The Cyberlink is a new breakthrough technology.

It allows people, regardless of physical condition, to control and communicate through their computers completely hands-free. The Cyberlink is a sophisticated integration of hardware and software providing a communications link between people and machines. It is easy and fun to use. Just strap on the headband, plug it into your computer and let your head enable hands-free control of your computer and other electrical devices.

The Cyberlink senses and responds to minute surface electrical signals generated from subtle muscle, eye movement, and brainwave activity detected at your forehead. These signals are detected by three sensors in the headband and are amplified, digitized and transmitted to the computer where they are decoded into multiple frequency bands known as Brainfingersâ„¢. By controlling the computer's mouse-curser, Brainfingers can be used to control virtually all aspects of a computer. They can navigate almost any Windows application such as web browsers, business and productivity software, communication devices, musical synthesizers, sound cards, and even games. Brainfingers can also activate peripheral devices, adjust environmental controls, and affect feedback displays. Just about any application that can be controlled with a mouse can be controlled with the Cyberlink.


The three Sensors in the headband detect your facial muscles, eye movements and aspects of your brain's electrical activity. Using proprietary software and hardware, the Cyberlink interface unit amplifies and translates this data into separate frequencies, which are then transmitted to your PC's serial port and are displayed as Brainfingers.

Brainfingers are used to control the up-and-down and the left-and-right movements of the mouse cursor; affect visual and musical biofeedback displays, and can be user-formatted to control mouse button and keyboard commands. Eye movements and facial gestures can be separately "mapped" (or recognized) to control user-formatted mouse keyboard functions and software commands. Individual control formats and adjustments are then easily made by using the user-friendly graphical interface.
Cyberlink is designed to be used by a broad range of people with disabilities; from minor to severe. Even users with minimal ability to control facial muscles can usually learn how to map "clicks" to a number of special controls. For users on a ventilator or for those who lack consistency with facial control (causing the Cyberlink to generate unwanted signals), Cyberlink has a manual keyboard override control that places Cyberlink into a pause mode. The override can be accessed easily by the user or by the user's personal care attendant.

Almost any Windows 95/98/Me or Windows 2000/NT/XP application or game can be controlled hands-free with the Cyberlink using the Cyberlink Actuated Trackerâ„¢ (the CAT Launch Program).



Although this website is not intended as a tutorial, we would like to show you the basics of how our software works. The Cyberlink consists of two main programs; the Cyberlink Explorer, and the CAT Launch Program. Cyberlink Explorer helps the user to discover Cyberlink's capabilities and teaches how to create "conscious control" of the signals detected by the headband. We also included several applications and games to help further understand and control the Cyberlink. After learning how to consistently control the Cyberlink Explorer, the next step is to use the CAT Launch Program to control the desktop and actually run third party applications.

A description of the software along with a few examples of actual Cyberlink users are shown below.

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The Brainfinger Display Window

The Brainfinger Display Window has two components: Brainfingers and the BrainBody signal.

The top component has the most practical use for people new to this system and is composed of three color-coded groups of Brainfingers plus the yellow Muscle Brainfinger.

Learning how to control some or all of the four Brainfinger groups allows hands free control of the mouse's curser and computer. The BrainBody display at the bottom of the Cyberlink Explorer window represents the signal from the user's forehead and is used to produce the first ten Brainfingers.

Let's now take a closer look at the Brainfinger Display Window. Brainfingers are grouped into four sections which are fully user programmable. For most people, Brainfingers can be easily mastered by using the basic F2 and Muscle configurations. Because the software is fully configurable, people with special needs can also learn to control their computers using less common adjustments.

The Brainfinger sections are as follows:



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F1 thru F3 -- Lateral Eye Movement:

The lowest three Brainfingers are most responsive to lateral eye movements. For those of you who can easily control your eyes, we recommend using the F2 Brainfinger to control the left and right movements of your computer's cursor.

In this Brainfinger display window, Joyce, the Current User, "became quiet" for a few moments and allowed all of her Brainfingers to "settle down." She then rapidly moved her eyes to the right which generated the Brainfinger F2 response.



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F4 thru F6 -- Alpha Brain Resonance:


The middle three Brainfingers are generally responsive to Alpha brain wave signals (along with minute electrical energy generated from faint muscle movements in and around the forehead).

Even though most users find it easier to control either the F7-thru-F10 or the Yellow Muscle Signal we feel it is valuable to practice controlling the Alpha Brainfinger in preparation for using F7-thru-F10 Beta Brainfingers.

