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Turtles all the way up: sensory-topographic organization throughout the human brain| title | Turtles all the way up: sensory-topographic organization throughout the human brain |
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| start_date | 2023/04/24 |
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| schedule | 11h |
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| online | no |
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| location_info | amphithéâtre & zoom |
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| summary | A fundamental mode of brain organization is that of topographic maps: the homologous representation of a sensor array, such as the retina, on the surface of the cerebral cortex. This topographic organization was traditionally thought to be limited to low-level sensory processing. In the first half of my presentation I will recount recent work from my lab demonstrating that sensory-topographic hierarchies extend all the way into the highest levels of the brain’s processing. Specifically, using ultra-high field fMRI we have discovered sensory retinotopic maps in the cerebellum, default mode network, and hippocampus: regions traditionally implicated in coordination of action, memory, and high-level cognition. These discoveries make sense when we realize that these topographic maps are our sole connections to the world we inhabit, but they leave open the question: What role do these maps and their interactions play in our rich experience of the world? In the second half of my presentation, I will introduce a set of computational modeling and functional connectivity findings that elucidate how sensory topographies interact to give rise to our rich experiences of naturalistic visual movies. |
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| responsibles | Blancho |
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Workflow history| from state (1) | to state | comment | date |
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| submitted | published | | 2023/04/19 12:13 UTC |
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