one most suited to solving the existential problems that are present in their environment. It is also possible to have non-parallel situations, such as a person in an environment with E level problems who has developed the Q neuronal system but not yet the R. This person will often find the world confusing and stressful. On the other hand, a person who is centralized at FS but finds themself in an environment of primarily E problems will be frustrated for other reasons, such as everyone around them seeming to focus on the "wrong" problems and solutions. Old systems remain available even after new systems are developed, and the level at which a person is centralized can move forwards or backwards. A person centralized at ER who feels the need for more community and spirit can, if conditions are right, move up to FS. Or they might shift back to the familiar DQ at which they were centralized in the past. For most people, multiple systems will be available, although one may dominate. The six upon six hypothesis For most of Graves's original period of research, GT was the latest state to appear. Near the end, a small number of subjects expressing GT in his study shifted to a new state, HU. This emergence, seven or so years into his experiment, of a rare new system is what prompted Graves to view the set of states as open-ended, with no final, ultimate state existing. Additionally, Graves noted a remarkable similarity between the HU and BO systems, leading him to re-evaluate GT, finding it to have similarities with AN. From this observation, he hypothesized that there are six fundamental coping systems, AN through FS. Beyond FS the cycle repeats with additional neurobiological systems adding much more development on the fundamental states, with the result that "motivations are recapitulated in a much vaster conceptual context." In recognition of this, he began using primes to mark the higher-order systems, renaming GT to A'N' and HU to B'O'. While Graves viewed this hypothesis as unproven, he felt that the data demanded its consideration. Conditions for change A key part of E-C theory is the change process by which a person moves from one level of existence to the next. There are six conditions for change in this process: Potential Solutions of existing problems Feeling of dissonance Gaining of insights Removal of barriers Opportunity to consolidate