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.
Linear extraction by a modified PCA (Machens et al., 2010) of a time invariant signal that most strongly reflects the coding of stimulus frequency during the delay period. The extraction is done on half the trials, and the projection on the other half. Note that even the random network has a roughly time-invariant component.
