P-120 already provides an independent multilayer profile: it explores what is associated with attraction, how desire is maintained or changes over time, and how intimacy, touch and bodily response are organised.
Not every important question belongs inside one endless test. P-120 therefore develops a separate system of optional research layers around the core profile. Each module examines its own domain and may exist independently of the others.
The Extended Research System does not “improve” or recalculate the P-120 result. It is a second research layer: a participant may choose one additional module, several of them, or none.
Each branch has its own construct boundary. It should not duplicate the core P-120 or a neighbouring module, and it does not create an overall Extended Total.
Understanding one’s own desire is one thing. Expressing it so that another person can actually understand is another. COM studies preference expression, feedback, mismatch, negotiation and the ability to return to conversation after awkwardness or tension.
Two people may want the same thing while moving toward it for very different internal reasons. MOT studies not “what is arousing”, but why a person chooses erotically meaningful intimacy: which expected experiences, relational meanings and states stand behind the decision to enter contact.
Desire is not directed only outward. A person also experiences themselves: how easily desire can be acknowledged, whether pleasure feels legitimate, whether agency is retained, how self-consciousness is tolerated, and whether sexuality becomes a constant self-evaluation.
Intimacy does not exist in a vacuum. LIFE is being designed as an outcome/spillover layer that studies how intimate states coexist and change alongside emotional tone, subjective vitality, sleep, cognitive carryover, engagement in work or study, meaning and slower life anchors.
A broad profile can show the overall architecture of arousal and bodily response. Real experience, however, may depend on much finer distinctions: intensity, sensory configuration, distribution of control, boundaries between fantasy and experience, and how much a person knows about their preferences from real situations.
RPE-MOD is being developed as an adaptive branch. The system should not ask everyone the same long list of sensitive questions. Relevant directions open only when they are actually applicable to the respondent.
Each additional module may have research value on its own. But P-120 is designed as a system in which relationships between independent coordinates can become especially informative.
P-72 × MOTWhat activates me — and why do I choose intimacy?
P-72D × COMHow does desire change over time — and can I communicate the need for change?
AO × MOTHow do regulation patterns coexist with motives for contact?
SOMA × SELFWhat does the body notice — and how does the person evaluate their own bodily response?
RPE × COMHow precisely does a person know their preferences — and can they express them?
RPE × LIFEAre fit or mismatch in specific preferences associated with downstream states?
An individual profile shows how one system is organised. Additional modules can examine it more precisely. But once data from two people are available, the question itself changes.