<div style="FONT-FAMILY: arial; COLOR: black; FONT-SIZE: 10pt"><FONT color=black face=arial></FONT><SPAN style="DISPLAY: inline-block" contentEditable=false></SPAN>I found out last year during signal testing in my wrists, that average signal traverse through the wrist is 4 ms. Anything above that means your response to stimulus is slow and you are probably going to need surgery to attempt a repair. My resposne was in the teens in both wrists. My repairs were successful</div>
<div style="FONT-FAMILY: arial; COLOR: black; FONT-SIZE: 10pt"> </div>
<div style="FONT-FAMILY: arial; COLOR: black; FONT-SIZE: 10pt">I also asked what the response time is for the signal having to travel from the head to the wrist....that time is apparently about 10X the normal response time through the wrist, or around 50 ms.</div>
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<div style="FONT-FAMILY: arial; COLOR: black; FONT-SIZE: 10pt">That's only half of the sequence of events, the response half. There is also the visual stimulus half that creates the response half. I could easily see the whole sequence taking 100 ms or more before your eye perceives, brain processes, and fingers react. </div>
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<div style="FONT-FAMILY: arial; COLOR: black; FONT-SIZE: 10pt">FWIW2U</div>
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<div style="FONT-FAMILY: arial; COLOR: black; FONT-SIZE: 10pt">MattK</div>
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-----Original Message-----<br>
From: Dave <DaveL322@comcast.net><br>
To: 'General pattern discussion' <nsrca-discussion@lists.nsrca.org><br>
Sent: Sat, Jul 10, 2010 9:04 am<br>
Subject: Re: [NSRCA-discussion] S.bus<br>
<br>
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<div class=MsoNormal><FONT color=navy size=2 face=Arial><SPAN style="FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt">I believe the </SPAN></FONT>NSRCAAFAPSAHITIRCAF has been directed to join NASA in their efforts of cultural unification…….<FONT color=navy size=2 face=Arial><SPAN style="FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt"></SPAN></FONT></div>
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<div class=MsoNormal><B><FONT size=2 face=Tahoma><SPAN style="FONT-FAMILY: Tahoma; FONT-SIZE: 10pt; FONT-WEIGHT: bold">From:</SPAN></FONT></B><FONT size=2 face=Tahoma><SPAN style="FONT-FAMILY: Tahoma; FONT-SIZE: 10pt"> <A href="mailto:nsrca-discussion-bounces@lists.nsrca.org">nsrca-discussion-bounces@lists.nsrca.org</A> [<A href="mailto:nsrca-discussion-bounces@lists.nsrca.org?">mailto:nsrca-discussion-bounces@lists.nsrca.org</A>] <B><SPAN style="FONT-WEIGHT: bold">On Behalf Of </SPAN></B>Keith Hoard<br>
<B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Friday, July 09, 2010 12:44 PM<br>
<B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> General pattern discussion<br>
<B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [NSRCA-discussion] S.bus</SPAN></FONT></div>
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<div style="MARGIN-BOTTOM: 12pt" class=MsoNormal><FONT size=3 face="Times New Roman"><SPAN style="FONT-SIZE: 12pt">Sounds like a mission for the NSRCAAFAPSAHITIRCAF (NSRCA Academy For Advanced Pattern Studies And Human Interfaces To Improve Radio Controlled Aerobatic Flight). <br>
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<div class=MsoNormal><FONT size=3 face="Times New Roman"><SPAN style="FONT-SIZE: 12pt">On Sat, Jul 10, 2010 at 12:35 AM, Phil Spelt <<A href="mailto:chuenkan@comcast.net">chuenkan@comcast.net</A>> wrote:</SPAN></FONT></div>
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<div class=MsoNormal><FONT size=3 face="Times New Roman"><SPAN style="FONT-SIZE: 12pt">Bill, that is an empirical question -- one that could be tested in the lab. However, I am convinced that your implication is correct: the difference between 7 ms and 14ms is probably not detectable by anyone. The fascinating question is, where is the mean cut-off time between non-detectable and detectable delays...<br>
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Anyone got a coupl'a mil $$ so I can but the equipment and conduct the tests??? lol<br>
<br>
At 12:00 PM 7/9/2010, you wrote:<br>
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</SPAN></FONT></div>
<div class=MsoNormal><FONT size=3 face="Times New Roman"><SPAN style="FONT-SIZE: 12pt">The next question then becomes, at what level can we perceive a difference in performance? In other words, can we really perceive a difference between 7ms and 14ms latency? I will not argue that large differences are readily perceptible (25 versus 250), but what about smaller differences. How large of a difference does there need to be and is there a threshold below which it does not really matter?<br>
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Phil Spelt wrote: <br>
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</SPAN></FONT></div>
<div class=MsoNormal><FONT size=3 face="Times New Roman"><SPAN style="FONT-SIZE: 12pt">As a Psychologist, I agree with you, Bill. As an R/C pattern jockey, I will only point out that the electronic latency is ADDED TO the wet-ware latency...<br>
