Timothy J. Loving

Attachment avoidance predicts inflammatory responses to marital conflict

Marital stress has been associated with immune dysregulation, including increased production of interleukin-6 (IL-6). Attachment style, ones expectations about the availability and responsiveness of others in intimate relationships, appears to influence physiological stress reactivity and thus could influence inflammatory responses to marital conflict. Thirty-five couples were invited for two 24-h admissions to a hospital research unit. The first visit included a structured social support interaction, while the second visit comprised the discussion of a marital disagreement. A mixed effect within-subject repeated measure model indicated that attachment avoidance significantly influenced IL-6 production during the conflict visit but not during the social support visit. Individuals with higher attachment avoidance had on average an 11% increase in total IL-6 production during the conflict visit as compared to the social support visit, while individuals with lower attachment avoidance had, on average, a 6% decrease in IL-6 production during the conflict visit as compared to the social support visit. Furthermore, greater attachment avoidance was associated with a higher frequency of negative behaviors and a lower frequency of positive behaviors during the marital interaction, providing a mechanism by which attachment avoidance may influence inflammatory responses to marital conflict. In sum, these results suggest that attachment avoidance modulates marital behavior and stress-induced immune dysregulation.

Older Spouses’ Cortisol Responses to Marital Conflict: Associations With Demand/Withdraw Communication Patterns

We examined 31 older couples’ wife demand/husband withdraw communication patterns and cortisol responses to marital conflict. Regression analyses indicated that wife demand/husband withdraw sequences during conflict related to cortisol responses only for wives. Based on a mixed model that accounted for the interdependence of spouses’ perceptions of communication patterns and outcomes, older spouses who reported greater wife demand/husband withdraw patterns in their marriage had greater cortisol responses during a conflict discussion; actual demand-withdraw did not relate to cortisol responses in this model. Findings suggest that perceived communication patterns contribute to neuroendocrine responses to marital conflict, and implications for marriage and health research with older couples are discussed.

Attachment Anxiety Is Linked to Alterations in Cortisol Production and Cellular Immunity

Although evidence suggests that attachment anxiety may increase risk for health problems, the mechanisms underlying these effects are not well understood. In the current study, married couples (N = 85) provided saliva samples over 3 days and blood samples on two occasions. Participants with higher attachment anxiety produced more cortisol and had fewer numbers of CD3+ T cells, CD45+ T cells, CD3+CD4+ helper T cells, and CD3+CD8+ cytotoxic T cells than participants with lower attachment anxiety. Higher cortisol levels were also related to fewer numbers of CD3+, CD45+, CD3+CD4+, and CD3+CD8+ cells, which is consistent with research showing that cortisol alters the cellular immune response. These data suggest that attachment anxiety may have physiological costs, and they provide a glimpse into the pathways through which social relationships affect health. The current study also extends attachment theory in an important new direction by demonstrating the utility of a psychoneuroimmunological approach to the study of attachment anxiety, stress, and health.

Passionate love and relationship thinkers: Experimental evidence for acute cortisol elevations in women

We assessed the impact of an individual difference variable, relationship-focused thinking, on womens acute salivary cortisol responses during and after a guided imagery task. Specifically, 29 healthy women, all of whom were experiencing high levels of passionate love, but varied on levels of relationship-focused thinking, were assigned to one of two experimental conditions: a partner reflection condition or a cross-sex friend reflection condition. Results indicated that women experiencing passionate love evidenced increased cortisol levels when asked to reflect on their romantic partner and relationship relative to women asked to reflect on a cross-sex friendship, but this difference was particularly pronounced and relatively long-lasting for those women characterized by a high amount of relationship-focused thinking. Our study significantly expands extant work on the passionate love-cortisol link by isolating the impact of a specific psychological variable, relationship-focused thinking, on the physiological experience of falling in love. We believe our work highlights the advances that can be made when established work in the close relationships and neuroendocrine fields are integrated.

What's closeness got to do with it? Men's and women's cortisol responses when providing and receiving support.

Objective: To examine the effects of social support role (i.e., recipient versus provider) and experimentally manipulated closeness on men’s and women’s cortisol responses during an acute stress paradigm. Methods: We manipulated psychological closeness (high versus low) between 50 same-sex stranger pairs and subsequently randomly assigned individuals to either prepare a speech (i.e., support recipient) or provide support to the speech presenter (i.e., support provider). Results: When receiving support, cortisol responses of men in the high closeness condition increased over time relative to a) men in the low closeness condition and b) women in the high closeness condition. Cortisol responses of female support recipients did not differ as a function of condition. For support providers, whereas both men’s and women’s cortisol declined throughout the procedure, the decline for men was steeper than the decline for women. Conclusions: With few exceptions, psychological closeness, sex, and social support role interacted in theoretically consistent ways and each significantly contributed to the pattern of cortisol responses observed in men and women during a standardized acute stress paradigm. This work expands the growing literature on potential mechanisms underlying the social support-health link. Further, the employed methodology highlights the utility of borrowing established paradigms from the close relationships literature to help illuminate specific interpersonal characteristics that might affect social support dynamics in naturally existing relationships and at the same time control for extraneous variables. Cond = condition; dL = deciliter; M = mean; SD = standard deviation; TSST = Trier Social Stress Test.

