Lateral Impulses; Training Guide - Interacoustics EyeSeeCam Instructions For Use Manual

Lateral impulses

Training guide

Before starting the test you can decide if you need to use a training guide. You can choose this option
under the Setting drop down menu by making sure there is a check mark in the box in front of the
Training Guide.
Figure 4.4.1-1 Setting Menu Training Guide Option
Peak Head Velocities are set in the velocity limits table (section 4.4.7).
The values entered into peak velocity table will determine the limits of the colored impulse guides (red
shading for right impulses and blue shading for the left impulses) The peak Head impulses that are in the
accepted range will peak in shaded areas with a default setting of a lower cut-off of 150 degree/sec and
must peak by 80 ms into the thrust. When the requirements are met, the waveforms for head and eye
movements will be shown together with a green check mark. If the head impulse does not meet these
requirements a red cross will be shown. The head movements are seen as red for right impulses and blue
for left impulse and the black lines represent the eye movements. In the raw data real time tracings the
head is black and the eye is in green. The lighter gray lines show the historical impulses that were
previously collected. The most recent impulse is in a bolder black color.
Figure 4.4.1-2 Legend for Head, Eye and History colors for impulses
Figure 4.4.1-3 Legend for Head and Eye colors for real time data.
D-0101516-E – 2019/03
EyeSeeCam vHIT - Instructions for Use - US Page 20