The content is available as a PDF (597.6 KB).
. 1982 Jun 1;2(6):704–707. doi: 10.1523/JNEUROSCI.02-06-00704.1982
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.