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.
Event-related power changes in left sensorimotor cortex. A, Grand averaged time–frequency maps of ERD/ERS during passive listening before and after the active task. B, Grand averaged time series of β (15–25 Hz) changes, showing β decrease in the second listening block. C, P values from a permutation test show significant differences between both time–frequency maps in the β range ∼300 ms after sound onset.
