fMRI Stimulus Delivery
Click each image for a larger view of the fMRI console
MRA has developed a fully integrated fMRI stimulus delivery system for
both clinical and research facilities. The complete system includes the fMRI
stimulus delivery console, Windows XP computer system, patient response hand
switches, video projection into the MRI bore, and MRI compatible patient
headphones. All wiring into the MRI shielded room is connected through filters
on the lab panel. The radio frequency shielding of the MRI room is not
compromised by any of this equipment.
The video projection system can be tailored to meet the design of your
current MRI room. The preferred method is projection through a wave guide
aligned with the center of the MRI bore. The projector can also be installed
inside the radio frequency shielded room. An RF shielded projector housing is
available for those rooms that do not have a projector wave guide
All systems and audio/video switching is integrated into the user
friendly fMRI stimulus delivery console.
- Patient Response Pad circuitry is integrated into the system. The
Patient Response Pad system is a USB compliant device with drivers available
for Windows and Mac OS. The fMRI console has preset configurations to allow the
Patient Response Pad to accurately emulate the responses for the three most
common paradigm experiment software packages. The operator can easily configure
2 switches to emulate the SuperLab, E-Prime, or Presentation stimulus programs.
An indicator light is installed on the console to confirm that the Patient
Response Pad drivers are properly loaded on the paradigm experiment
- Five (5) Fiber Optic patient response switches are the standard
The fMRI operator has both audible and visual responses to
patient response switches.
Response switches are configured for normally
open or normally closed switching.
Adjustable gain control of fiber optic
sensors allows for use of custom patient response switches.
available for any number of hand switches for your specific custom designed
Custom designed hand switches are also available that
encourage timely and accurate participation by children.
- Stereo audio system
Bass, Treble, and Balance
Available equalizer connections.
Separate patient and operator
VU meter to monitor audio levels.
High volume cut out to
prevent audio damage to patient.
Operator to patient intercom system is
separate from volume controls. The intercom system is always on to prevent loss
of communications to your patient.
- 4 Audio input connections and 4 Video input connections permit the
fMRI researcher to implement their own audio and video equipment into the
- Remote control of the video projector system from the operator
- Connection to the MRI console triggering system for synchronized
activation of paradigm and MRI scanning.
- The fMRI console can be located away from the MRI operator console. A
remote microphone and triggering control system is available for the MRI
operator. A patient response switch indicator light is available for placement
at the MRI operator position.
Click each image for a
larger view of the fMRI console system installation
Presky for more details on the fMRI Stimulus Delivery Console.
Dennis R. Presky, President
Washington, PA 15301
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