In the first through the ninth Urantia Foundation printings, "associater" was used here. While the meaning of "associater" is clear and that variant is found in a reference dating to 1626 in the QED, it was probably inserted in error because the common form, "associator", is used in all other occurrences in the Urantia Papers. The original spelling may have been caused by a typist's inadvertent parallelism with "sorter."
P1480:1, 133:7.9
Neither is the human self merely the sum of the successive states of consciousness.
Without the effective functioning of a consciousness sorter and associater
there would not exist sufficient unity to warrant the designation of a selfhood.
Such an ununified mind could hardly attain conscious levels of human status.
If the associations of consciousness were just an accident, the minds of all
men would then exhibit the uncontrolled and random associations of certain
phases of mental madness.