisciplinary research.
I am interested in working with undergraduate students on research projects.
Research Methodology
Experimental
interventions
Recruitment
Master's students
Doctoral students
Postdoctoral Fellows
Any time / year round
I am currently recruiting graduate students and postdocs interested in:
- understanding how hormonal changes during puberty affect teenagers’ social and emotional development
-
investigating how loneliness and social contact “get under the skin” to affect our physical health
- developing interventions to promote social connection
Complete these steps before you reach out to a faculty member!
Check requirements
- Familiarize yourself with program requirements. You want to learn as much as possible from the information available to you before you reach out to a faculty member. Be sure to visit the graduate degree program listing and program-specific websites.
- Check whether the program requires you to seek commitment from a supervisor prior to submitting an application. For some programs this is an essential step while others match successful applicants with faculty members within the first year of study. This is either indicated in the program profile under "Admission Information & Requirements" - "Prepare Application" - "Supervision" or on the program website.
Focus your search
- Identify specific faculty members who are conducting research in your specific area of interest.
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Make a good impression
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ADVICE AND INSIGHTS FROM UBC FACULTY ON REACHING OUT TO SUPERVISORS
These videos contain some general advice from faculty across UBC on finding and reaching out to a potential thesis supervisor.
Supervision Enquiry
If you have reviewed some of this faculty member's publications, understand their research interests and have reviewed the admission requirements, you may submit a contact request to this supervisor.
Graduate Student Supervision
Doctoral Student Supervision
Dissertations completed in 2010 or later are listed below. Please note that there is a 6-12 month delay to add the latest dissertations.
Prosocial behaviour as an antidote to social disconnection : exploring the links between prosocial behaviour, loneliness, and social contact in daily life (2023)
Engaging in prosocial behaviour—voluntary acts to benefit others—may be effective for restoring individuals’ social connections with others. In three studies, I investigated the links between daily loneliness, social contact, and prosocial behaviour. Study 1 examined daily associations between loneliness and prosocial engagement using daily life assessments of 100 middle-aged and older adults in the community. Adults high in chronic loneliness, but not those low in chronic loneliness, exhibited decreased prosocial behaviours on days during which they reported elevated transient loneliness. The findings suggest that chronic loneliness may elicit maladaptive responses to transient loneliness by reducing prosocial engagement. Building on these findings, Studies 2 and 3 investigated whether an intervention designed to increase daily prosocial behaviour would reduce the subjective experience of loneliness and increase the objective number of social contacts among university students (Study 2) and lonely adults in the community (Study 3). In Study 2 (N = 407), the kindness intervention—compared to an active control intervention—increased daily social contact, especially with close others, and reduced daily loneliness for participants who reported high baseline loneliness. In Study 3 (N = 208), participants who completed a modified version of the same kindness intervention showed sustained daily social contact after the intervention, whereas participants who completed an active control intervention showed decreased daily social contact after the intervention. The kindness intervention also reduced daily feelings of loneliness, though not significantly more than the active control intervention. This dissertation contributes to the growing literature on the benefits of prosocial behavior by providing preliminary evidence that it may help to address social disconnection. However, further work will be needed to refine the intervention and confirm the effects documented in these initial studies.
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The smelly truth: evidence that exposure to the scent of a romantic partner reduces stress reactivity and improves sleep efficiency (2020)
Close contact with loved ones is essential for both mental and physical health. Social support provided by loved ones can reduce stress, improve sleep quality, promote positive health behaviors, and increase resilience to adversity. In everyday life, however, people commonly experience periods of separation from their loved ones. Can the benefits of social support occur even when loved ones are physically distant? The study reported in Chapter 2 collected data from 96 women who were randomly assigned to smell one of three scents (their romantic partner’s, a stranger’s, or a neutral scent) and exposed to an acute social stressor (Trier Social Stress Test). Perceived stress and cortisol were measured continuously throughout the study. Perceived stress was reduced in women who were exposed to their partner’s scent. Cortisol levels were elevated in women who were exposed to a stranger’s scent. Cortisol levels were also reduced in women who were exposed to their partner’s scent, but only in a subset of women who were able to identify their partner’s scent. These results suggest that the scent of a partner improves the psychological experience of stress and improves cortisol levels in a subset of women who correctly identified the scent to be their partner’s. The study reported in Chapter 3 collected data from 155 participants who spent two nights with their partner’s scent and two nights with a control scent (order randomized). Sleep efficiency (via actigraphy) and perceived sleep quality (via self-report) were measured each night. Sleep efficiency was higher when participants were exposed to their partner’s scent. Exposure to a partner’s scent led sleep efficiency to increase by over two percent on average, an improvement similar in magnitude to the effect of melatonin on sleep. Perceived sleep quality was higher when participants believed they were smelling their partner’s scent. These results suggest that the scent of a partner improves the physiological state of sleep and that believing you are exposed to the scent of your partner improves the psychological recollection of sleep quality. This research adds to our understanding of the role of olfactory cues in the communication of social support.
