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Voluntary alteration of visual evoked potentials

Voluntary alteration of visual evoked potentials Fifteen normal adults had pattern‐shift visual evoked potentials (PSVEPs) using monocular checkerboard pattern reversal. Subjects were instructed to concentrate on the pattern in the first set of trals and then to avoid perceiving it in the second set. Direct, continuous visual observation ensured that the eye remained open and fixed on the pattern. Nonetheless, a third of the subjects could spontaneously alter or obliterate the PSVEP using several maneuvers, including meditation, daydreaming, and convergence. Several could produce shifts in apparent PSVEP latency. With explicit instruction, most subjects could learn to alter their PSVEP by maneuvers that are inapparent even to an observant technician. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annals of Neurology Wiley

Voluntary alteration of visual evoked potentials

Annals of Neurology , Volume 12 (5) – Nov 1, 1982

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Publisher
Wiley
Copyright
Copyright © 1982 American Neurological Association
ISSN
0364-5134
eISSN
1531-8249
DOI
10.1002/ana.410120511
pmid
7181452
Publisher site
See Article on Publisher Site

Abstract

Fifteen normal adults had pattern‐shift visual evoked potentials (PSVEPs) using monocular checkerboard pattern reversal. Subjects were instructed to concentrate on the pattern in the first set of trals and then to avoid perceiving it in the second set. Direct, continuous visual observation ensured that the eye remained open and fixed on the pattern. Nonetheless, a third of the subjects could spontaneously alter or obliterate the PSVEP using several maneuvers, including meditation, daydreaming, and convergence. Several could produce shifts in apparent PSVEP latency. With explicit instruction, most subjects could learn to alter their PSVEP by maneuvers that are inapparent even to an observant technician.

Journal

Annals of NeurologyWiley

Published: Nov 1, 1982

References

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