Fig. 4From: Neurophysiological modulation of rapid emotional face processing is associated with impulsivity traitsComparisons of frontal and occipital independent components (ICs) between the frequent and infrequent conditions. a The infrequent condition combining the angry (ANG) and happy (HAP) faces was compared to the frequent neutral (NT) faces for the frontal (left upper) and occipital (right upper) ICs. Difference waveforms (infrequent minus frequent) are plotted in lower portions. Three phases of early frontal negativity (EFN), middle frontal negativity (MFN), and late frontal negativity (LFN) were morphologically specified for the frontal IC. The phase of the visual mismatch negativity (vMMN) was specified for the occipital IC. b The ANG and HAP faces were separately compared with the NT faces for the frontal (left upper) and occipital (right upper) ICs. Difference waveforms are plotted in lower portions. Three phases of the frontal IC and one phase of the occipital IC are shaded in gray Back to article page