neurons control active-period sleep via parvalbumin neurons in externalglobuspallidus. eLife. October 2017, 6: e29055. PMC 5655138 . PMID 29022877. doi:10
PMC 2737828 . PMID 19043410. doi:10.1038/nn.2233. Hong S, Hikosaka O. The globuspallidus sends reward-related signals to the lateral habenula. Neuron. November