Fig. 7.

Modulatory effect of syntactic complexity on interregional connections. Statistical parametric maps showing regions for which effective connectivity to the indicated seed locations (shown by blue circles) increased when listening to complex sentences compared to easy sentences. $z$-maps are thresholded at voxelwise $p<0.001$ ($z=3.1$) and (corrected) cluster significance threshold of $p<0.05$. These results are based on oxyhemoglobin signal changes ($\mathrm{\Delta }\mathrm{HbO}$).