Background: A unique feature of the global coronavirus pandemic has been the widespread adoption of mask-wearing as a public health measure to minimize the risk of contagion. Little is known about the effects of increased mask-wearing on social interactions, social anxiety, or overall mental health. Objectives: Explore the potential effects of mask-wearing on social anxiety. Design: We review existing literatures to highlight three preselected sets of factors that may be important in shaping the effects of mask-wearing on social anxiety. These are: (a) people's perceptions of the social norms associated with wearing masks; (b) people's experiences of the degree to which masks prevent accurate interpretation of social and emotional cues; and (c) people's use of masks as a type of safety behavior that enables self-concealment. Methods: APA PsycNet and PubMed were searched principally between September and November 2020 for articles describing the relationship between social anxiety, intolerance of uncertainty, ambiguous feedback, and safety behavior use and for research on the relationship between mask-wearing and social norms and social interactions. Information identified as relevant from articles of interest was extracted and included in our review.Results & Conclusions: The effects of mask-wearing on social anxiety are likely to be substantial and clinically relevant.

Over the last 2 decades, we have begun to gain traction on the neural systems that support creative cognition. Specifically, a converging body of evidence from various domains has demonstrated that creativity arises from the interaction of two large-scale systems in the brain: Whereas the default network (DN) is involved in internally-oriented generation of novel concepts, the executive control network (ECN) exerts top-down control over that generative process to select task-appropriate output. In addition, the salience network (SN) regulates switching between those networks in the course of creative cognition. In contrast, we know much less about the workings of these large-scale systems in support of creativity under extreme conditions, although that is beginning to change. Specifically, there is growing evidence from systems neuroscience to demonstrate that the functioning and connectivity of DN, ECN, and SN are influenced by stress -findings that can be used to improve our understanding of the behavioral effects of stress on creativity. Toward that end, we review findings from the neuroscience of creativity, behavioral research on the impact of stress on creativity, and the systems-level view of the brain under stress to suggest ways in which creativity might be affected under extreme conditions. Although our focus is largely on acute stress, we also touch on the possible impact of chronic stress on creative cognition.

Working memory (WM) is the system responsible for maintaining and manipulating information, in the face of ongoing distraction. In turn, WM span is perceived to be an individual-differences construct reflecting the limited capacity of this system. Recently, however, there has been some evidence to suggest that WM capacity can increase through training, raising the possibility that training can functionally alter the neural structures supporting WM. To address the hypothesis that the neural substrates underlying WM are targeted by training, we conducted a meta-analysis of functional magnetic resonance imaging (fMRI) studies of WM training using Activation Likelihood Estimation (ALE). Our results demonstrate that WM training is associated exclusively with decreases in blood oxygenation level-dependent (BOLD) responses in clusters within the fronto-parietal system that underlie WM, including the bilateral inferior parietal lobule (BA 39/40), middle (BA 9) and superior (BA 6) frontal gyri, and medial frontal gyrus bordering on the cingulate gyrus (BA 8/32). We discuss the various psychological and physiological mechanisms that could be responsible for the observed reductions in the BOLD signal in relation to WM training, and consider their implications for the construct of WM span as a limited resource.