The dorsal lateral nucleus projects fibers diffusely to the cortex of the middle and posterior suprasylvian gyri, the lower part of the posterolateral gyrus, the anterior and posterior limbic regions, the postsubicular area and the paralimbic region. However, the heavy cortical projection of the dorsal lateral nucleus is organized in the anteroposterior direction. The posterior lateral nucleus also projects fibers diffusely to the whole cortical projection area of the dorsal lateral nucleus, as well as to the cortex of the anterior suprasylvian gyrus, the anterolateral part of the lateral gyrus (area 19), and the banks and bottom (area 19) of the splenial sulcus. The heavy cortical projection areas, however, are limited to the anterior and middle suprasylvian gyri, the adjacent part of area 19 in the lateral gyrus, and the cortex around the anterior splenial sulcus, including area 19. Moreover, the heaviest cortical projection of the posterior lateral nucleus to these cortical areas is organized in a topical manner anteroposteriorly.
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