Experiencing pleasure and displeasure is a fundamental part of life. Hedonics guide behavior, affect decision-making, induce learning, and much more. As the positive and negative valence of feelings, hedonics are core processes that accompany emotion, motivation, and bodily states. Here, the affective neuroscience of pleasure and displeasure that has largely focused on the investigation of reward and pain processing, is reviewed. We describe the neurobiological systems of hedonics and factors that modulate hedonic experiences (e.g., cognition, learning, sensory input). Further, we review maladaptive and adaptive pleasure and displeasure functions in mental disorders and well-being, as well as the experience of aesthetics. As a centerpiece of the Human Affectome Project, language used to express pleasure and displeasure was also analyzed, and showed that most of these analyzed words overlap with expressions of emotions, actions, and bodily states. Our review shows that hedonics are typically investigated as processes that accompany other functions, but the mechanisms of hedonics (as core processes) have not been fully elucidated.

Mindfulness practices improve cognition, emotional balance, and well-being in clinical and non-clinical populations. The bulk of mindfulness research in higher education has focused on improving psychological and cognitive variables, leaving academic performance largely unexplored. We investigated the effects of a brief mindfulness intervention on quiz performance in two sections of an undergraduate upper-level human development class (N ¼ 67). We used a between-group experimental design (waiting control group) and compared student quiz scores. Students assigned to practice mindfulness performed better on the first two quizzes than the control group. When the control group received the mindfulness intervention, there was no significant difference on quiz performance between the two groups. Mindfulness training did not impact state mindfulness or exam scores. Taken together, our results suggest that small doses of mindfulness training can briefly enhance students' knowledge retention of lecture content.

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The COVID-19 pandemic has disrupted the lives of many high school and college students, and recent studies indicate increased emotional distress in this age group. We examined associations among 10 pandemic-related concerns, 21 affects, and three self-regulatory skills using cross-sectional online survey data from high school and college students in two regions of the United States (Study 1: N = 392 and Study 2: N = 1,200). Network models of regularized partial correlation networks revealed both equifinal and multifinal pathways between specific COVID-19 concerns and positive and negative affects. In both studies, concern about conflict with parents was the pandemic-related concern most strongly connected to negative affects, mindfulness was most strongly connected to pandemic-related concerns and negative affects, and self-compassion was most strongly connected to positive affects. These findings provide greater insight into risk and resilience factors associated with students’ emotional well-being during the first year of the COVID-19 pandemic.

Children from low socioeconomic status (SES) backgrounds are at particularly heightened risk for developing later externalizing problems. A large body of research has suggested an important role for self-regulation in this developmental linkage. Selfregulation has been conceptualized as a mediator as well as a moderator of these connections. Using data from the Child Development Project (CDP, N = 585), we probe these contrasting (mediating/moderating) conceptualizations, using both Frequentist and Bayesian statistical approaches, in the linkage between early SES and later externalizing problems in a multi-decade longitudinal study. Connecting early SES, physiology (i.e., heart rate reactivity) and inhibitory control (a Stroop task) in adolescence, and externalizing symptomatology in early adulthood, we found the relation between SES and externalizing problems was moderated by multiple facets of self-regulation. Participants from lower early SES backgrounds, who also had high heart rate reactivity and lower inhibitory control, had elevated levels of externalizing problems in adulthood relative to those with low heart rate reactivity and better inhibitory control. Such patterns persisted after controlling for externalizing problems earlier in life. The present results may aid in understanding the combinations of factors that contribute to the development of externalizing psychopathology in economically marginalized youth.