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.
(a) Top‐view of the abstract shapes used for the drilling task. (b) Side view with cross‐section shows the different regions of the shape. Drilling in the sides and bottom of these regions comprised the error metrics for laterality and depth, respectively. (c) Each drilling task was completed via indirect (with the shape reflected through a mirror‐ as pictured here) and direct (no mirror) observation. [Colour figure can be viewed at wileyonlinelibrary.com]
