Skip to main content
. Author manuscript; available in PMC: 2013 Dec 12.
Published in final edited form as: IEEE Trans Neural Syst Rehabil Eng. 2012 Dec 3;21(2):10.1109/TNSRE.2012.2230188. doi: 10.1109/TNSRE.2012.2230188

TABLE I.

Levels of the Hierarchical Protocol

Prompt
Levels
(PL)		 Robot Prompt for a child named Max
PL l "Max, look" + shift (robot’s) head to target
PL 2* If NR$ after 5 s : "Max, look" + shift head to target
PL 3 If NR after 5s: "Max, look at that." + head shift + point to
target
PL 4* If NR after 5s: "Max, look at that." + head shift + point to
target
PL 5 If NR after 5s: "Max, look at that." + head shift + point to
target + audio clip sounds at target
PL 6 If NR after 5s: "Max, look at that." + head shift + point to
target + audio clip sounds at target and then video onset for
30s
*

PL2 and PL4 are intentionally repeated versions of PLl and PL3, respectively.

$

NR means no or inappropriate response.