Combined MEG and Cytoarchitectonic Data Imaging

In most MEG and other functional imaging studies the meaning of an activated cortical area is usually interpreted in relation to the surrounding gyral and sulcal landmarks. In contrast, previous studies showed that such landmarks do not have a fixed relationship to cytoarchitectonic boundaries. Moreover, it is not possible to identify any cortical area from functional imaging or anatomical data alone. In our MEG research group we developed a dedicated software (ROIfinder) to automatically extract strong neural activations from the huge amount of time series of reconstructed current densities for all voxels. Firs…