An Experiment on Auditory Evoked Potential at Imaginary Measurement

Von Neumann's theory of measurement was tested for the crisis of
realism founded on the break down of Bell's inequality. The theory
asserts that contraction of a wave packet in quantum mechanics by
measurement is caused by out-of-brain consciousness. Imaginary
measurement was carried out for the macro-system superposing two
different states. The auditory evoked potentials of the measurer were
compared between the time of the realization and non-realization of the imaginary measurement. The result showed the statistically significant difference in the peak amplitudes of P300s which appear in accompaniment to discrimination tasks. The explanation of this
significant difference may be difficult from the viewpoint that the
consciousness of the measurer does not influence the contraction of
wave packets.