Used Nexis™ By PHOTOSONIX® EEG Driven Photic Stimulation

[Guest guest]

Nexis™ By PHOTOSONIX® EEG Driven Photic Stimulation

Purchased in 2004 from PhotoSONIX (hardware manufacturer of Roshi). Used

approximately 20 times. If you want to incorporate EEG Driven Photic Stimulation

into your practice, this is a great chance to do so. Will sell for $900. If you

have tried finding EEG Driven equipment you know that these units are hard to

come by especially in this price range. For questions, more photos, a copy of

the manual, etc., email me at mr1val@... Thank you.

Includes:

Nexis Interface Unit

Nexis Interface Control Software

Battery charger

4 pairs of glasses (TruWhite pvStim, Indigo, Red pvStim, and CoolBlue pvStim)

EEG Leads (gold plate discs) Red for right active (+), Black with ear clip for

right reference (-), Green for left active (+), Black with ear clip for left

reference (-), Blue for ground.

Serial Cable: 9 pin male to female

Keyspan serial to USB adapter

Control Protocols:

ENTRAIN causes both lenses to flash in phase.

DISENTRAIN FIXED PHASE causes the right lens to flash 180 degrees out of phase

with the left lense.

DISENTRAIN VARYING PHASE causes the right lens to ramp its phase from zero to

180 continuously.

DISENTRAIN OFFSET FREQUENCY cause the right lens to flash at 2 hertz above the

discrete rate selected in the frequency drop down.

DISENTRAIN RANDOM (RANGE) causes the right lens to flash at random frequencies

in the range selected in the frequency drop down menu.

DISENTRAIN EEG (no freq.) cause the lenses to flash at a frequency determined by

a time-frequency algorithm.

Control Frequencies:

THETA (2-6) Range: causes Nexis to ramp up between frequencies within the 2 to 6

hertz range. The phase will be determined by the protocol selected. If ENTRAIN

IS selected, both lenses will flash at the same time interval. If DISTRAIN FIXED

PHASE is selected, the frequency will ramp within the 2 to 6 hertz range, but

the right lens will flash 180 degres from the left.

ALPHA, SMR, BETA LOW,AND BETA HIGH: each ramp up between the frequencies with

the named range. In each case, phase will be determined by the protocol

selected, except in the case of DISENTRIN FIXED PHASE.

1hz, 2hz, 3hz, and higher: when selected will cause Nexis to flash at that

discrete frequency. The phase will be determined by the protocol selected.