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Profile image of Hirofumi Morishita

    Hirofumi Morishita, MD, PhD

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    Another current line of research aims to examine the mechanisms prefrontal social circuit maturation. Social behavior is commonly dysregulated in neurodevelopmental disorders, yet little is known about the mechanisms governing social behavior development. Studies in humans and animals demonstrate that the prefrontal cortex is important in regulating social cognition (see our recent review Front Psychology 2015). The goal of this line of research is to identify molecular and circuit mechanisms in prefrontal cortex regulating juvenile critical period for experience-dependent development of social behavior. By combining intersectional approaches of behavior, cell-type-specific manipulation of neural activity and gene expression, our recent studies identified the role of specific excitatory and inhibitory cell-types in social behavior development (Nature Neuroscience 2020, Nature Communications 2020). Identification of a critical period and underlying mechanisms for social circuits and behavior would eventually improve diagnosis, prevention and treatment of psychiatric disorders. Currently supported by NIMH R01, One Mind, and Simons Foundation.