Figure 4.
Brightfield photomicrographs of gephyrin immunoreactivity in area 46 of monkeys 2.3 months (A,C) and 3.3 years (B,D) of age. The numbers and hash marks indicate laminar boundaries, and the dashed line indicates the layer 6-white matter (WM) border. The arrows indicate gephyrin immunoreactive AIS. The photomicrograph from Panel C is taken from layer 4 in Panel A and the photomicrograph in Panel D is taken from layer 2 in Panel B. Scale bars = 200 μm in B (applies to A,B); 100 μm in D (applies to C,D).