<prompt> Which one of the following phenomenon is closely associated with slow wave sleepDreamingSleep walkingAtoniaIrregular hea,rate  <response>: B i.e. Stage II Type of wave Found in Alpha a Wave 8-12 Hz - Adult humans, who are awake but at rest with the mind wondering eyes closedQ. Alpha block a wave is replaced by fast, irregular, low voltage activity - Arousal or Aleing responseQ - Senosry stimulation - Mental concentration as solving problem - Attention is focused on something Disappearance of a - activity Onset of sleep Reappearance of a - waves Saw tooth waves Ponto - geniculo-occipital PCO Spikes REMQ Theta waves Stage -I - NREMQ Stage - II - NREMQ Sleep spindles K- Complexes Appearance of Delta 8 waves Stage - III - NREMQ Predominant Delt 8 waves Stage - IV - NREMQ 