C. elegans sensing of and entrainment along obstacles require different neurons at different body locations.

Abstract excerpt

We probe C. elegans mechanosensation using a microfabricated platform where worms encounter a linear array of asymmetric funnel-like barriers. We found that sensing of and moving along barriers require different sets of neurons located at different parts of the animal. Wild-type worms sense and move along the barrier walls, leading to their accumulation in one side of the barriers due to the barriers' asymmetric...

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