Journal
CURRENT OPINION IN NEUROBIOLOGY
Volume 64, Issue -, Pages 60-69Publisher
CURRENT BIOLOGY LTD
DOI: 10.1016/j.conb.2020.02.008
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Funding
- Simons Foundation [543069]
- International Research Scholar Program by the Wellcome Trust
- Howard Hughes Medical Institute [208565/A/17/Z]
- Boehringer Ingelheim
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Recent neuronal activity recordings of unprecedented breadth and depth in worms, flies, and mice have uncovered a surprising common feature: brain-wide behavior-related signals. These signals pervade, and even dominate, neuronal populations thought to function primarily in sensory processing. Such convergent findings across organisms suggest that brain-wide representations of behavior might be a universal neuroscientific principle. What purpose(s) do these representations serve? Here we review these findings along with suggested functions, including sensory prediction, context-dependent sensory processing, and, perhaps most speculatively, distributed motor command generation. It appears that a large proportion of the brain's energy and coding capacity is used to represent ongoing behavior; understanding the function of these representations should therefore be a major goal in neuroscience research.
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