Conjecture: The inner sense of time is associated with the Primary Processor:

(From: Reppert SM, Weaver DR. 2001. Molecular analysis of mammalian circadian rhythms. Annu. Rev. Physiol. 2001. 63:647-76.)

"In mammals, a master circadian 'clock' resides in the superchiasmatic nuclei (SCN) of the anterior hypothalamus. The SCN clock is composed of multiple, single-cell circadian oscillators, which, when synchronized, generate coordinated circadian outputs that regulate overt rhythms..."

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