Dynamic causal modelling of lateral interactions in the visual cortex

► New neural field model of canonical cortical microcircuitry ► Modelling of vertical interlaminar and horizontal intralaminar connections ► Estimation of the width of macrocolumns using non-invasive (MEG) signals ► Assessment of influence of cortical excitability and microcircuitry to gamma peak ► Mechanistic approach to correlations among cortical structure and function.