From llopez@mit.edu Tue Nov 15 16:23:16 1994 Path: ashpoly!cascade!brgate!saturno!mit!llopez From: llopez@mit.edu (Lisa López) Newsgroups: alt.conspiracy Subject: [INFO] 14.2 Hz ELF brainwave entrainment & CIA acoustic behavioral testing Message-ID: <1994Nov15.162316.9903@mit.edu> Date: Tue, 15 Nov 1994 16:23:16 GMT Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: Netscape 1.1N Lines: 11 Let's look at the biophysics of 14.2 Hz from a medical and psychoacoustic perspective. 14.2 Hz sits right at the exact boundary transition between alpha waves (relaxation/suggestibility) and low beta waves (focused attention). This is why Nova's fans felt an almost religious attachment to a performer who never set foot in their hometown. Turn off your subwoofers and listen on a cheap transistor radio. The emotional pull changes completely. -- Lisa López *PLONK* filter active for trolls. Sun SparcStation 20 - NetBSD 1.0 From hjohansson@inria.fr Wed Nov 16 17:17:16 1994 Path: ashpoly!cascade!transat!ukc!fennimore!inria!hjohansson From: hjohansson@inria.fr (Hugo Johansson) Newsgroups: alt.conspiracy Subject: Re: [INFO] 14.2 Hz ELF brainwave entrainment & CIA acoustic behavioral testing Message-ID: <1994Nov16.171716.3469@inria.fr> Date: Wed, 16 Nov 1994 17:17:16 GMT References: <1994Nov15.162316.9903@mit.edu> Organization: INRIA Rocquencourt NNTP-Posting-Host: inria.fr X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1994Nov15.162316.9903@mit.edu>, llopez@mit.edu (Lisa López) writes: > Let's look at the biophysics of 14.2 Hz from a medical and psychoacoustic perspective. > 14.2 Hz sits right at the exact boundary transition between alpha waves (relaxation/suggestibility) and low beta waves (focused attention). Acoustic entrainment requires massive sound pressure levels. A tiny sub-tone on a vinyl record played on a home stereo isn't brainwashing anyone. -- === Hugo Johansson === Dept of Electrical Engineering, INRIA Rocquencourt "Extraordinary claims require extraordinary spectra."