Does consciousness really collapse the wave function? A possible objective biophysical resolution of the measurement problem
arXiv Preprint Archive September 6, 2005 Fred H. Thaheld
An analysis of von Neumann, London and Bauer, and Wigner's theories on consciousness collapsing the wave function suggests they may have erred in calling for reduction of superposition states in the brain. Wigner later adopted a simpler objective position, expanded by Shimony, which offers a resolution. The argument holds that the wave function of superposed photon states is objectively changed within the eye's architecture: first a continuous linear process for most photons, then a discontinuous nonlinear collapse for any remaining, ensuring only final measured information reaches the brain. A future experiment may resolve the measurement problem and test if quantum mechanics' linearity is violated by perception.