fORP Technical Specifications

Interface Program Information

We believe our response devices are compatible with all of the software available today for stimulus presentation and response measuring. Please tell us if you think you are using a package that does not seem to be supported.

Program choices are made by way of an eight position switch on the interface unit. Each interface option (USB, Serial, or TTL) has up to 8 different output formats, according to this table.

fORP Switch Table

System Specifications

Fiber

• 8 x 0.030 in. strands in a PVC conduit (4-channel)
• 12 x 0.030 in. strands in a PVC conduit (8-channel)
• 0.4 in. bundle outer diameter
• 0.675 in. connector outer diameter
• 55 feet standard bundle length (attach two for 110 feet)

Button Box (4)

• All plastic construction
• (4) 0.43 in. colored round buttons in diamond or in-line pattern
• 10 foot long fiber pigtailed connector to reach bundle
• Compatible with both 4- and 8-channel bundles.
• No EMI/RFI filtering required; no electronics in MR room

Button Box (8)

• All plastic construction
• 36 inch "Y" joining two button boxes
• (8) 0.43 in. colored round buttons in inline handhelds
• Requires 8-channel (12 fiber) bundles
• No EMI/RFI filtering required; no electronics in MR room

5 Button Stick

• All plastic construction
• Overall: 1 in (2.5 cm) diameter, 7 in (17.8 cm) length
• 5 buttons: thumb and 4 fingers (fingers on 0.8 inch (2.0 cm) centers)
• Requires 8-channel (12 fiber) bundles
• No EMI/RFI filtering required; no electronics in MR room

Joystick

• All plastic construction
• Two-axis continuous pointing device
• Finger actuator vs. Grip actuator (easily removeable grip)
• Base: 7.25 x 4.25 x 2.25 in (19 x 11 x 6 cm)
• Overall height: 7.0 in (18 cm)
• (2) 0.43 in. colored round buttons positioned symmetrically aroundshaft on base.
• Finger stick: 1 x 0.35 in (2.4 x 0.8 cm)
• Grip 4.5 x 1.25 in (11.5 x 3 cm)
• Angular range: 30 degrees (+/-15 degrees)
• Requires 8-channel (12 fiber) bundles
• No EMI/RFI filtering required; no electronics in MR room

Trackball

• All plastic construction
• Two-axis shaft encoder cursor control
• Overall dimensions: 4 in. x 5.75 in. x 1.75 in. (10 cm x 15 cm x 4 cm)
• Two side buttons
• Requires 8-channel (12 fiber) bundles
• No EMI/RFI filtering required; no electronics in MR room

Interface

• 9 TTL outputs (10-10 Modular Connector)
• USB (USB type B)
• RS-232 (8 pin mini-DIN)
• 8 transmit LEDs
• 8 position program selector switch
• Standard or European power supply
• 1 in. x 4.5 in. x 7 in. aluminum enclosure
• L.E.D.s:4 indicators show response independently of PC/Mac

Timing Resolution

• 0.8 ms with 4 button devices
• 1.6 ms with 8 button devices
• (Does not include data transmission and software latency.)

Triggering

• TTL input, 47k ohm pullup, positive edge triggered
• RS-232,TTL, or USB output