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Master's Student Supervision
Theses completed in 2010 or later are listed below. Please note that there is a 6-12 month delay to add the latest theses.
Loneliness and the heart: examining the associations between trait loneliness, state loneliness, and high-frequency heart rate variability (2019)
Loneliness is a recognized risk factor for numerous adverse health outcomes, including early death. However, state loneliness may also be evolutionarily adaptive by signaling our social connection to others is at risk and motivating social reaffiliation. Long-term and short-term changes in vagal parasympathetic functioning may represent a mechanism by which both detrimental and beneficial effects of loneliness impact human physiology. The present study investigates the differential influences of trait loneliness and state loneliness on high-frequency heart rate variability (HF-HRV), an index of vagal parasympathetic activity. In controlled laboratory settings, HF-HRV in young women (N = 148) was monitored before, during, and after a cognitive challenge task, as well as before, during, and after an induction of state loneliness. Replicating and extending prior research, higher trait loneliness predicted blunted HF-HRV reactivity to cognitive demand, controlling for covariates. Higher trait loneliness also predicted blunted HF-HRV recovery following cognitive demand, although this appeared to be a function of initial blunted HF-HRV reactivity among the chronically lonely. Consistent with the evolutionary theory of loneliness, acute state loneliness was associated with increased HF-HRV above baseline levels, regardless of self-reported trait loneliness. During recovery from state loneliness, trait loneliness predicted change in HF-HRV, such that HF-HRV decreased in high trait-lonely women, whereas HF-HRV increased in low trait-lonely women. The current findings indicate that trait loneliness is associated with a potentially maladaptive physiological response to cognitive demand. The study also provides the first evidence of increased vagal parasympathetic activity during acute state loneliness, a potential indication of a physiological state conducive to social engagement behaviours. The findings further suggest that physiological capacity for social engagement may differ as a function of trait loneliness, immediately following an acute experience of loneliness. Finally, the utility of a robust loneliness induction paradigm developed from existing methods was demonstrated, supporting its application in future research seeking to disentangle trait and state loneliness.
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Meal choice modeling in a cafe: the roles of relationship, awareness, and familiarity (2017)
It is well established that the presence of other people affects how much people eat and the types of food they choose. Past research on food choice modeling has focused on snack foods and has primarily been conducted in controlled laboratory situations. The current research examines modeling of meal choice in a real-life context across two studies. Study 1 (N = 231 café patrons) tested whether meal choice modeling occurs, whether people are aware of being influenced, and whether knowing the model affects whether modeling occurs. The lunch orders of café patrons were surreptitiously tracked and participants were recruited after they paid for their lunch. Participants were asked whether they were influenced by the prior order, and what their relationship was to the person ahead of them in line. As hypothesized, participants modeled the lunch choice of the person ordering ahead of them in line above rates expected by chance. Contrary to predictions about the role of relationship, participants did not model at different rates following a stranger compared to a non-stranger. Hypotheses about modeling awareness were supported with a significant modeling effect observed even among participants who reported that their order was not influenced by the prior order. Study 2 (N = 69 students) tested familiarity to the café or social environment as a moderator. To increase variability in familiarity with the café, participants were students brought into the café for the study. Study 2 yielded inconclusive findings, possibly due to low statistical power. This research provided evidence of meal choice modeling occurring in real-life eating situations and outside of conscious awareness - demonstrating a powerful social influence on health behaviours.
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News Releases
This list shows a selection of news releases by UBC Media Relations over the last 5 years.
