title: Listening to the crowd: neuronal ensembles rule.
abstract: In this issue of Neuron, Durstewitz and colleagues show that neuronal populations in the medial prefrontal cortex (mPFC) of rats reflect abrupt changes in behavioral strategy as animals learn to act according to new rules in a rule-switching task.
authors.affiliation: Champalimaud Neuroscience Programme, Instituto Gulbenkian de Ciência, Rua da Quinta Grande, 6, P-2780-156 Oeiras, Portugal.
authors.forename: Claudia E
authors.initials: CE
authors.lastname: Feierstein
authors.forename: Zachary F
authors.initials: ZF
authors.lastname: Mainen