Objective: A large literature now shows that Alzheimer’s disease (AD) disrupts a number of social cognitive abilities, including social perceptual function and theory of mind (ToM). However, less well understood is how the specific subcomponents of ToM as well as both the broader and specific subcomponents of empathic processing are affected. Method: The current study provides the first meta-analytic review of AD that focuses on both empathy and ToM as broad constructs, as well as their overlapping (cognitive empathy and affective ToM) and distinct (affective empathy and cognitive ToM) subcomponents. Results: Aggregated across 31 studies, the results revealed that, relative to controls, AD is associated with large-sized deficits in both cognitive ToM (g = 1.09) and affective ToM/cognitive empathy (g = 0.76). However, no statistical differences were found between the AD participants and controls on affective empathic abilities (g = 0.36). Conclusions: These data point to a potentially important disconnect between core aspects of social cognitive processing in people with AD. The practical and theoretical implications of these findings are discussed.

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It is well established that poor sleep directly increases stress and aggression, but potential mediators of this relationship remain poorly understood. The present study provided the first direct test of whether capacity for emotion regulation mediated the relationship between sleep with stress. It also aimed to extend current understanding of whether emotion regulation might mediate the association between sleep and aggression, by assessing four distinct subcomponents of aggression (anger, hostility, verbal aggression, and physical aggression). In service of these goals, 740 participants completed validated measures of sleep, stress, aggression, and emotion regulation. Results showed that emotion regulation partially mediated the relationship between sleep quality with stress, anger, hostility, and verbal aggression, and fully mediated the relationship between sleep with physical aggression. These data provide novel evidence that emotion regulation abilities may serve as a protective factor against the negative consequences of sleep disturbances.

Social frailty refers to an inability to meet basic social needs and has been identified as a threat to physical and mental health. Although social frailty has been linked with many adverse health and well-being outcomes, potential mediators of the relationship between social frailty and well-being remain poorly understood. Emotion regulation refers to the capacity to alter the experience of emotions to behave in accordance with a desired goal. The present study was designed to provide the first direct test of whether emotion regulation mediates the relationships between social frailty and important well-being outcomes (stress, anxiety, and depression). A total of 790 participants completed validated measures of social frailty, stress, anxiety, depression, and emotion regulation. In line with our preregistered hypotheses, higher social frailty predicted increased stress, anxiety, and depression, and each of these relationships were partially mediated by emotion regulation capacity. These data provide novel evidence that emotion regulation abilities may serve as a protective factor against the negative consequences of social frailty.