Learning reorganizes neural activity patterns to help distinguish important smells
Learning can change how the brain organizes sensory information, but researchers are still working out what those changes look like across large groups of neurons. One possibility is that the brain stores a familiar smell as a single, stable pattern of neuronal activity. Another possibility is that patterns are not fixed. Instead, learning changes the range of patterns the brain can produce,…
Zebrafish study reveals brain reorganizes neural patterns to enhance smell discrimination. Researchers discovered that learning alters high-dimensional neural manifolds, which are mathematical descriptions of varying neuronal activity patterns. These manifolds, initially complex and interconnected, became more distinct after training, aiding the fish in distinguishing essential odors from nonessential ones.
The findings suggest that memory formation might be akin to reshaping a map, with important smells becoming more easily distinguishable.
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