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Boston MA (SPX) Aug 24, 2023 - To understand the full relationship between brain activity and behavior, scientists have needed a way to map this relationship for all of the neurons across a whole brain - a so far insurmountable c
An MIT team has produced an atlas of how most cells, and the circuits they take part in, encode a worm's actions. The atlas reveals the underlying “logic” of how an animal brain produces a sophisticated and flexible repertoire of behaviors, even as its environmental circumstances change.
To understand the full relationship between brain activity and behavior, scientists have needed a way to map this relationship for all of the neurons across a whole brain-;a so far insurmountable challenge.
An MIT study shows how stimuli and states such as smells, stressors, and satiety converge in an olfactory neuron to guide food-seeking behavior in worms.
Using what may be a fundamental circuit architecture in animal brains, worms decide whether to roam around looking for food or stop in a patch of nutrients. The circuit feeds multiple streams of sensory information into a mutually inhibiting loop of just a few neurons to switch between the roaming or dwelling behaviors.