We study chemical excitation and inhibition by neurotransmitters in the central nervous system. Chemical transmission requires a fine balance as over-excitation or over-inhibition is detrimental to function and survival of neurons. In one project, we are studying the role of astrocytes in supporting the development and maintenance of chemical transmission. One branch of this project is studying the role of astrocytes in neuroenergetics. Another major emphasis is a collaborative effort to understand the mechanisms by which endogenous neuroactive steroids directly modulate GABA and glutamate receptor function. A final project uses a foreign dopamine-gated ion channel to interrogate and control dopamine transmission. For our studies we use electrophysiological, molecular, chemical biology and imaging techniques applied to neurons in culture, to brain slices, and to animals.

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