Fig. 7
From: Spectral-temporal EEG dynamics of speech discrimination processing in infants during sleep
Feature centroids by condition. The spectral-temporal center of each feature is plotted as a circle, separately for each condition. Conditions are displayed in three different colors: red (labeled “N”) is the non-speech (noise-tone) condition, blue (labeled “V”) is the vowel (/i/–/a/) condition, and orange (labeled “C”) is the consonant (/da/–/ba/) condition. The dotted lines simply connect each condition’s centroids for visualization purposes. The relative probability at each centroid is denoted by change in size of the circle, as indicated in the lower key