Wave

(redirected from Theta waves)
Also found in: Dictionary, Thesaurus, Medical, Legal, Encyclopedia.

Wave

A short-term movement that goes against the general trend. For example, if the DJIA rallies on a given trading day but overall is in the midst of a prolonged bear market, the rally is called a wave against the bearish tide.
References in periodicals archive ?
As activity levels at resting conditions are low, greater increases in delta and theta wave activity can be achieved during mental work, corresponding to better performance.
Theta waves, generated by the limbic system or the feeling level, are faster than first-line delta waves.
Gamma waves are present during sound sleep; theta waves indicate dozing or sleeping; beta waves are present during an awake, excited state and alpha waves signify an awake, relaxed state.