But it is the work of Cameron, and his recipe for disturbing “the time-space-image,” that forms the core of the Kubark formula. The manual describes several of the techniques that were honed to depattern patients in the basement of the Allan Memorial Institute: “The principle is that sessions should be so planned as to disrupt the source’s sense of chronological order … . Some interrogatees can be regressed by persistent manipulation of time, by retarding and advancing clocks and serving meals at odd times—ten minutes or ten hours after the last food was given. Day and night are jumbled.”