Confocal images that show two types of neurons immunopositive for GAD67 (red). (a, d, g) Immunopositive cells with dense VGLUT2+ axosomatic endings (green) are indicated with arrows. (b, e, h) GAD67+ cells without VGLUT2+ terminals (white arrowheads). (c, f, g) GAD67-negative cells (black arrowheads) also lack VGLUT2+ axosomatic endings. These three types were seen in all IC subdivisions (a–c: ICC, d–f: DC, g and h: LC). Scale bar: 10 μm.