Topic: Neuropixel probe recordings

The basal ganglia are a network of subcortical nuclei that play a central role in regulating motor and cognitive functions. A critical hub in these structures is the external globus pallidus (GPe) as it links all nuclei in this network. This nucleus was long considered a homogenous relay in the motor-suppressing indirect pathway. However, the GPe is anatomically and functionally diverse. How the GPe subpopulations contribute differentially to cognitive and motor function is currently unknown. Here, we find (1) that the GPe encodes motor and value signals in distinct subpopulations, (2) that th