“…Many contemporary psychoanalytic theorists base their theories of change on this equilibration model (Bacal, 1985;Bäsch, 1984;Beebe & Lachmann, 1994;Blatt & Behrens, 1987;Doφat & Miller, 1992;Epstein, 1994;Horowitz, 1991;Kohut, 1971;Loewald, I960;Lichtenberg, Uch mann & Fosshage, 1992;Sander, 1983;Sandler & Sandler, 1978;Stern, 1985;Weiss & Samp.son, 1986;Wolf, 1991). Two of the more popular variations on this model of change are the disruption-restoration thesis, based on optimal frustration, and the optimal responsiveness paradigm, based on the premise that providing what the patient needs promotes development and mental reorganization.…”