Contact to obtain a link to the repository with hours long data of spontaneous activity recordings, sampled over several days from rat cortical neurons in culture, 2-3 weeks following plating day (1st day postpartum).  The data are free, no authorship charged, but I ask that unless otherwise coordinated with me, the following note should be appended to any written material resulting from analyses of the data: “The data originates from the group of Shimon Marom (Technion—Israel Institute of Technology, Haifa 32000, Israel). Shimon Marom did not participate in the analyses and\or interpretation of the data as presented here, and therefore cannot be accountable for their outcome.