Figure 1.
(a) Apparatuses for the habituation phase; (b) apparatuses for the testing phase. Left: vertical tube apparatus; right: horizontal tube apparatus. Dimension are given in centimetres.
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.