benkuhn comments on Seed Study: Polyphasic Sleep in Ten Steps - Less Wrong

31 Post author: BrienneYudkowsky 11 July 2013 07:17AM

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Comment author: benkuhn 16 July 2013 06:15:33AM 2 points [-]

Brienne, my roommate and I would like to do this, but our schedule won't match yours because we're time constrained. (We already started taking baseline data, but we're doing the adaptation this weekend as opposed to on Monday.) Should we still fill out your form or will the timing mess things up?

Also, my PMV score gets about ~50ms lower when I use a mouse as opposed to a trackpad. Hopefully this isn't an issue, but people should make sure they're using consistent hardware.

Comment author: BrienneYudkowsky 17 July 2013 02:12:01AM 2 points [-]

That's awesome. PM me your names so I know what my data mean.

Comment author: benkuhn 23 July 2013 02:16:38PM 1 point [-]

I just realized that my PMV score also varies not just with mouse usage, but also with which OS I'm running (Windows gave me a ~40ms higher score). None of my data is contaminated, but just thought I'd warn you in case anyone at Leverage is dual booting.

Comment author: BrienneYudkowsky 23 July 2013 08:37:52PM 1 point [-]

Thanks! Yeah, exactly what button is pressed under what conditions is one of the major bug reports I've collected for future research attempts.

Comment author: gwern 23 July 2013 09:18:41PM *  2 points [-]

From the discussion on Yvain's blog of a recent meta-analysis trying to compare simple reaction times from Galton to now, I learned that apparently consumer computers have serious issues with displaying images and recording timings down to the ms precision and that one has to configure a setup specifically for the task to compete accuracy-wise with special-purpose reaction-time gear.

John Carmack, in video game / VR contexts, has some interesting writings; here's two: http://www.altdevblogaday.com/2013/02/22/latency-mitigation-strategies/ http://superuser.com/questions/419070/transatlantic-ping-faster-than-sending-a-pixel-to-the-screen/419167#419167