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Smelling your lover’s shirt could improve your sleep (13 Feb 2020)
Publications
- Association between adolescent oral contraceptive use and future major depressive disorder: a prospective cohort study (2021)
Journal of Child Psychology and Psychiatry and Allied Disciplines, - Effects of Chronic and State Loneliness on Heart Rate Variability in Women (2021)
Annals of Behavioral Medicine, 55 (5), 460-475 - Social integration after moving to a new city predicts lower systolic blood pressure (2021)
Psychophysiology, - The effects of exercise intensity on the cortisol response to a subsequent acute psychosocial stressor (2021)
Psychoneuroendocrinology, 131 - Common variants of the oxytocin receptor gene do not predict the positive mood benefits of prosocial spending (2020)
Emotion, 20 (5), 734-749 - Conversational receptiveness: Improving engagement with opposing views (2020)
Organizational Behavior and Human Decision Processes, 160, 131-148 - Oral contraceptive use in adolescence predicts lasting vulnerability to depression in adulthood (2020)
Journal of Child Psychology and Psychiatry and Allied Disciplines, 61 (2), 148-156 - The Scent of a Good Night’s Sleep: Olfactory Cues of a Romantic Partner Improve Sleep Efficiency (2020)
Psychological Science, 31 (4), 449-459 - The Upside to Feeling Worse Than Average (WTA): A Conceptual Framework to Understand When, How, and for Whom WTA Beliefs Have Long-Term Benefits (2020)
Frontiers in Psychology, 11 - What Your Nose Knows: Affective, Cognitive, and Behavioral Responses to the Scent of Another Person (2020)
Current Directions in Psychological Science, 29 (6), 617-623 - Why won't you listen to me? Measuring receptiveness to opposing views (2020)
Management Science, 66 (7), 3069-3094 - Evaluating a web-based social anxiety intervention among community users: Analysis of real-world data (2019)
Journal of Medical Internet Research, 21 (1) - Evaluating a web-based social anxiety intervention among university students: Randomized controlled trial (2018)
Journal of Medical Internet Research, 20 (3) - Facebook undermines the social belonging of first year students (2018)
Personality and Individual Differences, 133, 13-16 - Long-Term Health Implications of Students’ Friendship Formation during the Transition to University (2018)
Applied Psychology: Health and Well-Being, 10 (2), 290-308 - Olfactory cues from romantic partners and strangers influence women' responses to stress (2018)
Journal of Personality and Social Psychology, 114 (1), 1-9 - Petting away pre-exam stress: The effect of therapy dog sessions on student well-being (2018)
Stress and Health, 34 (3), 468-473 - Vegetarian or meat? Food choice modeling of main dishes occurs outside of awareness (2018)
Appetite, 121, 50-54 - Are sentiments subject to selection pressures? The case of oxytocin (2017)
The Behavioral and brain sciences, 40, e231 - From Misperception to Social Connection: Correlates and Consequences of Overestimating Others’ Social Connectedness (2017)
Personality and Social Psychology Bulletin, 43 (12), 1696-1711 - Oxytocin and the emergence of individual differences in the social regulation of stress (2017)
Social and Personality Psychology Compass, 11 (8) - Cortisol modulates men's affiliative responses to acute social stress (2016)
Psychoneuroendocrinology, 63, 1-9 - Oxytocin receptor gene polymorphism modulates the effects of social support on heart rate variability (2016)
Biological Psychology, 117, 43-49 - Genetic modulation of oxytocin sensitivity: A pharmacogenetic approach (2015)
Translational Psychiatry, 5 (10) - Effects of acute social stress on emotion processing in children (2014)
Psychoneuroendocrinology, 40 (1), 91-95 - Oxytocin increases the likeability of physically formidable men (2014)
Social Cognitive and Affective Neuroscience, 10 (6), 797-800 - Epigenetic regulation of the oxytocin receptor gene: Implications for behavioral neuroscience (2013)
Frontiers in Neuroscience, (7 MAY) - In the Eye of the Beholder: Eye Contact Increases Resistance to Persuasion (2013)
Psychological Science, 24 (11), 2254-2261 - Neuropeptide S receptor gene is associated with cortisol responses to social stress in humans (2013)
Biological Psychology, 93 (2), 304-307 - Oxytocin sharpens self-other perceptual boundary (2013)
Psychoneuroendocrinology, 38 (12), 2996-3002 - An oxytocin receptor gene variant predicts attachment anxiety in females and autism-spectrum traits in males (2012)
Social Psychological and Personality Science, 3 (1), 93-99 - Integrative approaches utilizing oxytocin to enhance prosocial behavior: From animal and human social behavior to autistic social dysfunction (2012)
Journal of Neuroscience, 32 (41), 14109-14117 - Oxytocin (2012)
Psychobiological Approaches for Anxiety Disorders: Treatment Combination Strategies, , 123-143 - Brief report: Broader autism phenotype predicts spontaneous reciprocity of direct gaze (2011)
Journal of Autism and Developmental Disorders, 41 (8), 1131-1134 - Common oxytocin receptor gene (OXTR) polymorphism and social support interact to reduce stress in humans (2011)
Proceedings of the National Academy of Sciences of the United States of America, 108 (50), 19937-19942 - Oxytocin and intergroup relations: Goodwill is not a fixed pie (2011)
Proceedings of the National Academy of Sciences of the United States of America, 108 (13) - Oxytocin receptor (OXTR) polymorphisms and attachment in human infants (2011)
Frontiers in Psychology, 2 (AUG) - Socioemotional information processing in human infants: From genes to subjective construals (2011)
Emotion Review, 3 (2), 169-178 - At the intersection of social and cognitive development: Internal working models of attachment in infancy (2010)
Cognitive Science, 34 (5), 807-825 - Tell me more: The effects of expressed interest on receptiveness during dialog (2010)
Journal of Experimental Social Psychology, 46 (5), 850-853 - Evidence for infants' internal working models of attachment: Short report (2007)
Psychological Science, 18 (6), 501-502
Current Students & Alumni
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