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Nystagmus Investigation

Use AcqKnowledge to turn LEDs on and off while recording EOG to study pendular or jerky nystagmus. The software can record both the slow and fast portion of nystagmus signal. BIOPAC has solutions for both tethered and wireless recording of EOG data.

To isolate both slow and fast phase nystagmus components, use the guided AcqKnowledge dialogs to vary the speed of changing lights during recording.

AcqKnowledge measurement tools make it easy to measure the nystagmus intensity, which is defined as slow-phase velocity (SPV). The SPV value is the distance the eye travels through the slow phase divided by the time it took to pass through the phase (SPV = delta distance / delta time).

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