Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
LN inputs were set to 
(
). 
was set to 
. The PN firing threshold, 
, is 0 (solid line), 0.02 (dashed line), or 0.04 (dot-dashed line). Panel B is an expanded view of panel A.
