<div dir="ltr"><div class="gmail_default" style="font-family:comic sans ms,sans-serif;font-size:small;color:#000000"><span style="color:rgb(34,34,34);font-family:Arial,Helvetica,sans-serif;font-size:large">If you used EEG you'd certainly be measuring something objectively, but not something anyone would intuitively think had anything to do with</span><span class="gmail_default" style="color:rgb(34,34,34);font-size:large;font-family:arial,helvetica,sans-serif"> </span><span style="color:rgb(34,34,34);font-family:Arial,Helvetica,sans-serif;font-size:large">consciousness John wrote</span><br></div><div class="gmail_default" style="font-family:comic sans ms,sans-serif;font-size:small;color:#000000"><span style="color:rgb(34,34,34);font-family:Arial,Helvetica,sans-serif;font-size:large"><br></span></div><div class="gmail_default" style="font-size:small;color:rgb(0,0,0)"><span style="color:rgb(34,34,34);font-size:large"><font face="comic sans ms, sans-serif">Are you familiar with the stages of sleep? And the eeg patterns of waking life? A person in any of the four sleep stages is not conscious by any definition. And their unconsciousness varies: the measure is how much stimulation it takes to wake them up. The four stages differ. And the waking eeg patterns correlate very highly with ability to process information. So in other words, you can tell how awake or asleep a person is from just looking at their eeg patterns. You can tell that their brain processed stimuli, or not, such as sounds, that you presented. I think the little squiggly lines tell us a lot about consciousness, unconsciousness and indeed other things about the brain, just as the little squiggly lines on an ekg chart tell us about what the heart is doing. For one example: an eeg showing alpha waves tell us that the person is awake, relaxed, and not thinking about anything is particular,esp. not something stimulating.</font></span></div><div class="gmail_default" style="font-size:small;color:rgb(0,0,0)"><span style="color:rgb(34,34,34);font-size:large"><font face="comic sans ms, sans-serif"><br></font></span></div><div class="gmail_default" style="font-size:small;color:rgb(0,0,0)"><span style="color:rgb(34,34,34);font-size:large"><font face="comic sans ms, sans-serif">I think it is indisputable that the eeg tells us about consciousness, as defined in a common sense kind of way. Other words that could be used here: awake, alert, aware............</font></span></div><div class="gmail_default" style="font-size:small;color:rgb(0,0,0)"><span style="color:rgb(34,34,34);font-size:large"><font face="comic sans ms, sans-serif"><br></font></span></div><div class="gmail_default" style="font-size:small;color:rgb(0,0,0)"><span style="color:rgb(34,34,34);font-size:large"><font face="comic sans ms, sans-serif">bill w</font></span></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Feb 8, 2020 at 4:54 PM John Clark via extropy-chat <<a href="mailto:extropy-chat@lists.extropy.org">extropy-chat@lists.extropy.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><span style="font-family:Arial,Helvetica,sans-serif">On Sat, Feb 8, 2020 at 5:34 PM William Flynn Wallace via extropy-chat <<a href="mailto:extropy-chat@lists.extropy.org" target="_blank">extropy-chat@lists.extropy.org</a>> wrote:</span><br></div></div><div class="gmail_quote"><div dir="ltr" class="gmail_attr"><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div style="font-family:"comic sans ms",sans-serif;font-size:small;color:rgb(0,0,0)"><span class="gmail_default" style="font-family:arial,helvetica,sans-serif">> </span>John, you have entirely missed the point. I said the measurement would not tell you what consciousness is, but simply a way to measure it objectively.</div></div></blockquote><div><br></div><font size="4">If you used EEG you'd certainly be measuring something objectively, but not something anyone would intuitively think had anything to do with<span class="gmail_default" style="font-family:arial,helvetica,sans-serif"> </span>consciousness.</font><br><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex" class="gmail_quote"><i><span class="gmail_default" style="font-family:arial,helvetica,sans-serif">> </span>If the measurements do not correlate with what we think of with common sense as consciousness, then we choose another measurement. </i></blockquote><div><br></div><div class="gmail_default"><font face="arial, helvetica, sans-serif"></font><font size="4">I don't believe any objective measurement would work for consciousness unless you make an assumption of the very thing you were trying to prove.</font></div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div style="font-family:"comic sans ms",sans-serif;font-size:small;color:rgb(0,0,0)"> <span class="gmail_default" style="font-family:arial,helvetica,sans-serif">> </span>Without that there is no hope of making consciousness a scientific entity.</div></div></blockquote><div><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><font size="4">I agree, and that's why, unlike intelligence, c<span style="font-family:Arial,Helvetica,sans-serif">onsciousness will never be a scientific entity.</span></font></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><span style="font-family:Arial,Helvetica,sans-serif"><font size="4"><br></font></span></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><span style="font-family:Arial,Helvetica,sans-serif"><font size="4">John K Clark</font></span></div></div></div>
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