Peripheral equipment

Visual Stimulus Projector (Panasonic PT-DW750BU)


The DBIC uses the Panasonic PT-DW750BU 7000-Lumen WXGA DLP Projector for the presentation of visual stimulus. This projector offers 7000 lumens of brightness and a 3000:1 dynamic contrast ratio, which work together to overcome light in most rooms and provide detail in dark areas of the image. Additionally, this projector has a WXGA 1280 x 800 native resolution for viewing detailed pictures or data. It is powered by a DLP chip system with a dual-lamp design. The PT-DW750BU includes a lens with a 1.8 to 2.5:1 throw ratio that can produce images from 50 to 600".

The projector has HDMI, DVI-D, 5-BNC, and VGA inputs, which allows for different types of external video sources. It is controllable via Ethernet, RS-232, M3, or the included IR/wired remote control.

The projector attaches to stimulus computer via video adapter. The image is mirrored on a monitor in the control room.

Audio Stimulus (Sensimetrics Model S14)


The S14 insert earphones provide high-quality acoustic stimulus delivery while attenuating scanner noise. They are small enough to fit within any head coil, and can be covered with circumaural muffs for added protection if the coil allows.

Frequency response equalization is achieved by pre-filtering stored digital stimuli. Equalization filters are provided and can be used either within Matlab or with a stand-alone filtering program (provided). A small power amplifier is required.

Audio stimulus is connected to stimulus computer via 2.5mm jack. External speakers are available in the control room to allow monitoring of the audio stimulus.

Trigger and response device interface (Current Designs 932 Interface)

Current Designs

The opto-electronic interface receives optical signals from the handheld devices in the MR suite and converts them into electronic signals for the computer.  The 932 is standards-based: the outputs are not designed to be used with a specific program or hardware platform, but are instead designed to work with everything. This interface provides complete USB, Serial, and Parallel outputs.


The DBIC uses the SR Research Eyelink 1000 Plus for eyetracking data collection. Our system offers a high-speed camera with upgraded high-speed tracking, a fiber-optic camera head, long range mounting bar, 890nm Illuminator, 20/32/64 channel Siemens head coil mirror (16cm x 12cm), 50mm lens for MRI, and a Siemens Prisma tray mount.

fomri iii microphone (optoacoustics)

For recording audio in the scanner, the DBIC offers the FOMRI III microphone.

Biopac mp160

Biopac MP160

For collecting real-time physiological data during fMRI scanning, such as skin conductance, pulse rate, and respiration rate, DBIC maintains a BIOPAC MP160 system. The system includes a dedicated MacBook laptop running AcqKnowledge software facilitating data recording. A USB interface allows the investigator to connect their laptop to the BIOPAC system for synchronizing experimental and physiological time-courses, or for sending event markers or arbitrary time-course data. The BIOPAC system is highly modular, modifiable, and flexible -- affording investigators a wide range of options for collecting auxiliary data and enhancing experimental protocols. 

BIOPAC user guide


The following response devices are available for use in the DBIC. All accessories interface with the stimulus computer via USB.

4-Button Bimanual

4-button bimanual



Pyka 5-button grip


Trackball 2

Trackball 2