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In the brain, information processing occurs at synapses, and defects in synapse development underlie many neurological and psychiatric diseases; thus, precise organization of synapses is critical for optimal functioning of the brain. We are therefore interested in the mechanisms by which specific and functional synaptic circuits are established in the mammalian brain, and are applying our findings to the prevention and treatment of neurological/psychiatric disorders. We use molecular & cellular biological, mouse genetics, biochemical, histological, physiological, behavioral, optogenetic, and imaging techniques.

Research InterestsThrough our work, we aim to understand the principle of mammalian brain wiring and how the functional brain is built. Specifically, we identify the manner and molecular cues critical for proper synaptic circuits development, focusing on two important steps: 1) Development of specific synaptic connections (e.g., excitatory vs. inhibitory vs. modulatory synapses; specific synaptic circuits that regulate distinct behaviors) and 2) Activity-dependent refinement of functional synapses (i.e., stabilization of active synapses and elimination of inactive synapses). Screen Shot 2018-08-31 at 7.37.16 PMWe establish in vitro and in vivo systems to investigate these steps, analyze the underlying mechanisms, and identify critical determinants for the establishment of appropriate synaptic circuits in the mammalian brain. Our projects will molecularly delineate how specific and functional synaptic connections are established in vivo to understand the process of fundamental wiring of the brain. The knowledge obtained will be applied to the prevention or treatment of neurological and psychiatric disorders associated with abnormal synapse development, such as autism, schizophrenia, and epilepsy.

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