Requirement for hippocampal CA3 NMDA receptors in artificial association of memory events stored in CA3 cell ensembles.

"Declarations Ethics approval and consent to participateAll procedures involving the use of animals complied with the guidelines of the National Institutes of Health and were approved by the Animal Care and Use Committee of the University of Toyama (Approval numbers: A2019MED-35, A2022MED-7). Consent for publicationNot applicable. Competing interestsThe authors declare no competing interests. Competing interests The authors declare no competing interests."

"Funding This work was supported by JSPS KAKENHI (Grant Numbers: JP23220009 and JP18H05213), the Core Research for Evolutional Science and Technology (CREST) program (JPMJCR13W1) of the Japan Science and Technology Agency (JST), a Grant-in-Aid for Scientific Research on Innovative Areas “Memory dynamism” (JP25115002) from MEXT support, the Takeda Science Foundation to K.I., and the Grant-in-Aid for JSPS KAKENHI Scientific Research(B) (20H03554), Challenging Research (Exploratory) (17K19445), THE HOKURIKU BANK Grant-in-Aid for Young Scientists, the FIRSTBANK OF TOYAMA SCHOLARSHIP FOUNDATION RESERCH GRANT, the Takeda Science Foundation, the Tamura Science and Technology Foundation, and the Narishige Neuroscience Research Foundation support to M.N."