Does geomagnetic activity effect extrasensory perception?

Data from two kinds of experiments for extrasensory perception were retrospectively analysed for possible relationships with local geomagnetic activity (K-index). ESP scores from 70 Ganzfeld sessions (telepathy-clairvoyance) were found significantly related to high geomagnetic activity of the day pr...

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Bibliographic Details
Published in:Personality and individual differences 1987, Vol.8 (5), p.745-747
Main Authors: Haraldsson, Erlendur, Gissurarson, Loftur R.
Format: Article
Language:English
Subjects:
Biological and medical sciences
Fundamental and applied biological sciences. Psychology
Parapsychology
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
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Summary:Data from two kinds of experiments for extrasensory perception were retrospectively analysed for possible relationships with local geomagnetic activity (K-index). ESP scores from 70 Ganzfeld sessions (telepathy-clairvoyance) were found significantly related to high geomagnetic activity of the day prior to the experimental sessions (rs = 0.23, n = 70, P = 0.03, one-tailed) but not to the geomagnetic activity of day of the sessions (rs = 0.03, n = 70, n.s.). The same relationship was found in experiments which consisted mostly of 80 trials clairvoyance computer games per subject (rs = 0.10, n = 269, P = 0.05, one-tailed). The results partially confirm Persinger's earlier findings on three independent samples, i.e. that spontaneous paranormal experience tend to occur on a day of low geomagnetic activity which is preceded by days of high geomagnetic activity.
ISSN:0191-8869
1873-3549
DOI:10.1016/0191-8869(87)90076-6