Summary: New research reveals that the brain may be learning even during unstructured, aimless exploration. By recording activity in tens of thousands of neurons, scientists found that the visual cortex…
Tag: HHMI
How Serotonin Circuits Learn from Motion to Regulate Behavior
Summary: Scientists have uncovered how serotonergic neurons in larval zebrafish process visual information tied to movement to determine when and how much serotonin to release. This neuromodulator fine-tunes the fish’s…
Ketamine Reduces “Giving Up” by Targeting Brain Support Cells
Summary: Researchers have found that ketamine’s antidepressant effects target astroglia, a type of brain support cell, rather than neurons, challenging conventional views. Using zebrafish, scientists observed that ketamine suppressed the…
