Dean Radin, Leena Michel, James Johnston, and Arnaud Delorme (2013). Psychophysical interactions with a double-slit interference pattern. Physics Essays, Volume 26: p. 553-566
This is the third publication describing our ongoing research program on mind-matter interactions. This line of research focuses on experimentally testing John von Neumann's (and others) interpretation of the quantum measurement problem (QMP). The Stanford Encyclopedia of Philosophy has a good description of the QMP. So far we've conducted 15 experiments and have reported the results of 10 of them. Overall the evidence is consistent with von Neumann's proposal that consciousness is involved in the behavior of quantum systems. Note that consistency doesn't necessarily mean that von Neumann's approach is the only valid interpretation.
Previously reported experiments suggested that interference patterns generated by a
double-slit optical system were perturbed by a psychophysical (i.e.,
mind–matter) interaction. Three new experiments were conducted to
further investigate this phenomenon. The first study consisted of 50
half-hour test sessions where participants concentrated their
attention-toward or –away from a double-slit system located 3 meters away. The
spectral magnitude and phase associated with the double-slit component
of the interference pattern were compared between the two attention
conditions, and the combined results provided evidence for an
interaction. One hundred control sessions using the same equipment, protocol and
analysis, but without participants present, showed no effect.
A Fraunhofer diffraction model was used to explore various
interpretations of this outcome. This analysis suggested that the
distribution of light between the two slits and the horizontal stability
of the laser beam were the principle components of the optical system
that were perturbed.
The second experiment used a duplicate double-slit
system and similar test protocol, but it was conducted over the Internet
by streaming data to participants’ web browsers. Some 685 people from
six continents contributed 2,089 experimental sessions. Results were [significantly] similar to those observed in the first experiment, but smaller in
Data from 2,303 control sessions, conducted automatically every 2 hours
using the same equipment but without observers showed no effect.
Distance between participants and the optical system, ranging from 1 km
to 18,000 km, showed no correlation with experimental effect size.
third experiment used a newly designed double-slit system, a revised
test protocol, and a simpler method of statistical analysis. Twenty
sessions contributed by 10 participants successfully replicated the
interaction effect observed in the first two studies.
The article may be downloaded by clicking here.