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  Indian J Med Microbiol
 

Figure 2: Average (N = 19) brain responses to nonpainful tactile stimulations in NREM sleep. The recordings are provided from 8 major sites on the scalp (F: Frontal, C: Central, T: Temporal, and P: Parietal; even numbers right and odd numbers left hemisphere). The brain responses to right hand somatosensory stimulations are labeled as SEP-R (orange color) and hence the left as SEP-L (green color). The horizontal axis denotes time in ms, ranging from 1000 ms prestimulus to 2000 ms poststimulus (“-” value represents before the stimulus onset). The dashed vertical line represents the time point of stimulation. The vertical axis denotes amplitude (in μV, the reference marker points to the amplitude as in 2.5 μV scale) as positive values are given as the upper direction

Figure 2: Average (<i>N</i> = 19) brain responses to nonpainful tactile stimulations in NREM sleep. The recordings are provided from 8 major sites on the scalp (F: Frontal, C: Central, T: Temporal, and P: Parietal; even numbers right and odd numbers left hemisphere). The brain responses to right hand somatosensory stimulations are labeled as SEP-R (orange color) and hence the left as SEP-L (green color). The horizontal axis denotes time in ms, ranging from 1000 ms prestimulus to 2000 ms poststimulus (“-” value represents before the stimulus onset). The dashed vertical line represents the time point of stimulation. The vertical axis denotes amplitude (in μV, the reference marker points to the amplitude as in 2.5 μV scale) as positive values are given as the upper direction