Rhythmicity is a word that describes the quality of being rhythmic or having a regular pattern. It refers to something that is organized and repeated in a predictable way, like the beat of a drum or the waves of the ocean. Full definition
Read about more studies on circadian rhythmicity in zebrafish in this other case about clock genes. (nolduszebrafish.com)
Human EEG recordings show clear theta rhythmicity in some situations, but because of the technical difficulties, it has been difficult to tell whether these signals have any relationship with the hippocampal theta signals recorded from other species. (en.wikipedia.org)
The generation of the rhythm is dependent on the medial septal area: this area projects to all of the regions that show theta rhythmicity, and destruction of it eliminates theta throughout the brain (Stewart & Fox, 1990). (en.wikipedia.org)