In Depth

Simply click one of the links below or scroll down to see the options available for creating a customised solution for subject response in the MR environment.

fORP Fiber Optic Handhelds

Basic Handhelds

Joystick

Trackball

Custom Handhelds

Sliders

Dials and Wheels

Grip Force Transducer

Special Button Boxes

USB Trainer Handhelds

fORP Electronic Interface

fORP Removable Fiber Optic Bundle

fORP Fiber Optic Handhelds

Current Designs' fiber optic handhelds are all plastic, working entirely on light. These response devices connect to the electronic interface using the removable fiber optic bundle. A complete system is made up of at least one handheld, the interface, removable fiber optic bundle, power supply and computer cables, but can include as many handhelds as needed.

Basic Handhelds

Inline Model No: HH-1x4-L	Diamond Model No: HH-1x4-D	Bimanual 4 Model No: HH-2x2	5 Button Stick Model No: HH-5-CYL	Bimanual 8 Model No: HH-2x4-C

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Joystick Joystick Model No: HH-JOY-4

Current Designs' Fiber Optic Joystick is designed to give a joystick/game controller option for use in special environments like MRI or MEG where metal or electronics could hinder data acquisition, degrade image quality, or pose safety risks. The all-plastic joystick works on light signals from our electronic interface which is placed outside the magnet or MEG room. A complete system includes the joystick handheld, an interface and the removable fiber optic bundle.

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Trackball Trackball Model No: HH-TRK-1

The fiber optic trackball is designed to give a mouse-like computer response option for use in special environments like MRI or MEG where metal or electronics could hinder data acquisition, degrade image quality, or pose safety risks. The all-plastic trackball works on light signals from our electronic interface which is placed outside the magnet or MEG room. A complete system includes the trackball handheld, the electronic interface, and the removable fiber optic bundle.

Joystick and Trackball Comparison
The joystick produces movement whenever it is moves away from the center, so it is less easily controlled. There is a short initialization period when it is turned on when the joystick should be stationary. There is a good neutral spot which will produce no movement. The buttons are just like those on our button boxes.
The trackball only produces movement when it is turned, so it is more easily controlled. It does require a light touch and should be used before the task. The buttons are less definite than the joystick buttons. Generally, the joystick works better as a game controller and the trackball works better as a mouse.

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Custom Handhelds

We've made a wide range of special response devices for around the same cost as our standard handhelds. We can accommodate most special requests using the standard fORP interface unit (up to 8 buttons or 4 buttons and two rotational/force axes). The outputs can be modified to accommodate most tasks.

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Sliders

Sliders have a wide range of configuration options including:

• Digital or analog data output.
• With or without detents.
• Center, left or right position to start.
• Variety of return to origin, from strong pressure to no pressure.
• Up to 4 buttons can be included.
• A variety of compute outputs available.
• Priced like standard handhelds.

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Dials and Wheels

Rotational sensors also have a wide range of characteristics:

• The type of wheel can be large or small.
• It can be a continuous analog output or a incremented values.
• Up to 4 buttons can be included.
• A variety of compute outputs available.
• Priced like standard handhelds.

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Grip Force Transducer

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Special Button Boxes

While our standard button boxes are optimized for most people, there are some subjects who have special requirements.
We can work with you to develop custom handhelds that will work well for a specific task.

• Modify the buttons to make larger or smaller.
• Add varying indentation.
• Change the spring force so more difficult to accidentally push.
• Change button placement.
• Add a fifth button, including on the side or back.
• Priced like standard handhelds.

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USB Trainer Handheld Devices

We also offer USB Trainer versions for our button boxes. These are electrical copies of our fiber optic response pads, allowing subjects to be trained outside the magnet environment. Available with both 2 and 4 buttons, they can be combined for up to 8 buttons. Easy to use, USB bus-powered by the USB port -- so no extra wires. User configurable through the USB port. Also includes an input for the trigger, or for an optional Screen Detector

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fORP Electronic Interface

The fORP Electronic Interface supports all of our handheld units and all psychometric software packages, so it can be shared easily by users with differing platforms. It is the heart of the fORP system, transmitting and receiving the optical signals and producing the computer outputs. There is a trigger input for synchronizing computer response data with MRI or MEG data.

Our response devices are designed to work with all the software available today for stimulus presentation and response measuring.

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fORP Removable Fiber Optic Bundle

The fiber optics are bundled inside a robust plastic casing and connects the response device to the optoelectronic interface unit. It is easily passed through a standard wave guide in the penetration panel and needs no special filtered connectors or complicated installation.

• Removeable
• No wires or metal
• Can't conduct noise into the room
• All plastic construction

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