Duke is exhausted and plops down on the couch. Fifteen minutes after falling asleep, Duke is not awakened by the refrigerator cy
cling on. He is, however, awakened by his roommate opening the refrigerator door. What type of brain waveforms did Duke display right before being awakened?a. âdelta wavesb. âtheta wavesc. âbeta wavesd. âtheta waves with sleep spindles and K-complexes
K-complexes and sleep kindles are known to be defining brainwaves of stage 2 REM or sleep. Duke has not entered the deep sleep stage or the slow wave sleep stage which are characterized by low frequency and high delta waves. While K-waves are large theta waves that usually occur in response to stimulus such as sound, and hence Duke must have been awakened by the sound of the door.
The Anti-Federalists opposed the ratification of the 1787 U.S. Constitution because they feared that the new national government would be too powerful and thus threaten individual liberties, given the absence of a bill of rights.