Seth’s diet, etc.

Seth Roberts is guest-blogging at Freakanomics with lots of interesting hypotheses about low-budget science, or what might be called “distributed scientific investigation” (by analogy to “distributed computing”).

One of the paradoxes of Seth’s self-experimentation research is that it seems so easy, but it clearly isn’t, as one can readily see by realizing how few scientific findings have been obtained this way. Reading Seth’s article in Behavioral and Brain Sciences gave me a sense of how difficult these self-experiments were. They took a lot of time (lots of things were tried), required discipline (e.g., standing 8 hours a day and setting up elaborate lighting systems in the sleep experiments) and many many measurements, and were much helped by a foundation of a deep understanding of the literature in psychology, nutrition, etc.

Also, for those interested in further details of Seth’s diet, I’ll cut-and-paste something from his blog entry.

Seth writes: Continue reading

Watching faces on TV in the morning may cure depression

Seth Roberts did some self-experimentation several years ago and found that watching faces on TV in the morning improved his mood (see here for a link to his article on this research along with some of my thoughts). Several years ago, I email-interviewed Seth on this. The interview never appeared anywhere and we just dug it up, so I’m posting it here. (Seth will also post it on his blog, which has many of his thoughts on self-experimentation.)

Andrew Gelman: Why don’t you start by describing your method of using TV watching to cure depression?

Seth Roberts: To feel better, you watch faces on TV in the morning and avoid faces (televised and real) at night. TV faces are beneficial in the morning and harmful at night only if they resemble what you would see during an ordinary conversation. The TV faces must be looking at the camera (both eyes visible) and close to life-size. (My experiments usually use a 27-inch TV.) Your eyes should be about three feet from the screen. Time of day is critical–if you see the TV faces too early or late they will have no effect. The crucial time of day depends on when you are exposed to sunlight but figuring out the best time of day is mainly trial and error right now. I usually have subjects start watching around 7 a.m. They watch about 50 minutes of faces each morning, and so do I.

Most mornings I watch little snippets of TV shows with plenty of faces looking at the camera, such as The News Hour with Jim Lehrer (PBS), the Talking Points section of The O’Reilly Factor (Fox News), Washington Journal (C-SPAN), and Larry King Live (CNN), that I taped the day before. I usually fast-forward through the non-big-face portions. The best TV show for this research is Booknotes (C-SPAN), on Sunday, which I watch in pieces throughout the week. My subjects watch tapes of Booknotes.

AG: How did you come up with this idea?
Continue reading

Diet soda and weight gain

I wonder what Seth Roberts thinks about this:

Study links diet soda to weight gain

BY DON FINLEY

San Antonio Express-News

A review of 26 years of patient data found that people who drink diet soft drinks were more likely to become overweight.

Not only that, but the more diet sodas they drank, the higher their risk of later becoming overweight or obese — 65 percent more likely for each diet drink per day.

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“There was this prevalent, incestuous, backslapping research culture. The idea that their work should be criticized at all was anathema to them. Let alone that some punk should do it.”

[image of a cat reading a comic book] How did the outsiders upend social psychology? CATRON: We used basic reporting techniques. We’d call up somebody and ask them about thus-and-so, and they’d mention so-and-so, so we’d call so-and-so, and ask … Continue reading