Guest guest Posted April 22, 2008 Report Share Posted April 22, 2008 Under what circumstances would I ever check " Reverse Ratio Output if Increase is not set " in a Threshold? Increase is often " not set " so when is it appropriate to use this option? Thanks, Margarette Quote Link to comment Share on other sites More sharing options...
Guest guest Posted April 23, 2008 Report Share Posted April 23, 2008 Margarette, The Ratio output from the BioExplorer threshold reports the ratio of the actual value divided by the target value. So, for example, if the target is set for 10 microvolts and the actual reading is 12 microvolts, the ratio output would give 1.2 or 120% of the target. Using a standard Pass/Fail output might, for example, make PacMan move or stop moving, but whether the client was barely over or WAY over the target, PacMan would move at the same speed. Using a Ratio output, PacMan could move faster or slower, depending on how far above the target the brain was. All this would work fine if you were training to increase something. But often we are training to decrease a frequency's activity. For example, same target of 10 uV, the client is barely under it at 9 (9/10=90%) or WAY under it at 5 (5/10=50%), would result in the PacMan actually going SLOWER when the client was doing better. In that case, you might choose to Reverse the ratio output. By doing so, the 50% (5/10) would be changed to 200% (10/5), and the feedback would make more sense. For those who use Server object to output data to a game such as Inner Tube, you can change the output at the Ratio object itself or you can reverse it in the game itself. Pete Under what circumstances would I ever check " Reverse Ratio Output if Increase is not set " in a Threshold? Increase is often " not set " so when is it appropriate to use this option? ..-- Van Deusenpvdtlc@...http://www.brain-trainer.com 305/433-3160The Learning Curve, Inc. Quote Link to comment Share on other sites More sharing options...
Guest guest Posted April 23, 2008 Report Share Posted April 23, 2008 Margarette, The Ratio output from the BioExplorer threshold reports the ratio of the actual value divided by the target value. So, for example, if the target is set for 10 microvolts and the actual reading is 12 microvolts, the ratio output would give 1.2 or 120% of the target. Using a standard Pass/Fail output might, for example, make PacMan move or stop moving, but whether the client was barely over or WAY over the target, PacMan would move at the same speed. Using a Ratio output, PacMan could move faster or slower, depending on how far above the target the brain was. All this would work fine if you were training to increase something. But often we are training to decrease a frequency's activity. For example, same target of 10 uV, the client is barely under it at 9 (9/10=90%) or WAY under it at 5 (5/10=50%), would result in the PacMan actually going SLOWER when the client was doing better. In that case, you might choose to Reverse the ratio output. By doing so, the 50% (5/10) would be changed to 200% (10/5), and the feedback would make more sense. For those who use Server object to output data to a game such as Inner Tube, you can change the output at the Ratio object itself or you can reverse it in the game itself. Pete Under what circumstances would I ever check " Reverse Ratio Output if Increase is not set " in a Threshold? Increase is often " not set " so when is it appropriate to use this option? ..-- Van Deusenpvdtlc@...http://www.brain-trainer.com 305/433-3160The Learning Curve, Inc. Quote Link to comment Share on other sites More sharing options...
Guest guest Posted April 24, 2008 Report Share Posted April 24, 2008 aha! This explains it well! You figured out why I was asking too - I was trying it for the game controls and it was working but I didn't know exactly why. Thanks, Margarette > > > Under what circumstances would I ever check " Reverse Ratio Output if > > Increase is not set " in a Threshold? > > > > Increase is often " not set " so when is it appropriate to use this > > option? > > . > > > > > -- > Van Deusen > pvdtlc@... > http://www.brain-trainer.com > 305/433-3160 > The Learning Curve, Inc. > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted April 24, 2008 Report Share Posted April 24, 2008 aha! This explains it well! You figured out why I was asking too - I was trying it for the game controls and it was working but I didn't know exactly why. Thanks, Margarette > > > Under what circumstances would I ever check " Reverse Ratio Output if > > Increase is not set " in a Threshold? > > > > Increase is often " not set " so when is it appropriate to use this > > option? > > . > > > > > -- > Van Deusen > pvdtlc@... > http://www.brain-trainer.com > 305/433-3160 > The Learning Curve, Inc. > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted April 24, 2008 Report Share Posted April 24, 2008 aha! This explains it well! You figured out why I was asking too - I was trying it for the game controls and it was working but I didn't know exactly why. Thanks, Margarette > > > Under what circumstances would I ever check " Reverse Ratio Output if > > Increase is not set " in a Threshold? > > > > Increase is often " not set " so when is it appropriate to use this > > option? > > . > > > > > -- > Van Deusen > pvdtlc@... > http://www.brain-trainer.com > 305/433-3160 > The Learning Curve, Inc. > Quote Link to comment Share on other sites More sharing options...
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