Vertebrate brains evolved to facilitate a diverse array of behaviors and internal cognitive processes. Theories of neural function have proposed that neural computation is organized within populations or ensembles of neurons. Here, we identify ensembles of neurons in the striatum, the main input nucleus of the basal ganglia, in which...
Dopamine neurons are characterized by their response to unexpected rewards, but some also fire during movement and in response to aversive stimuli. Dopamine neuron diversity has also been observed based on their genetic expression profiles, suggesting that different functions might map onto such genetic subtypes. However, this has not been...