From: stgprao@st.unocal.COM (Richard Ottolini)
Subject: Re: SCI: Direct Neural-Electronic Interfacing
Date: Mon, 14 Dec 92 08:44:55 PST
Message-ID: <1992Dec14.164447.4047@unocal.com>
Organization: Unocal Corporation


In article <1992Dec13.030243.13676@u.washington.edu> daver@sunspot.ssl.berkeley.edu (David Ray) writes:
>
>I read somewhere recently that a Stanford professor has been researching
>the use of EEG signals to control a 2-d cursor (mouse). It uses a 
>conventional EEG-style sensor array (skin electrodes -- no implants)
>and he claims to get over 60% accuracy. That is, "think" of where you
>you want the cursor to go, and it goes there. No moving parts.

I can't say whether it applies to this particular setup,
but some of the simpler so-called EEG sensing setups have turned out
to be reading head muscle movements instead.  A few years ago some
organization had tested so-called brainwave measuring machines for
meditation enhancement and discovered this fact.  Turned out to be
detecting eye or jaw muscle contractions instead.

Then again, an electrode cap may be a more cost effective eye movement
tracker than some of the alternatives.