Edmond and Lily Safra Center for Brain Sciences and the Interdisciplinary Center for Neural Computation, The Hebrew University of Jerusalem, Jerusalem, Israel. matan.sorek@mail.huji.ac.il|Edmond and Lily Safra Center for Brain Sciences and the Interdisciplinary Center for Neural Computation, The Hebrew University of Jerusalem, Jerusalem, Israel. matan.sorek@mail.huji.ac.il|Edmond and Lily Safra Center for Brain Sciences and the Interdisciplinary Center for Neural Computation, The Hebrew University of Jerusalem, Jerusalem, Israel. matan.sorek@mail.huji.ac.il