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## Chapter 14, Figure 6

NMDS representation of the dataset from Fig.1. Green lines indicate unidirectional, red lines reciprocal connections between the areas. For details of the analysis see main text. Starting with V1, the diagram shows the separation of the primate visual system into two main streams that are more connected internally than between each other. The "ventral stream" of mainly temporal areas is situated towards the left, the "dorsal stream" of occipital and occipito-parietal areas towards the right side The arrangement hints that the streams might reconverge in prefrontal (e.g. A46) and polymodal (STP) cortical regions of the diagram. Also apparent is the intermediate position held by area V4, based on its interconnections with both the 'peripheral' dorsal stream and the ventral stream. Additionally, the bottom to top arrangement of visual areas in this diagram broadly agrees with the arrangement from 'peripheral' to more 'internal' areas in the brain. The stress value for the shown diagram is 0.31, and the variance of the high-dimensional topology explained by the low-dimensional configuration (as represented by the configuration's squared correlation in distances) is 0.48, indicating a moderate fit.

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