Figure 8.

(A) Shows a schematic of the zonal organization of the optic flow responsive cells in the VbC as concluded from a series of electrophysiological and anatomical studies (Wylie and Frost, 1993, 1999b; Wylie et al., 1993, 2003a,b; Winship and Wylie, 2003; Pakan et al., 2005). The location of the Ascent units was unknown. (B) Shows a coronal section through the posterior cerebellum (folia VII–IXcd) showing heterogeneous zebrin II (ZII) expression. (C) and (D) Highlight the ZII expression in the vestibulocerebellum. (D) Is a wholemount of the cerebellum whereas (C) is a coronal section through folia IXcd and X. The ZII stripes are numbered P1± to P7± from the midline (indicated by the dashed line). P6−, P7+, and P7− are found more rostrally, as seen in (D). P1− is divided into medial and lateral portions by a small satellite immunopositive band one to two Purkinje cells wide in the middle of P1− denoted “?”. P2+ is divided into medial and lateral portions by a small immunonegative “notch” in the middle of P2+ (see inverted triangle). Folium X does not have ZII stripes, as all Purkinje cells are ZII+ve. (B) and (D) Are adapted from Pakan et al. (2007). (C) Is adapted from Graham and Wylie (2012). Scale bars: (A,B) = 500 μm; (C) = 300 μm; (D) = 2.5 mm.