Knowledge gaps in the early growth of semantic feature networks.

"Competing Interests: The authors declare no competing interests."

"The authors thank Leonardo Torres, Dr. Tina Eliassi-Rad, and Brennan Klein for helpful discussions. This work was supported by the National Science Foundation CAREER PHY-1554488 to DSB. The authors also acknowledge support from the John D. and Catherine T. MacArthur Foundation, the Alfred P. Sloan Foundation, the Paul G. Allen Foundation, the Army Research Laboratory through contract number W911NF10–2-0022, the Army Research Office through contract numbers W911NF-14–1-0679 and W911NF-16–1-0474, the National Institute of Health (2-R01-DC-009209–11, 1R01HD086888–01, R01-MH107235, R01-MH107703, R01MH109520, 1R01NS099348, and R21-M MH-106799), the Office of Naval Research, and the National Science Foundation (BCS-1441502, CAREER PHY-1554488, BCS-1631550, and CNS-1626008). The content is solely the responsibility of the authors and does not necessarily represent the official views of any of the funding agencies. The funders had no role in study design, data collection and analysis, decision to publish or preparation of the manuscript."