* Forwarded from "Sci.Skeptic"
* Originally by Roger D. Nelson
* Originally to All
* Originally dated 28 May 1994, 20:01
From: rdnelson@tucson.Princeton.EDU (Roger D. Nelson)
Date: 27 May 94 19:38:16 GMT
Organization: Princeton University
Message-ID: <1994May27.193816.5843@Princeton.EDU>
Newsgroups: sci.skeptic
What is the present status of research on subliminal perception?
What are the conditions required for clean research to determine if
subliminal auditory cueing might have an effect in decision making,
as in selecting one among several alternatives with better than
chance success?
What are the limits of putative subliminal perception -- how faint a
sound can still be effective?
As an example, suppose that some speech cue was given, but attenuated
by insulation and distance so that about 11db actually reaches the
human subject, who is in an environment with a background noise with
broadband frequency spectrum of about 40db. This means that the cue
would not be consciously audible, but the question is whether it could
have a subliminal effect that could yield better than chance guessing.
Those researching auditory subliminal perception claim effects in a
range including a S-N ratio of -35 db. I believe this means (assuming
the claim is true) that the 31 db difference between the transmitted
cue and the background puts the example in the "possible" range for
subliminal transmission, but I don't have the expertise to critique the
calculations, or the subliminal perception claims, or to estimate the
advantage over chance performance. I'd appreciate comments.
--
Roger D. Nelson, Princeton Engineering Anomalies Research (PEAR)
C-131 E-Quad, Princeton University, Princeton, NJ 08544
voice: 609 258-5370 fax: 609 258-1993
email: rdnelson@phoenix.princeton.edu
--
Michael Corbin - via ParaNet node 1:104/422
UUCP: !scicom!paranet!User_Name
INTERNET: Michael.Corbin@p0.f428.n104.z1.FIDONET.ORG
======================================================================
Inquiries regarding ParaNet, or mail directed to Michael Corbin,
should be sent to: mcorbin@paranet.org. Or you can phone voice at
303-429-2654/ Michael Corbin
Director
ParaNet Information Services
|
|
Disclaimer: The file contained in the
box above or displayed in a separate window from a link in the
box above is NOT owned nor implied to
be owned by BeYoND THe iLLuSioN. Most files at BeYoND THe
iLLuSioN are originally from public Bulletin Board Systems
(BBS) which were popular in the days before the Internet or
from gopher, web, and FTP sites from the early days of the
Internet which no longer exist today. Essentially, all files
were acquired from the public domain in one for or another.
However, there have been occasions when copyright protected
material has appeared on BeYoND THe iLLuSIoN without permission
of the copyright holder. In these instances, we have and will
continue to remove the copyright protected file as soon as it
is brought to our attention. This can now be done using our Report Copyright Material form. Fill
out the form, and the webmaster will be notified of the
situation.
There are also times when files found on BeYoND THe iLLuSioN
have a real home somewhere else on the Internet. In these
instances, we will gladly replace the file with a link to its
true home whenever it is brought to our attention. If you know
of the true home of any of these files, you can use our Report Original URL form to bring it yo our
attention.
|
