Products Matrix

The below table lists available tests for the following systems:

Note: The table shows all available tests per product. The tests included with your system will depend on the configuration that you purchase. Certain tests may be priced and/or sold separately. Additional tests may be available for research only use with a valid IRB such as cognitive and reaction time test protocols. Please contact us for more information.

View video examples of testing on our YouTube channel.


Test I-Portal®
I-PAS™ and
I -Portal®
Oculomotor,  Vestibular, and Reaction Time Tests (OVRT)
Spontaneous Nystagmus X X X
Gaze Nystagmus (H&V) X X
Saccade Random (H&V) X X
Smooth Pursuit (H&V) X X
Full field Optokinetic (OKN) X X
Subjective Visual Vertical/Horizontal X X
Visual (Suppression, Interaction, and Enchancement) X
Chair Trapezoidal (Step Test) X
Sinusoidal Harmonic Acceleration X
Dynamic Unilateral Centrifugation (DUC) with SVV X
Head Impulse Test (HIT) X
Controlled Rotation Head Impulse Test (crHIT) X
Pulse Step Sine (PSS) X
Custom Unilateral Centrifugation X
Caloric X X
Positionals X X
Positioning (Dix-Hallpike) & Custom X X
Other Tests
Custom tests to collect unstructured data X X X

*Tests vary by NOTC model.

Back to Products ››

Exclusive Online Access to 'Member-Only' resources