Overview
Our broad research goal is to understand the neural mechanisms by which experience guides learning, behavior, and perception. Our group explores the structure and function of sensorimotor circuits important to learned vocal communication in the songbird and to auditory-motor integration in the mouse. In the course of these explorations, my research group has developed a wide range of technical expertise in both avian and mouse models, including in vivo multiphoton neuronal imaging, chronic recording of neural activity in freely behaving animals, in vivo and in vitro intracellular recordings from identified neurons, and manipulation of neuronal activity using electrical, chemical and optogenetic methods. Our group also has extensive experience with viral transgenic methods to manipulate gene expression, including genes implicated in human neurological disorders. Together, these methods provide a broad technical approach to identify the neural circuit mechanisms important to vocal learning, auditory perception and communication.
Current Appointments & Affiliations
Professor of Neurobiology
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2008 - Present
Neurobiology,
Basic Science Departments
Director of the T32 Neurobiology Training Program
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2019 - Present
Neurobiology,
Basic Science Departments
Professor of Cell Biology
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2022 - Present
Cell Biology,
Basic Science Departments
Faculty Network Member of the Duke Institute for Brain Sciences
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2008 - Present
Duke Institute for Brain Sciences,
University Institutes and Centers
Recent Publications
Dual neuromodulatory dynamics underlie birdsong learning.
Journal Article Nature · March 12, 2025 Although learning in response to extrinsic reinforcement is theorized to be driven by dopamine signals that encode the difference between expected and experienced rewards1,2, skills that enable verbal or musical expression can be learned without extrinsic ... Full text Link to item CiteVocalization modulates the mouse auditory cortex even in the absence of hearing.
Journal Article Cell Rep · August 27, 2024 Vocal communication depends on distinguishing self-generated vocalizations from other sounds. Vocal motor corollary discharge (CD) signals are thought to support this ability by adaptively suppressing auditory cortical responses to auditory feedback. One c ... Full text Link to item CiteNested circuits mediate the decision to vocalize.
Journal Article Elife · June 14, 2023 Vocalizations facilitate mating and social affiliation but may also inadvertently alert predators and rivals. Consequently, the decision to vocalize depends on brain circuits that can weigh and compare these potential benefits and risks. Male mice produce ... Full text Link to item CiteRecent Grants
Neurobiology Training Program
Inst. Training Prgm or CMEPrincipal Investigator · Awarded by National Institutes of Health · 2024 - 2029Dissecting cholinergic modulation of interneurons underlying state-dependent processing in mouse visual cortex
FellowshipCo-Sponsor · Awarded by National Eye Institute · 2023 - 2026Beyond dopamine: dual neuromodulator regulation of motor variability and learning
FellowshipPrincipal Investigator · Awarded by National Institute of Mental Health · 2023 - 2026View All Grants