<prompt> EEG pattern of person at rest with eyes closedAlphaBetaGammaDelta  <response>: Ans, is a i.e., Alpha Beta b waveAlpha a waveTheta waveDelta waveRecorded fronryseen ino From parietal frontal region during specific activation of these parts of braino Seen in drowsiness children and patients awake, at rest with eyes open.o Recorded from parieto occipital regiono Seen in almost all normal adults when they are awake and in quiet resting state of cerebrationo Seen in awake patient at rest with mind wandering and eyes closed.o Seen in hippocampuso In parietal and temporal region of normal children drowsiness, emotional stress in adults especially disappointment and frustration.Seen in very deep NREM sleep infant,serious organic brain disease, in subcortical transactions separating the ceberal cortex from thalamus.Frequency14 Hz8-13 Hzo 4-7 Hzo 3-5 Hz min.AmplitudeLow amplitudeo High amplitudeo High amplitudeo Large amplitude MaxVoltage o 50 micro volts usually to 100 o 2 to 4 times greater than most other types 