When you turn on the unit, during the first second one green light will be lit indicating which one of eight sensitivity levels the unit is set to.  The LED array then begins to display a distinctive rhythmic light and sound sequence for 10 seconds.  The unit is automatically adjusting itself.  Because your relative skin resistance varies from session to session, ThoughtStream automatically readjusts itself each time you start.  This ensures accurate results with every use. (See Feedback and Skin Resistance:  A Relative Measure)

Once the lights change to solid red, AND you hear a steady tone through the headphones you are beginning your session.   As you become more relaxed the lights will gradually change in color from red to orange to yellow to green and the tone will become deeper.  When you have reached all green the unit will automatically recalibrate itself to the next sensitivity level   (See Section II for more information).

Manual sensitivity level adjustment

When the unit is first turned on the current sensitivity level is indicated for one second as a single green light.

To adjust the level:

Press the START/STOP button once within 10 seconds of turning the unit on.  You will again see one green light displayed.

Set the level by adjusting the top right-hand dial.

After setting the new sensitivity level, press the START/STOP button AGAIN to start your session.

Manually adjust the sensitivity level during a session:   Press the START/STOP button two times to enter the sensitivity level adjustment mode, then follow the steps outlined above.

Ending A Session

Before you remove the probe press the START/STOP button.  Now you will see the eight lights are blinking about once per second.  It is a display of the lowest level of relaxation you attained during that session.  You will also notice one light blinking alternately.  This indicates the lowest sensitivity level reached.  You can now go to the chart to see what percentage of change you attained.

If you are keeping track of your progress with ThoughtStream, you'll want to note the deepest level of relaxation achieved in each session.

NOTE:  During first use set the first session set the sensitivity level to 8, the easiest, until you become familiar with the unit.

Auto Shut-0ff Feature

There are three instances in which ThoughtStream will automatically shut itself off.

1. If there is an error indication for more than 10 seconds.  (This can occur if the sensors lose contact with your skin or the wire pulls lose from ThoughtStream).
2. If, while you are in the sensitivity adjust mode, you don't do anything for one minute.
3. The battery is low.