In mammals, a neural pathway called the cortico-basal ganglia circuit is thought to play an important role in the choice of behaviors. However, where and how behavioral programs are written, stored and read out as a memory within this circuit remains unclear. A research team led by Hitoshi Okamoto and Tazu Aoki of the RIKEN Brain Science Institute has for the first time visualized in zebrafish the neuronal activity associated with the retrieval of long-term memories during decision making.
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