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Thus, your last statement is true, indeed!<br>
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At 11:19 AM 7/9/2010, you wrote:<br>
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</SPAN></FONT></div>
<div class=MsoNormal><FONT size=3 face="Times New Roman"><SPAN style="FONT-SIZE: 12pt">I am amused by discussions about latency. We have long discussions about the perceived advantages of single digit differences in system latency while ignoring the fact that the average human reaction time (call it organic latency) is around 250 milliseconds. <br>
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I guess you can argue that since we are inherently so slow we need all the electronic help we can get!! <br>
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Jon Lowe wrote: </SPAN></FONT></div>
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<div class=MsoNormal><FONT size=2 face=Arial><SPAN style="FONT-FAMILY: Arial; FONT-SIZE: 10pt">There is a great article on latency here: <br>
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<A href="http://www.rcmodelreviews.com/what_is_latency.shtml" target=_blank>http://www.rcmodelreviews.com/what_is_latency.shtml</A><br>
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A lot of people are hung up on transmitter/receiver latency numbers, and don't see the whole picture. This gives as good a fact based write up as any I've seen.<br>
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Jon Lowe</SPAN></FONT></div>
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NSRCA-discussion mailing list<br>
<A href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</A><br>
<A href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion" target=_blank>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</A> </SPAN></FONT></div>
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<div style="MARGIN-BOTTOM: 12pt" class=MsoNormal><B><I><FONT size=3 face="Times New Roman"><SPAN style="FONT-STYLE: italic; FONT-SIZE: 12pt; FONT-WEIGHT: bold">--></SPAN></FONT></I></B><FONT color=maroon face=Arial><SPAN style="FONT-FAMILY: Arial; COLOR: maroon"> There are only two types of aircraft -- fighters and targets.<br>
<br>
</SPAN></FONT>Phil Spelt, Past President, Knox County Radio Control Society, Inc.<br>
URL: <A href="http://www.kcrctn.com/" target=_blank>http://www.kcrctn.com</A><br>
AMA--1294, Scientific Leader Member SPA--177, Board Member<br>
My URL: <A href="http://mywebpages.comcast.net/~chuenkan/" target=_blank>http://mywebpages.comcast.net/~chuenkan/</A><br>
(865) 435-1476 v (865) 604-0541 c </div>
<div><PRE><FONT size=2 face="Courier New"><SPAN style="FONT-SIZE: 10pt">_______________________________________________</SPAN></FONT></PRE><PRE><FONT size=2 face="Courier New"><SPAN style="FONT-SIZE: 10pt">NSRCA-discussion mailing list</SPAN></FONT></PRE><PRE><FONT size=2 face="Courier New"><SPAN style="FONT-SIZE: 10pt"><A href="mailto:NSRCA-discussion@lists.nsrca.org"></A></SPAN></FONT></PRE><PRE><SPAN class=MsoHyperlink><U><FONT color=blue size=2 face="Courier New"><SPAN style="FONT-SIZE: 10pt"><A href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</A></SPAN></FONT></U></SPAN></PRE><PRE><FONT size=2 face="Courier New"><SPAN style="FONT-SIZE: 10pt"><A href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion" target=_blank></A></SPAN></FONT></PRE><PRE><SPAN class=MsoHyperlink><U><FONT color=blue size=2 face="Courier New"><SPAN style="FONT-SIZE: 10pt"><A href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion" target=_blank>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</A></SPAN></FONT></U></SPAN></PRE>
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_______________________________________________<br>
NSRCA-discussion mailing list<br>
<A href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</A><br>
<A href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion" target=_blank>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</A> </SPAN></FONT></div>
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<div><B><I><FONT size=3 face="Times New Roman"><SPAN style="FONT-STYLE: italic; FONT-SIZE: 12pt; FONT-WEIGHT: bold">--></SPAN></FONT></I></B><B><I><FONT color=maroon face=Arial><SPAN style="FONT-STYLE: italic; FONT-FAMILY: Arial; COLOR: maroon; FONT-WEIGHT: bold">There are only two types of aircraft -- fighters and targets.<br>
<br>
</SPAN></FONT></I></B>Phil Spelt, Past President, Knox County Radio Control Society, Inc.<br>
URL: <A href="http://www.kcrctn.com/" target=_blank>http://www.kcrctn.com<br>
</A>AMA--1294, Scientific Leader Member SPA--177, Board Member<br>
My URL: <A href="http://mywebpages.comcast.net/~chuenkan/" target=_blank>http://mywebpages.comcast.net/~chuenkan/<br>
</A> (865) 435-1476 v (865) 604-0541 c </div>
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-- <br>
<br>
Keith Hoard<br>
Collierville, TN<br>
<A href="mailto:khoard@gmail.com">khoard@gmail.com</A><br>
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