Possible techniques for learning Alpha control are to relax your neck muscles and eye muscles, and quiet your mind. With a little practice a feeling can be observed that relates to an increase in the Alpha Brainfingers. We define this feeling as an "Alpha State." Once this feeling is learned it can be used to enhance F7-thru-F10 Beta Brainfinger control.

The Brainfinger display window shown represents a specific moment in time for David, an experienced Cyberlink user. To achieve the result shown, he intentionally generated an Alpha "resonance" at Brainfinger F5. To describe how he created this Brainfinger response, David said, "I relaxed the muscles in my face and neck, softened my eye muscles, and imagined there was an umbrella of quietness around my head." For more information about "Alpha and Beta," please click on Deeper Look at the Software.

F7 thru F10; Beta Brain Resonance:

The F7-F10 Brainfinger range is available to users who have problems controlling facial muscles or who have difficulty controlling their muscle signal.

This range is sensitive to both "mental intention" and "broad-band muscle activity," and combines with the user's lessened muscle activity just enough to boost control of one of the F7-F10 Brainfingers (described below).

Brainfinger control can also be enhanced by using the "Alpha state" to create a "foundation" or "baseline." Since "Alpha" is generally considered to be a "quiet mental state," Alpha can be used from which to move into an active "mental state/subtle physical state" to intensify the desired Beta Brainfinger.

For more information about "Alpha and Beta," please click on Deeper Look at the Software.


The Yellow Muscle Signal:

The yellow Muscle Signal is the easiest of all the Brainfingers to bring under conscious control. It is the signal most people use for to control the up/down movement of the cursor and to control "clicking."

For this screen shot, Joyce allowed all her Brainfingers to settle and then simply lifted an eyebrow to elevate the Muscle Brainfinger. She can also generate the Muscle Brainfinger by tightening her jaw or by pressing her tongue onto the roof of her mouth.

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Cyberlink's Control Windows

One of Cyberlink's strongest features is its adaptability. Depending upon the user's ability or even upon the user's level of disability, a computer can be fully controlled by defining which Brainfingers to use.

Once the user becomes familiar with the various Brainfinger sections, the user can then begin to explore different ways to control and click the mouse. The various windows that are used to control clicking and mouse movement are presented below:








The Cyber-Switch Adjust and Practice Window



Cyberlink's software allows you to choose from any one of the 11 Cyberlink Brainfingers to become your computer mouse's "click button." An example of the Cyber-Switch Adjust and Practice window (shown below) is where you learn how to click and practice. The majority of people choose the yellow Muscle Brainfinger for click-control because it is the both the quickest and easiest to learn; however, any one of the other Brainfingers can be used. For example, people who have little or no facial muscle control or people with involuntary muscle activity can use one of the other Brainfingers for click-control. Although the following demonstration windows may appear daunting at first glance, they will become familiar and easy to use after only a few practice sessions.

Cyberlink allows you to create both "single" and "multiple" clicks. The Cyber-Switch window above shows an example of a multiple- click response. In this example, David first created a long click; then two short clicks in succession. This screen-shot was taken right after the software recognized " two clicks" as indicated by the Left double-click message above the two clicks. The software recognizes the difference between a " click" and a " long click" by determining the time David makes the click stay above the Click Line. Multiple clicks are therefore determined by the time between clicks. Of course, all these values are user adjustable.

There are many advantages to being able to control both single and multiple clicks using the Cyberlink. Anytime you bring your click Brainfinger above the Click Line, you generate "clicks." Here are just a few examples of what can be done using Cyberlink's hands-free click-control software:

Generating a single click is ideal for control of scan and click software.


Generating a double-click results in sending a left double mouse click to your computer and to whatever third-party software you are using.


Generating triple-click generates a "click and drag" which can then be "dropped" anywhere on the desktop or to whatever third-party software you are using.


Generating four-clicks in succession results in a right-mouse click.


The cursor can be toggled between high speed/low resolution and low speed/high resolution which makes it easier to click on small icons and other small targets.


As always, you can compensate for un-intentional muscle spasms and un-intentional repeated clicking by simply adjusting the software.

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On-Screen Keyboard Practice Window



As part of the Cyberlink Explorer software, the On-Screen Keyboard is included for users to practice scan-and-click and point-and-click text entry as well to practice communicating using the software's powerful hands-free features. Shown below is a screen-shot of David's Keyboard/Button Control window in scan-and-click mode. David has just selected the letter "d" to be added to the already selected text "Hello worl" The scanning in this case went first by row, then by half row, and finally by letter. Note that the window gives you actual visual feedback of the click signal generated.

