ABSTRACT
This chapter provides an account of the key dynamics of resonance, mirroring, reciprocity (exchange), amplification and condensation drawn from Foulkes and Anthony. In physics resonance is the oscillation found in solid bodies that produces higher amplitude at optimised frequencies. Oscillation in sympathy between bodies creates sympathetic resonance. Modern physics involves the study of atomic, planetary, mechanical, electrical and magnetic resonance and acoustic resonance, which Foulkes applied to group situations in the quotation above to capture by analogy with music, the patterning form taken by a resonance of feeling or identity between or amongst people. For puzzling reasons the term reciprocity is hardly found in group analysis. Mirroring can now be re-cast in the more contemporary language of process dynamics. The chapter describes condenser and amplification together on discovering through student supervision that they can be fruitfully applied as a pair of terms to capture the emotional range involved in all the other process dynamics.
