Research Article

EEGIFT: Group Independent Component Analysis for Event-Related EEG Data

Figure 3

Real Data Decomposition. This figure is an illustration of one component from a group ICA decomposition of an auditory oddball dataset ( n = 3 2 participants), and shows the group mean of one independent component in the leftmost column, and reconstructions for three subject s in the other columns. Note that the group mean component peaks have smaller amplitude due to latency jitter. Top: topography, Middle: single trial image, bottom: component event related average. Vertical lines in the lower left indicate the onset of the preceding standard, target, and succeeding standard, respectively. Topography and latency identify this component as the auditory N1, and typical N1-enhancement is clearly visible in response to targets.
129365.fig.003