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Z Score - 4 Channel Neurofeedback Software for BrainMaster

  • Real-time neurofeedback training
  • State-of-the-art signal processing
  • Instantly measure client EEG against normal population
  • NeuroGuide normative database analysis
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BTI 533701

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$995.00
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The "Z Score DLL" training system is a software add-on that provides real-time neurofeedback training, using state-of-the-art signal processing, the NeuroGuide normative database analysis, and new computational methods.

4 Channel version.

Z Score 4 Channel Neurofeedback Software for Brainmaster

The "Z Score DLL" training system is a software add-on that provides real-time neurofeedback training, using state-of-the-art signal processing, the NeuroGuide normative database analysis, and new computational methods. 4 Channel version.

BrainMaster Technologies, Inc. and Applied Neuroscience, Inc (ANI) are pleased to announce the availability of a new tool for use in EEG neurofeedback training, assessment, and related work.

The Z Score DLL provides, in real time, a total of 72 real-time values computed on a continuous basis, by the ANI "Z Dll" software. These calculations are performed more than 30 times per second, and provide data useful for training, as well as for assessing the current condition of the trainee, via. their normative EEG scores on any of the 72 components. These consist of Z scores for the following estimators: Absolute Power (2 channels, 8 bands), Relative Power (2 channels,8 bands), Power Ratios (2 channels, 10 ratios), Amplitude Asymmetry(8 bands), Coherence (4 bands), and Phase Difference (8 bands).

Z scores provide an instantaneous measure of how the trainee's EEG compares with a normal population. Scores are based upon the EEG signal, the sensor locations, the age of the trainee, and whether eyes are open or closed. With this information, the Z Score system is able to provide values of 0.0 (normal), positive (above normal) and negative (below normal) scores. A Z Score of -1.0, for example, means the trainee is 1 "standard deviation" below normal for their population. So when a trainee sees an alpha level of8.5, for example, and asks "what does it mean," it is now possible to express this measurement (and 71 others) in terms of comparison to the normative population. This makes it possible to construct protocols that are "aware" of how the trainee fits in, and how their EEG values compare with normative. This is of considerable value in amplitude and power measurements, but is even more essential for coherence, phase, and asymmetry scores. Since it is not possible to easily tell whether a given trainee's coherence is "OK" without a normative population, this system now opens the door to more meaningful, more responsive, and more confident EEG training.

These Z Scores provide, in real time, similar (and consistent) data as provided in a QEEG (e.g. NeuroGuide) when a QEEG is used for normative statistics. The difference is that now these Z scores are available in real time, and are used in tandem with existing clinical neurofeedback software. It thus becomes possible to perform a mini-assessment of selected variables, during the training. Z scores can also be used to create feedback events such as sounds, games, BrainMaster's Flash games, set inhibits or artifact detection, or control other interfaces, events, or devices. Z scores can be processed and used in an unlimited array of possible protocols, using the fact that "0.0"means "normal", "1.0" means "a bit high", "2.0" means "very high", "3.0" means "extremely high", and so on. In other words, once a Z score training protocol is set up for one trainee, it is automatically adapted to other trainees, by entering their age, eyes open/closed condition, and the sensor locations. The normative statistics take care of tailoring the protocol to the individual, so that thresholding and related matters are dealt with automatically.

Using these Z scores, it is possible to design training and assessment protocols using the BrainMaster "Event Wizard" and "Math Wizard" interfaces. These tools allow users to design protocols using a very flexible, text-oriented user interface that includes access to more than 100 built-in BrainMaster training variables (Amplitude, Frequency, Percent Energy, Percent time over threshold, Coherence, Similarity, Phase, Variability, etc),and now the additional 72 Z scores. The Event Wizard allows users to design up to 16 complex events, each of which is a protocol on its own. These events are designed using a "point and select" user interface. All the design of the processing elements is preconfigured. This provides the user with access to literally thousands of possible protocols, at the click of a mouse.

Thus, by training to Z scores instead of (or in addition to) raw scores, it is possible to normalize EEG values in real time, without the need for repeated QEEG recordings. For example, instead of training simply to a coherence metric, one could train to the Z score, and can train within a set of limits, rather than simply a threshold. It is also possible to combine Z scores with any other variables during training, to provide protocols that are complex in design, yet simple to use.

It is possible, for example, to train to coherence or phase scores, and to watch the scores in relation to the normative population. This takes the guesswork out of coherence and related training, and removes the need for repeated QEEG measures, to track the trainee's progress and condition.

The "Math Wizard" further extends the BrainMaster 2.5SE training capabilities by allowing the use of hundreds of expressions and variables in simple equations, providing training flexibility and power. Ratios, logarithms, combinations of variables, yes/no decisions, and so on, are all available via. the Math Wizard. Even Z scores can be used in mathematical expressions, creating new training variables whose scope and power are virtually unlimited. One can, for example, create a training variable that says "go" only when all coherences are within their normal range. Or one that gives special sounds when certain coherences go above (or below) their current levels. Or, in conjunction with a MINI-Q2, one could scan the entire head for brief periods of time, normalizing coherences at each pair, for a full-head training capability. These applications are only the tip of the iceberg, considering the breadth and depth of new protocols that are now possible.

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  1. Joanna

    2018-11-29 14:51:23

    Hi,
    I'm interested in buying the Z Score - 4 Channel Neurofeedback Software for BrainMaster, but I would like to know with which amplifiers this software can be connected.
    Could it work with Micromed, or with OpenBCI?

    Thank You,
    Best Regards,

    Joanna Jarmolowska

    1 answer
    1. Brian Milstead

      2018-12-05 21:42:36

      The 4 channel Brainmaster Z-Score software works with Brainmaster systems only.

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