Lecture | Jennifer Groh | Hearing in a World of Light: Computations for Communicating Across the Senses

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By Center for Mind, Brain, and Culture, Emory College, Emory Center for Mind, and Culture (CMBC). Discovered by Player FM and our community — copyright is owned by the publisher, not Player FM, and audio is streamed directly from their servers. Hit the Subscribe button to track updates in Player FM, or paste the feed URL into other podcast apps.

No sensory system is an island. The auditory and visual systems work together to provide information about the nature of the events occurring in the environment. I will talk about why they do this, where in the brain it happens, and how the brain performs the necessary computations to achieve it. I will emphasize the following general insights: 1. Interactions between sensory systems occur at the earliest possible point in the auditory pathway, namely, the eardrum. 2. The brain may employ a strategy akin to time-division multiplexing, in which neural activity fluctuates across time, to allow representations to represent more than one simultaneous stimulus. These findings speak to several general problems confronting modern neuroscience such as the hierarchical organization of brain pathways and limits on perceptual/cognitive processing.

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