The twinship: a paradigm towards separation and integration

The twinship paradigm describes a pattern of dyadic, quasi-object relationship, the purpose of which is to facilitate differentiation, separation, and integration. Twinships can arise at any point in the life cycle, when the self faces a developmental impasse. The twin functions as an alter-ego. Twin selection is based on two principles, namely, sympathetic resonance of experience, and difference. The two essentials of the resonance are similarity of developmental task, and similarity of obstacles to its accomplishment. The essentials of the difference lie in the fact that the twin is seen either as an idealized alter-ego, or as the carrier of the self's intolerable aspects. Twinships can collapse, in the presence of massive investment in the archaic symbiotic bond. They then lose their transitional status, and can degenerate into a fixation on a separation-impeding dyadic mode of relating.