AUTHOR=Valiant Leslie G. TITLE=Toward Identifying the Systems-Level Primitives of Cortex by In-Circuit Testing JOURNAL=Frontiers in Neural Circuits VOLUME=12 YEAR=2018 URL=https://www.frontiersin.org/journals/neural-circuits/articles/10.3389/fncir.2018.00104 DOI=10.3389/fncir.2018.00104 ISSN=1662-5110