More than a learning tool, the Keyboard Buttons/Control menu allows you a number of ways to communicate. A full- keyboard layout can be selected as well as the option of using male or female voice synthesizers to "speak" what was typed.

As with all Cyberlink windows, the Keyboard Buttons/Control window is fully user adjustable. For example, if David clicked on the menu item Click Adjust, he could adjust his click-signal's sensitivity and baseline position as well as the timing and minimum click width (which regulates the mode of click).

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Click Game Window





Included in the Cyberlink Explorer package is the Click Game, which we developed as part of our National Institutes of Health (NIH) study. The game was created in order to collect performance data from the study's participants and although it is quite simple to use, we found that it became a good training tool and was valuable for quantifying a user's clicking ability and performance.

The goal of the game is to create a "hands-free" mouse click over one of four randomly appearing targets which will make it disappear. When the game is started, all four of the above colored targets disappear. As the targets randomly appear, the software waits for you to move the mouse "create" a click which will make the target disappear.

The response times are saved and summary statistics are given at the end of the game including a time history which can be accessed from the game's menu. For more information on the evolution and future of the Click Game, please click on Deeper Look at the Software.

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Brain Billiards Game Window



Included with Cyberlink Explorer software is Billiard Brainfingers, another valuable tool for learning how to control and hone your brainwaves. Valuable for all new users who are learning to control their Brainfingers, Billiard Brainfingers can be especially valuable for users with severe disabilities, such as for those with traumatic brain Injury as well as for people who may not appear to hear or understand instructions.

This is how it works: When you start the game, a yellow ball appears at the right side of the screen and slowly moves horizontally to the left. The object of the game is to move each of the 10 Brainfinger balls to intersect with the yellow ball. When successful, the software fills in the center of the ball as a confirmation that the ball was hit. This is how the balls are controlled:

The tops of the first 10 Brainfinger values (F1 - F10) are mapped to the ten colored balls.
Thus, if you move your eyes laterally, left or right, the three blue balls will move up.
If you intensify either your mental activity and/or your muscle activity, the four red balls will move up.
In most cases if you relax, all the balls will go down.
Once you learn to generate an Alpha relaxation, it becomes possible to elevate the three green balls while all the other balls go down.
As always, based upon specific needs, each of the Brainfinger values may be user defined.

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Grow Game Window



The Grow Game is another introductory game for learning how to control the cursor. Because it uses both visual and auditory feedback, it offers simple yet compelling feedback as a selected Brainfinger is controlled.

In this example, the small red square in the slide bar represents a chosen Brainfinger. Once the game is started, the colored circle grows when the signal (the red square in the left rectangle) goes above the green baseline. When the signal goes below the green baseline, the circle shrinks. As the circle changes size, musical notes are played which offers additional learning feedback.

This easy-to-use training tool allows you to select either the Up/Down or the Left/Right axis and which Brainfinger to control. Because The Grow Game gives such easy-to-understand visual and auditory feedback, it is a good learning tool for everyone; especially for people with severe disabilities. As with almost all of our software, helpers for severely disabled users can easily adjust the user's signal.

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Pong Game Window



Some of you may remember one of the earlier computer games called Pong. We recreated the game and included it in Cyberlink Explorer because it is such an excellent way to learn how to control a single axis.

As shown in this example, the user controls the up/down paddle on the left and the computer controls the up/down paddle on the right. You can also reverse the axis to practice controlling a paddle on the bottom that moves left/right. You can change the game's paddle size, the ball size and speed, and the computer's "expertise." As with all our software, adjustments are easily made through the Adjust Menu allowing you to control the signal and to map any one of the 11 Brainfingers to control the paddle.

This is how it works: Success in the game requires that you be able to intensify your Brainfinger to move the paddle up or to the right, depending upon what axis you are controlling, and to relax to move the paddle down or to the left. When engaged in the game the excitement of the ball coming towards your paddle tends to stimulate an emotional reaction, which adds an interesting complexity to the gaming experience.

In addition, each time you successfully return the ball or the computer returns the ball, the speed of the ball increases. Thus in the face of the excitement of the game you have to learn to control the paddle while being able to stay calm in order to "win."

As with all the games included in Cyberlink Explorer, the user is actually learning the necessary skills to control a curser's up/down and left/right movement.

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The Maze Game (Labyrinth) Window





The Maze Game teaches you how to control the cursor's up-down and left-right movement thorough a maze. With the cursor starting in the lower right hand corner of the screen, the task is to move it through the maze to reach the home box in the upper left hand corner.

