Who was the very first test subject in the 1952 discovery of REM sleep?

In 1952, graduate student Eugene Aserinsky used his 8-year-old son, Armond, as a test subject. Using an old brain-wave machine, he noticed bursts of rapid eye movement and brain activity nearly identical to wakefulness. This ground-breaking discovery shattered the old belief that the brain simply 'idles' during sleep and launched modern sleep science.