jimmy comments on How to test your mental performance at the moment? - Less Wrong

22 Post author: taw 23 November 2009 06:35PM

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Comment author: jimmy 24 November 2009 12:49:41AM 1 point [-]

Are you saying that you cant tell the difference between working normally and working a significantly below normally, or that even when you're seriously impaired you feel fine (eg after being awake for 30 hours)?

I have been trying to pay attention to my mental ability since I started taking piracetam (which does produce a noticeable improvement), and I'm usually pretty good at determining whether I'm working better or worse than average. I think I have better resolution there due to practice.

However, sometimes I make much less progress than expected (ie negative), which is evidence that there's some impairment that I'm blind to. Due to the inherent noise in how much 'progress' I make, this could be statistical flukes, though I doubt it.

Comment author: taw 24 November 2009 02:50:12AM 3 points [-]

Are you saying that you cant tell the difference between working normally and working a significantly below normally, or that even when you're seriously impaired you feel fine (eg after being awake for 30 hours)?

I cannot, or at least until it gets to really extreme levels, and not reliably in any case.

My sleepiness is not terribly correlated with my levels sleep deprivation - this could be taken to ridiculous levels back when I tried Provigil, as I didn't feel sleepy or tired or impaired in any way, after weeks of sleeping just a couple of hours a day, even though my performance suffered massively (as verified retrospectively by svn logs and such), and got back to high levels as soon as I slept it over.

Normally it's not as extreme, but significant drop in performance happens many hours before I feel sleepy or tired, and can usually be fixed by a short 1-2h nap. It's even worse, as I don't know how sleepy I am - often I know I need some sleep, but my track record of predicting if it will be 1-2h nap or a full 8h sleep is hardly better than random. People with more regular 24h activity cycles probably don't have this problem as much.