Evidence for the substantia nigra pars compacta as an essential component of a memory system independent of the hippocampal memory system - Cunha, Claudio da; Canteras, Newton Sabino; Wietzikoski, Samantha; Wietzikoski, Evellyn C.; Miyoshi, Edmar; Ferro, Marcelo M.; Anselmo-Franci, Janete Aparecida (Neurobiology of Learning and Memory, 2003)