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.
Trend-level interaction effect from the longitudinal analysis of the n-back task suggesting that CCE and placebo groups demonstrated different trajectories over time. Specifically, CCE showed a more pronounced increase in proportion correct during the first two weeks and continued to improve, whereas placebo did not. Percentages indicated are calculated from baseline.
