Intensity scales for pure tastes and for taste mixtures

In four series of studies, taste intensities of sour, bitter, sweet, and salt were measured by number matching (magnitude estimation), and by noise matching. The two procedures agreed in their estimates of the power-function exponent for each taste. Representative exponents obtained from the studies are 1.0 to 1.1 for sour and bitter and 1.3 to 1.5 for sweet and salt. In a second set of studies each taste was judged against three or more background levels of a second taste. The results suggest that the power-function exponent is unaffected when a second taste is present in the solution. Whether the intercept changes in taste mixtures was not determined in these experiments.     

Resilience to loss in bereaved spouses, bereaved parents, and bereaved gay men

Recent research has indicated that many people faced with highly aversive events suffer only minor, transient disruptions in functioning and retain a capacity for positive affect and experiences. This article reports 2 studies that replicate and extend these findings among bereaved parents, spouses, and caregivers of a chronically ill life partner using a range of self-report and objective measures of adjustment. Resilience was evidenced in half of each bereaved sample when compared with matched, nonbereaved counterparts and 36% of the caregiver sample in a more conservative, repeated-measures ipsative comparison. Resilient individuals were not distinguished by the quality of their relationship with spouse/partner or caregiver burden but were rated more positively and as better adjusted by close friends.     

Social hierarchy and depression: the role of emotion suppression

Position in the social hierarchy is a major determinant of health outcomes. We examined the associations between aspects of social hierarchy and depressive symptoms with a specific focus on one potential psychological mechanism: emotion suppression. Suppressing negative emotion has mental health costs, but individuals with low social power and low social status may use these strategies to avoid conflict. Study 1 assessed perceived social power, tendency to suppress negative emotion, and depressive symptoms in a community sample of women. Low social power was related to greater depressive symptoms, and this relationship was partially mediated by emotion suppression. Study 2 examined education as a proxy for social hierarchy position, anger suppression, and depressive symptoms in a national, longitudinal cohort study (The coronary artery risk development in young adults [CARDIA] study; Cutter et al., 1991). Much as in study 1, low education levels were correlated with greater depressive symptoms, and this relationship was partially mediated by anger suppression. Further, suppression mediated the relationship between low education and subsequent depression up to 15 years later. These findings support the theory that social hierarchy affects mental health in part through a process of emotion suppression.     

Positive Affect in the Midst of Distress: Implications for Role Functioning

Stress has been shown to deplete the self‐regulation resources hypothesized to facilitate effective role functioning. However, recent research suggests that positive affect may help to replenish these vital self‐regulation resources. Based on the revised Stress and Coping theory and the Broaden‐and‐Build theory of positive emotion, three studies provide evidence of the potential adaptive function of positive affect in the performance of roles for participants experiencing stress. Participants were students (Study 1), caregivers of children with illness (Study 2), and individuals recently diagnosed with HIV (Study 3). In cross‐sectional analyses, using role functioning as an indicator of self‐regulation performance, we found that positive affect was significantly correlated with better self‐regulation performance, independent of the effects of negative affect. The effects were not as strong longitudinally, however, and there was little evidence of a reciprocal association between increases in positive affect and improvements in role functioning over time. The results provide some modest support for hypotheses stemming from the Broaden‐and‐Build model of positive emotion and revised Stress and Coping theory, both of which argue for unique adaptive functions of positive affect under stressful conditions. Copyright © 2012 John Wiley & Sons, Ltd.     

Coping with HIV as a chronic illness: A longitudinal analysis of illness appraisals

Illness appraisals are central to understanding how individuals cope with chronic illness. An interpretive phenomenological approach to the analysis of two years of bimonthly stressful event narratives in a sample of 57 HIV?+?gay men revealed five groups that differed on how they appraised HIV and one group of individuals who changed from one type of appraisal to another over the course of the 2-year study. The ways of appraising HIV revealed in this analysis have implications for interventions and for the study of coping with HIV as a chronic illness. The repeated assessment of specific HIV-associated stressful events and a qualitative analytic approach allowed for a more in-depth understanding of the meaning of HIV for the participants. This study suggests that coping interventions may be more powerful if they are tailored to individual appraisals of HIV because different forms of coping are likely to be differentially effective depending on the meaning of HIV in the individual's life.     

Quality Vs. Quantity: Assessing Behavior Change over Time

Beyond the typical design factors that impact a study’s power (e.g., participant sample size), planning longitudinal research involves additional considerations such as assessment frequency and participant retention. Because this type of research relies so strongly on individual commitment, investigators must be judicious in determining how much information is necessary to study the phenomena in question; collecting too little information will render the data less useful, but requiring excessive participant investment will likely lower participation rates. We conducted a simulation study to empirically examine statistical power and the trade-off between assessment quality (as a function of instrument length) and assessment frequency across a number of sample sizes with intermittently missing data or attrition. Results indicated that reductions in power resulting from shorter, less reliable measurements can be at least somewhat offset by increasing assessment frequency. Because study planning involves a number of factors competing for finite resources, equations were derived to find the balance points between pairs of design characteristics affecting statistical power. These equations allow researchers to calculate the amount that a particular design factor (e.g., assessment frequency) would need to increase to result in the same improvement in power as increasing an alternative factor (e.g., measurement reliability. Applications for the equations are discussed.     

Attachment-related affective dynamics: differential reactivity to others' interpersonal behavior

We examined the influences of attachment orientations on within-person changes in affect as a function of perceptions of the interaction partner's agreeable behavior in interactions involving a romantic partner and other kinds of partners. Working adults reported affect, perceptions of the other person's behavior, and the relationship with the other in interpersonal events during 20 days. As expected, the within-person association between perceived partner's agreeable behavior and negative affect was stronger for individuals higher on attachment anxiety and was weaker for individuals higher on attachment avoidance. These effects were more pronounced in interactions with a romantic partner than with other persons. Findings demonstrate that attachment orientations are associated with differing within-person processes and that these processes are sensitive to kind of interaction partner.