Plasma vasopressin and interpersonal functioning

The neuropeptide vasopressin has traditionally been associated with vasoconstriction and water reabsorption by the kidneys. However, data from experimental animal studies also implicate vasopressin in social bonding processes. Preliminary work suggests that vasopressin also plays a role in social behaviors in humans. The goal of this cross-sectional study was to evaluate associations among plasma vasopressin and self-reported interpersonal functioning in a sample of married couples. During a 24-h admission to a hospital-based research unit, 37 couples completed measures of interpersonal functioning and provided blood samples for neuropeptide analyses. Results showed that vasopressin was associated with markers of interpersonal functioning, but not with general psychological distress. Specifically, greater plasma vasopressin levels were related to a larger social network, fewer negative marital interactions, less attachment avoidance, more attachment security, and marginally greater spousal social support. These results indicate that vasopressin is likely implicated in different relationship maintenance processes in humans.

Missing you maintains us: Missing a romantic partner, commitment, relationship maintenance, and physical infidelity

Working from the perspective of interdependence theory and models of relationship maintenance, this study examined the functional role of missing a romantic partner during a brief geographic separation. Eighty-eight undergraduate students involved in romantic relationships completed a measure of commitment prior to separation, and measures of missing a romantic partner, relationship maintenance, and physical infidelity during their winter break. Commitment was associated with participants’ self-reports of missing their romantic partners. Further, commitment predicted participants’ use of relationship maintenance strategies (i.e., positivity, openness, and assurances) and physical infidelity during the separation. These associations were mediated by how much participants missed their romantic partners. Findings are discussed in terms of interdependence theory and the growing literature on geographic distance between relationship partners.

Does Sex Really Matter? Examining the Connections Between Spouses' Nonsexual Behaviors, Sexual Frequency, Sexual Satisfaction, and Marital Satisfaction.

We examined the interplay between husbands’ and wives’ positive and negative nonsexual interpersonal behaviors, frequency of sexual intercourse, sexual satisfaction, and feelings of marital satisfaction. To do this, we conducted an in-depth face-to-face interview and completed a series of telephone diaries with 105 couples during their second, third, and fourteenth years of marriage. Consistent with the argument that women’s sexual response is tied to intimacy (Basson, 2000), multilevel analyses revealed that husbands’ positive interpersonal behaviors directed toward their wives—but not wives’ positivity nor spouses’ negative behaviors (regardless of gender)—predicted the frequency with which couples engaged in intercourse. The frequency of sexual intercourse and interpersonal negativity predicted both husbands’ and wives’ sexual satisfaction; wives’ positive behaviors were also tied to husbands’ sexual satisfaction. When spouses’ interpersonal behaviors, frequency of sexual intercourse, and sexual satisfaction were considered in tandem, all but the frequency of sexual intercourse were associated with marital satisfaction. When it comes to feelings of marital satisfaction, therefore, a satisfying sex life and a warm interpersonal climate appear to matter more than does a greater frequency of sexual intercourse. Collectively, these findings shed much-needed light on the interplay between the nonsexual interpersonal climate of marriage and spouses’ sexual relationships.

Energized by love: Thinking about romantic relationships increases positive affect and blood glucose levels

We assessed the impact of thinking of a current romantic partner on acute blood glucose responses and positive affect over a short period of time. Participants in romantic relationships were randomly assigned to reflect on their partner, an opposite-sex friend, or their morning routine. Blood glucose levels were assessed prior to reflection, as well as at 10 and 25 min postreflection. Results revealed that individuals in the routine and friend conditions exhibited a decline in glucose over time, whereas individuals in the partner condition did not exhibit this decline (rather, a slight increase) in glucose over time. Reported positive affect following reflection was positively associated with increases in glucose, but only for individuals who reflected on their partner, suggesting this physiological response reflects eustress. These findings add to the literature on eustress in relationships and have implications for relationship processes.

Interdisciplinary research on close relationships : the case for integration

Given the importance of close relationships in all facets of human life, it is no surprise that research on relationship processes is multidisciplinary and divergent in methodology. Such diversity in the study of close relationships should allow for a more detailed and comprehensive understanding of relationship processes, but researchers in different fields have yet to integrate their findings into a deeper, more holistic model of close relationship functioning. This book brings together different perspectives on close relationships to explore how such relationships develop, function, and interact across a variety of contexts. Prominent scholars contribute theory and empirical research rooted in developmental, social, and cross-cultural psychology, as well as evolutionary science, individual differences, and psychophysiology. Both early and adult relationships are examined, along with parent-child relationships. This excellent resource will be well received by researchers and students in the social sciences who are interested in a broader, more collaborative approach to relationship science.