Visual stimulation for MRI research
PROPixx projects high-speed visual stimuli into the scanner room from the control room. Triggers, responses, audio, and 2 kHz eye tracking share one DATAPixx3 clock, locked to your MR triggers.
MRI needs more than a projector
Scanner time is expensive, and your stimulus infrastructure should be the one thing you never have to worry about. Most labs run a multi-vendor stack where getting the timing right is an ongoing engineering project.
Research-grade image quality
Vision science needs fast, fully characterised visuals that hold up across many users, PCs, and software preferences.
Deterministic scanner sync
Locking stimulus delivery to MR triggers needs hardware-level synchronization, not software polling with variable latency.
In-bore delivery, MR-safe
Visual and auditory stimuli reach the participant in the bore from MR-safe hardware, with support behind every scan hour.
Two installation paths, one research-grade image
Outside-room projection, zero electronics inside
A standard PROPixx sits in the control room and projects through a waveguide into the scanner room, either directly at the bore or off a 45-degree mirror. No ferromagnetic components or electronics enter the MR suite, only light. Compatible with any field strength.
- Fully characterised, deterministic timing from signal to screen
- 480 Hz colour and 1440 Hz greyscale, up to 12 bits per colour
- Ten lens options from 0.73:1 to 14.83:1 throw
- Natively linear luminance output, verifiable onsite
Mount the projector inside the scanner room
When waveguide routing is not practical, PROPixx installs in the scanner room inside the SHIELDPixx Faraday enclosure. RF shielding contains all electromagnetic emissions, optimised for 1.5 T, 3 T, and 7 T scanners. Fibre-optic video and USB keep the signal path clean over distances up to 100 m.
- MR-safe chassis in an aluminium Faraday enclosure with optical window
- DisplayPort and USB over fibre, 1920 x 1080 at 120 Hz
- Shielding optimised for 1.5 T, 3 T, and 7 T scanners
- EN 60601-1-2, FCC Part 15/18, UL/cUL 60601-1, CE certified
One clock, every channel
DATAPixx3 puts stimulus, triggers, audio, responses, and gaze on a single hardware clock, locked to your scanner. What your participant saw, heard, and did is timestamped alongside your MR data.
Scanner synchronization
Lock stimulus delivery to MR triggers with microsecond precision. Hardware sync, not software polling.
Pneumatic stereo audio
SOUNDPixx delivers stereo audio on the same clock, with 30 dB noise reduction and no electronics in the bore.
2 kHz eye tracking
TRACKPixx3 /MRI adds binocular gaze in the bore, timestamped on the same DATAPixx3 clock.
Fibre-optic responses
RESPONSEPixx /MRI button boxes are 100% plastic and report over fibre with microsecond timestamps.
Scanner and software compatibility
Compatible with every major scanner and stimulus platform.
MRI system components
PROPixx projector
MR-safe PROPixx & SHIELDPixx
DATAPixx3
TRACKPixx3 /MRI
RESPONSEPixx /MRI
SOUNDPixx
Projection screens
Trigger cabling
MRI research using our products
years PROPixx has served MRI research worldwide
of PROPixx installations in MRI research sites
for a staff scientist to answer your support questions directly, for the lifetime of your product
Complete your MRI suite with VPixx Technologies’ tools for precision research
Tell us about your scanner and your paradigms; we design the light path and recommend a configuration. Systems starting at $41,500 USD.
Not sure if our system is right for your research? Book a free consultation with our staff scientists for expert guidance.