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Fig. 2 | BMC Neuroscience

Fig. 2

From: Spectral-temporal EEG dynamics of speech discrimination processing in infants during sleep

Fig. 2

Mean spatial PCA results; a channel activations were computed by projecting the selected eigenvectors onto the original channel space by multiplying the eigenvectors with the original input data (bootstrapped differences), and b channel loadings were computed as the sum of the mean of the squared, retained eigenvectors for each of 11 scalp electrodes. Electrodes Cz, M1, and M2, which have the largest loadings in opposite polarity, are shown with thicker lines; line color of the activation in a corresponds with bar color in b

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