No abstract

Emodiversity, or the variety and relative abundance of emotions experienced, provides a metric that can be used to understand emotional experience and its relation to well-being above and beyond average levels of positive and negative affect. Past research has found that more diverse emotional experiences, both positive and negative, are related to better mental and physical health outcomes. The present research aimed to test the relationship between positive and negative emodiversity across the span of 8 days with measures of health and well-being using 2 samples of the Midlife in the United States study (http://midus.wisc.edu/). Participants (N ϭ 2,788) reported emotional states (14 negative, 13 positive) once each day for 8 days. Emodiversity scores were computed for each day using an adaptation of Shannon's biodiversity index and averaged across the days. All models included average affect and demographic covariates. Greater positive emodiversity was associated with fewer symptoms of depression and anxiety and fewer physical health symptoms but was not related to eudaimonic well-being nor cognitive functioning. In contrast to previous research, greater negative emodiversity was related to more symptoms of depression and anxiety and more physical health symptoms. Greater negative emodiversity was only associated with one positive outcome: better executive functioning. These findings illustrate inconsistencies across studies in whether negative emodiversity is associated with better or worse outcomes and raise further questions about how the construct of emodiversity can be better refined.

Objectives Studies demonstrate the association between diverse emotions and health. However, we know little about how these emotions are related to activities in daily life. This study examined whether the diversity of daily activities (“activity diversity”) is associated with the diversity of both positive and negative daily emotions (“emodiversity”) in adulthood. We also examined if these associations differed by age. Methods Two separate samples of participants from the Midlife in the United States Study II (M2: 2004-2009, n=2,012, Mage=56yrs) and Refresher (MR: 2012-2016, n=779, Mage=47yrs) provided activity and emotion data for eight consecutive days. Using Shannon’s entropy, we constructed activity diversity and emodiversity (positive, negative) scores. Analyses adjusted for sociodemographic and health characteristics, total activity time, mean positive/negative emotions, and number of days with positive/negative emotion data. Results Greater activity diversity was associated with greater positive emodiversity and greater negative emodiversity in both samples. In the M2 sample, the association between activity diversity and positive emodiversity was stronger among relatively younger adults, such the positive association among those aged 33-44 years was greater than that observed among those aged 68-84 years. Results held after adjusting for time spent in each of the activities or when using different emodiversity metrics (Gini or Simpson coefficients). Discussion Broad and even participation of daily activities may provide more opportunities to experience rich and balanced emotions. Findings suggest that the association between activity diversity and emodiversity exists across adulthood, underscoring the value of including information about daily activities when examining emotional experiences across the lifespan.

The COVID-19 pandemic dramatically changed the structure of our daily lives. One of the most significant changes is a limited opportunity to engage in face-to-face social interactions and enjoy diverse daily activities. This raises a public health concern, because diverse experiences are critical sources of health by increasing social integration, cognitive reserve, and psychological resources. Recently, two lines of research have consistently shown that activity diversity or emodiversity is associated with multiple health outcomes. However, still more integrated efforts are needed to better understand diversity of daily experiences in various aspects and their contributions to health. This symposium brings together different endeavors towards understanding how diversity of daily experiences – activity diversity, emodiversity, and variety in positive experiences – are associated with health and well-being across adulthood. The topic of this symposium is timely to discuss potential prevention approaches to protect population well-being as the pandemic evolves. Paper 1 examines activity diversity (breadth and evenness of daily activity participation) and how it is related to positive and negative emodiversity (rich and balanced emotional experiences) differently by age groups. Paper 2 investigates the longitudinal relationship between activity variety across cognitive, physical, and social domains and cognitive functioning. Paper 3 examines variety in pleasant events and its associations with mental health outcomes. Paper 4 examines whether and how negative emodiversity is associated with mental illness during COVID-19. The discussant, Dr. David Almeida will integrate key findings from these studies, discuss their theoretical and methodological contributions, and consider opportunities for future research.

Studies comparing the effects of positive and negative affect on psychological outcomes are limited by differences in the situations that evoke these states and in the resulting levels of arousal. In the present research, we adapted the speech portion of the Trier Social Stress Test (TSST) to create conditions with similar situational features that induce either positive, negative, or neutral affective states (N = 301). Pre-post emotion ratings showed that negative affect increased in the negative condition but decreased in the positive and neutral conditions. Positive affect increased in the positive condition, remained unchanged in the neutral condition, and decreased in the negative condition. Participants' post-speech ratings of their positive and negative emotions differed significantly between the positive and negative conditions, which has not been accomplished in previous attempts to create a non-stressful positive TSST. Importantly, participants in the positive and negative conditions did not differ in self-reported levels of arousal and showed similar changes in mean arterial pressure across the speech period, although heart rate was relatively higher during the speech for participants in the negative compared to positive and neutral conditions. Findings demonstrate the effectiveness of a modified TSST for inducing positive affect with similar levels of emotional arousal to the traditional negative TSST.