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Theta-down Highway

Theta-down Highway

Theta-down Highway looks like Highways, but the green or blue bar is totally determined by the inhibit signals with no input from the reward band. The purple box and green/blue bar are tightly coupled. The reward bar is the inverse of the inhibit signals (mostly low frequency). Some special setups are required for this game. The reward threshold (beta or SMR) should be set at about 1 microvolt so that you are over threshold 100% of the time (so feedback is not dependent on it). Set the high frequency inhibit as usual. If the client tenses up, he should be over threshold. The low frequency (theta) inhibit is set so that the client is above threshold about 50%, so beeping will occur about half the time. Either a standard filter or the special filters (2-13 Hz inhibit) can be used. The percentages are set a little different typically, because rather than the wide bar meaning beta or SMR, the wide band is the inverse of theta. That is, if you watch the purple box (theta) it will be identical to the wide band painting highway, except inverse. When theta goes down, the purple box gets smaller, and the wide bar gets wider. The theory is that by positively reinforcing decreased amplitude in the theta band in both the purple and the wide bar - the client gets a possible reward for inhibiting theta.

The therapist K key generates a reward display