Getting StartedThe 904 fORP system is a low cost, high feature package for subject response in fMRI. It's really easy to use. Attach the handheld to the interface (with or without the removable bundle) and the computer USB cable; now you're ready to get responses. There are two trigger inputs (optical and TTL) for syncing your data with the scanner.
Front PanelThe USB connection is made to the small USB connector on the front panel, shown here on the right (as P1).
The front panel also has 5 LED indicators, for trigger and button status.
Rear PanelThe optical connections are made to the rear panel. You can connect most optical handheld devices directly to the optical port (P4), or through long removable bundle to that port.
The 904 will also accept TTL and optical trigger inputs on ports P3 and P2, shown here.
The TTL input is positive edge-triggered and has a weak internal pullup resistor (47 k ohm). There is no minimum pulse width for the TTL input.
The interface is powered by the USB port and automatically adjusts the light levels for use with or without the bundle.
Standard OutputIf you are using the 904 with a button box, and have not requested special outputs, this is what will be sent over the USB connection:
SupportIf you have any questions, please contact us here:
Current Designs, Inc.
3950 Haverford Ave.
Philadelphia PA 19104
Phone: 215 387-5456
Fax: 215 386-4857