Time course of each cortical activity in the 0.1 Hz condition. All sources estimated in Figures 3 and 4 were applied to the waveform obtained in the 0.1 Hz condition to determine the actual time course of each activity in this condition. Among several modality-specific activities, only one or two main sources are included in this figure to clearly show the similar sequence of activations among all sensory modalities. A, temporal profiles of source strength. B, locations of the sources in the cingulate cortex and hippocampal region overlaid on the slices of the standard brain. C, schematic presentation of the common sequential activations through 'early' sensory areas, 'late' sensory areas, the ACC and the hippocampal region. D, time course of each cortical activity in the 0.1 Hz condition of individual data. Waveforms of each subject (blue lines) and their average (black) are superimposed. Note the similar temporal profile of each cortical activity between the grand-averaged data (shown in A) and individual data.
Tanaka et al. BMC Neuroscience 2008 9:116 doi:10.1186/1471-2202-9-116