College of Behavioral & Social Sciences
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Item fMRI Meta-Analysis of Social Interaction via Joint Attention Paradigms(2022-04-27) Edakoth, Esha; Glaros, Sophia; Harris, Riley; McGovern, Chelsea; Merchant, Junaid S; Tchangalova, Nedelina; Redcay, ElizabethJoint Attention (JA) is the sharing of attention on a common object or event by two or more people. JA is an important precursor to the development of social cognitive skills needed for more sophisticated forms of social interaction. The brain regions involved in JA during social interactive contexts are not well known because original studies of JA used tasks that are not interactive, such as engaging with the eye gaze of a static image outside of a social interactive context. Recent studies have used fMRI to understand the different brain regions associated with JA in interactive contexts, but there are inconsistent findings across studies. Therefore, this study uses meta-analytic methods to aggregate findings across JA studies using social interactive approaches to identify brain regions that are commonly activated.Item The Effect of Social Interaction on the Neural Correlates of Language Processing and Mentalizing(2014) Rice, Katherine Ann; Redcay, Elizabeth; Psychology; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)Recent behavioral and neuroscience evidence suggests that studying the social brain in detached and offline contexts (e.g., listening to prerecorded stories about characters) may not capture real-world social processes. Few studies, however, have directly compared neural activation during live interaction to conventional recorded paradigms. The current study used a novel fMRI paradigm to investigate whether real-time social interaction modulates the neural correlates of language processing and mentalizing. Regions associated with social engagement (i.e., dorsal medial prefrontal cortex) were more active during live interaction. Processing live versus recorded language increased activation in regions associated with narrative processing and mentalizing (i.e., temporal parietal junction). Regions associated with intentionality understanding (i.e., posterior superior temporal sulcus) were more active when mentalizing about a live partner. These results have implications for quantifying and understanding the neural correlates of real-world social behavior in typical adults, in developmental populations, and in individuals with social disabilities such as autism.