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ABOUT THE FENELON LAB

Our brain is constantly exposed to a myriad of sensory information coming from the ears, eyes, nose, mouth, skin, muscles, joints and internal organs. To avoid brain overload, a pre-attentive neuronal filtering mechanism allows only the most salient information to be processed. Our research program focuses on better understanding the neural elements and circuits underlying sensory information filtering.

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We are particularly interested in how the caudal pontine reticular nucleus (PnC), brainstem structure at the core of the filtering circuitry, is activated. To do so, we use anatomical, immunohistochemical, electrophysiological, genetic, and behavioral techniques/approaches in rodents, including disease models. Our overall goal is to provide a better understanding of the physiological dysfunction in patients suffering from sensory information filtering and identify potential targets for therapeutic interventions.

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BRAIN SLICE ELECTROPHYSIOLOGY

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PnC GlyT2-mCherry x60 3D reconstruction

TRACT TRACING

3D reconstruction

Amygdala fibers (magenta) closely apposed to brainstem glycinergic neurons (green)

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IN VIVO OPTOGENETICS

Prepulse inhibition setup

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