  Von Neumann's psycho-physical parallelism requires the existence of an
interaction between subjective experiences and material systems. A hypothesis
is proposed that amends physics in a way that connects subjective states with
physical states, and a general model of the interaction is provided. A specific
example shows how the theory applies to pain consciousness. The implications
concerning quantum mechanical state creation and reduction are discussed, and
some mechanisms are suggested to seed the process. An experiment that tests the
hypothesis is described elsewhere. Key Words: von Neumann, psycho-physical,
consciousness, state reduction, state collapse, macroscopic superpositions,
conscious observer.
