From "A Wearable Sensor for Unobtrusive, Long-term Assessment of Electrodermal Activity" (by Poh, M.Z., Swenson, N.C., Picard, R.W. in IEEE Transactions on Biomedical Engineering, vol.57, no.5), a chart showing a single student's electrodermal activity over the course of a week. Note the neural flatlining during classtime. As Joi Ito notes, "Note that the activity is higher during sleep than during class." He also adds, "Obviously, this is just one student and doesn't necessarily generalize."
A week of a student's electrodermal activity (Thanks, Joi!)
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.