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. 2009 Apr 15;29(15):4836–4845. doi: 10.1523/JNEUROSCI.0178-09.2009

Figure 1.

Figure 1.

Histological analysis of intra-mPFC microinjection sites. A, Microphotograph of a representative injector placement within the mPFC. B, Schematic illustration showing representative bilateral placements of microinjection cannulae. For illustrative clarity, only a subset of experimental groups is presented. Symbols represent separate experimental groups: ▵, PD 168077, 50 ng/0.5 μl versus acquisition of subthreshold stimuli; □, SKF 38393, 1000 ng/0.5 μl versus acquisition of subthreshold stimuli; ▾, PD 168077, 50 ng/0.5 μl versus acquisition of suprathreshold stimuli; •, SKF 38393, 1000 ng/0.5 μl versus expression of suprathreshold stimuli.