Fig. 5.
Effects of bicuculline treatment on GABA immunoreactivity. A, C, Control slice.B, D, Bicuculline-treated slice.A, B, Stratum oriens at the border of the slice. Brackets delineate a bundle of thin processes.Arrowheads point to thick processes. C,D, Middle of the stratum oriens. Arrowspoint to cell bodies. Note the increased density of GABA-immunoreactive processes after bicuculline treatment. Scale bar, 20 μm.