Along with other skill-building "games," the Maze teaches how to control two axes at the same time. It is designed to hone motor skills and to give feedback on how the user is doing. Using its built-in timer, the user can now begin to quantify the speed by which the cursor is controlled and the "success" that is achieved.

As with most other Cyberlink Explorer windows, the user is given the ability to adjust the characteristics of individual Brainfingers being used to control the cursor. For example, cursor speed, sensitivity and baseline shift can be adjusted to affect the way the cursor moves in response to Brainfinger inputs. The game further prepares the user to actually control the mouse cursor on the desktop and thereby to control third party applications.

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Cyber-Mouse Setup and Practice




Once the user becomes increasingly comfortable with "clicking" and "moving the cursor in two axes," the Cyber-Mouse Setup and Practice screen helps to combine; then refine, coordinate and control mouse movement and clicking.

In the window shown above, David just finished executing a long click that toggled cursor speed to "slow speed/high resolution." The result is that the cursor now moves slower, and the message "Slow Speed" appears in the upper left corner of the cursor window. Note the yellow click line: In response to the click, the software presented the "Left Single Click" message and stopped the cursor for a user-designated length of time.

Just as with other windows, the user can adjust the Brainfinger settings for optimum personalized control. For instance: Under "Click Adjust," the user can adjust the sensitivity and baseline of the click signal, as well as to adjust the various timing parameters that affect multiple click responsiveness. Under "Pointing Adjust," the user can also select (along with other things) her/his desired cursor sensitivity, speed, and baseline shift.

As cursor and clicking becomes both easier and quicker, our mouse controlled games become increasingly fun to play and easier to master. More importantly as these skills are developed, the user is encouraged to use the CAT where the desktop is entered and third party programs are accessed...like being able to surf the internet!

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Tetris Game




One of the most fun and challenging computer games of all time, Tetris is provided to test and improve your ability to control your cursor and clicking. The task is to completely fill, from the bottom to the top, as many rows as possible using the "box-sets" that appear in different configurations at the top of the screen. As the box-sets appear one-by-one and slowly move downward toward the bottom, you control the left/right position of the Tetris box-set with your Left/Right cursor controlled Brainfinger. You can rotate the box-set with a click and you make the box-set drop to the bottom with a long click.

In the game above, David intentionally completed just one row and partially built up the other rows to illustrate what the game would look like. He was working with the yellow box set in the upper right of the playing field just before the picture was taken. The game is fun to play but be careful. As many players have discovered, Tetris can become addictive!

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Add/Edit Launch Buttons Editor





As basic skills are developed and refined, users can select and run virtually any program on their computer by using the Add/Edit Launch Buttons Editor. This window allows the user to select and name a computer program which appears as a "Launch Button." For example, in the window above, David created a Launch Button for a program he wants to use hands-free and named it EZKeys Scan Windows XP.

The Add/Launch Buttons Editor also allows users to specify how they want to control the mouse and clicking. In the example above, David wanted EZKeys to respond to a right mouse click from the Cyberlink. Thus, he selected Mode 4 (one of five modes of click-control possible).

Users can "map" Cyberlink clicks (both short and long) to virtually any keyboard characters. For example, F11 could be selected for the Wivik program. The left arrow key could be selected for the Clicker-4 program (programs typically used by people with disabilities). Users can also specify if cursor movements are to be "on or off" for the two axes of control. For example, the window above is set for "scan & click-control," so the cursor movement buttons are off.

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Hands-Free Control





Computer Assistance Worth Waiting For:
It undeniably takes time for new users to learn how to use the Cyberlink; but the time invested in learning how to use this software is time well spent. Once the user finds a click-control mode that works consistently, the entire software package can be set to run totally hands-free.

In the hands-free mode, each program window displays an additional menu that is controlled hands-free by your Cyberlink click. In the window shown above, David is now controlling his computer completely hands-free. David selected "Cyber-Switch" which brought up the Cyber-Switch sub menu. Note that "Typing" is highlighted in yellow. If David were to generate a click while "Typing" is highlighted, the Cyberlink will open the "Typing" program.

Users have hands-free access to all the windows of the Cyberlink software including making large and fine-tuning adjustments to all of Brainfinger's settings, mapping, and scanning rates. In fact, anything that can be done with a mouse and a click can be done completely hands-free. By using the CAT Launch window, the user can navigate to previously set launch buttons; start up, and run selected applications, totally hands-free.

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Cyberlink , C.A.T., Cyberlink Actuated Tracker, D.R.E.A.M., Digital Recursive Event Algorithmic Music, Brainfingers, "Bringing the Gift of Hands-Free Access to the World" are trademarks (TM) of Brain Actuated Technologies, Inc.

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