natus Otometrics ICS Chartr 200 VNG/ENG, Installation And Startup Manual

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Saccade Analysis, Raw and Averaged Values
Click on a data point (A) to move
the tracing (B) to correspond with
the analysis result.
Amplitude
– eye movement (in
degrees) between the initial pos-
ition and the first stop.
Accuracy – amplitude of a saccade
divided by the amplitude of target
movement; expressed as a per-
cent.
Peak Velocity
– maximum velo-
city reached in a saccadic move-
ment.
Latency – time between stimulus
movement and the first eye move-
ment
The shaded area is the abnormal
area.
Notes:
• The saccade being examined corresponds with the outlined data point ( ) in the Velocity, Accuracy, and Latency win-
dows.
• Use the waveform handle on the Amplitude chart to move the waveform up or down.
• The shaded areas on the Peak Velocity, Accuracy, and Latency charts represent normative data. Use this information to
compare the averaged responses.
E. Click F12 Save to save the analysis.
F. Go to Step 26 Analyze Sinusoidal Tracking ► 34 ,
Step 27 Analyze Slow Phase Velocity (SPV) Measurements ► 36 or
Step 28 Analyze Caloric Test Results (Pod and Butterfly Views) ► 39 .
Otometrics - ICS Chartr 200 VNG/ENG 33
5 Review and Analyze Collected Data