Parietal Cortex: LIP, AIP, 7a, 7b, DP

Fig. 1. Partitioning schemes of parietal cortex from six previous studies (all oriented as right hemispheres to facilitate comparisons). A: Scheme of Pandya and Seltzer (1982) includes PGm, which overlaps MDP of this study (compare with E), and subdivisions PG, PFG, and PF which overlap areas 7a and 7b. B: Scheme of Preuss and Goldman-Rakic (1991b) introduced area AIP and refinements on area 7. C: Scheme of Andersen et al. (1990), showing the extent of areas 7a, LIP (LIPv plus LIPd) and DP.  D: Scheme of Seltzer and Pandya (1980,1986) defined IPd along the fundus, which overlaps AIP, VIP, and possibly portions of PIP in the present study. Additionally, PEa overlaps much of 5V, and POa was subdivided into POa-e and POa-i.

E: Scheme of Colby et al. (1988) introduced areas PO and MIP (dotted outlines) and MDP which were adopted in this study. The dotted outline between VIP and LIP most likely corresponds to the densely myelinated area LIPv in the present study. Dashed lines represent

fundi, and broad lines represent the sulcal ridges. F: Scheme adopted from Felleman and Van Essen (1991) and Drury et al. (1996a), illustrating a canonical map derived from numerous studies. Dark gray shading represents cortex buried in sulci. For abbreviations in this and subsequent figures, see list and/or literature citations. A–C,E reprinted with permission from Wiley-Liss, Inc. D reprinted with permission from Springer-Verlag, New York, Inc.