Computer information systems graduates, who numbered 240,508, earned less at a median $62,000 per year, with the 25th percentile making $45,000 and the 75th percentile receiving $86,000, which was a difference of $41,000. Both types of graduates reported 94 percent employment, with 92 to 94 percent working full-time.
The sleep cycle is repeated many times throughout the night. Each sleep cycle lasts 90 minutes, usually it takes about 30 minutes to enter dreamland. Therefore, a lucid dream can last up to one hour. After that, the sleep cycle will restart again.
Each morning when participants woke up, they were asked to recall their dreams. The researchers discovered that the specific frequency of 40 Hz electrical stimulation, and to a lesser degree 25 Hz, caused participants to recall having lucid dreams.