The role of corticogeniculate feedback in visual perception

March 16, 2021 - 12:00pm to 1:00pm
Farran Briggs, hosted by Shiva Nagappan
Farran Briggs headshot

Duke Neurobiology welcomes Farran Briggs, PhD, Associate Professor of Neuroscience at the University of Rochester Medical Center. For connection info to her Zoom seminar "The role of corticogeniculate feedback in visual perception", email
Partial abstract: Although much is known about transformations in visual information that occur in feedforward circuits connecting the retina to the visual thalamus (the dorsal lateral geniculate nucleus or LGN) to the primary visual cortex (V1), relatively little is known about the functional contributions of the first feedback circuits in the visual system, corticogeniculate circuits. Corticogeniculate neurons provide an anatomically robust, but physiologically weak or modulatory input onto relay neurons in the LGN. In spite of decades of study, the function of corticogeniculate feedback in visual perception has remained a stubborn puzzle. Our goal is to resolve this puzzle using methods to selectively and reversibly manipulate corticogeniculate neurons in highly visual animal models.