Figure 5.
Spatial correspondence between N1 source localization and fMRI results. Dipoles fit with BESA to the spatial (blue) and object (green) attentional difference topographies (shown in Fig. 4) are superimposed with the neural sources estimated by LAURA for spatial (left) and object (middle) attention effects in the N1 latency range (140–180 ms). fMRI activations resulting from the group conjunction (conj.) analysis are shown to the right. For all quadrants, a prominent source in the contralateral LOC region was identified by LAURA and BESA; this source coincides with the area identified with fMRI as being commonly activated during both attention conditions. Only the contralateral member of each symmetrical dipole pair is shown. The color bar depicts the current source intensity for the LAURA source solutions. Data are displayed on the MNI brain (left hemisphere is on the left).
