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.
Scalp distribution of the Friedman test statistics for the HF-to-brain and brain-to-HF comparison between three levels of valence. Trials for each group of arousals were averaged separately for the two datasets. Colormaps indicate the amplitudes of the respective Friedman statistic and thick electrodes indicate significance (P < 0.05/32).
