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.
Representative actograms showing free-running activity rhythms under long-term DD from 1 animal in each of the 3 groups (forced ethanol, free-choice ethanol, and water-only controls). All animals were maintained on plain water for the 1st 3 weeks of the experiment, after which ethanol was continuously available in the forced and free-choice ethanol groups (horizontal line indicates beginning of ethanol treatment on day 22).
