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. Author manuscript; available in PMC: 2022 Mar 1.
Published in final edited form as: J Comp Neurol. 2020 Aug 13;529(4):885–904. doi: 10.1002/cne.24986

FIGURE 2.

FIGURE 2

Normalized regional density of anterograde and retrograde tracer label in the anterior cingulate cortex (ACC). (a) High-resolution z-projection of a brightfield image stack showing examples of anterograde-labeled axons and axon terminals (arrows). Identified axon terminals appear as boutons or varicosities along visible longitudinally oriented axons within the z-stack. (b) z-projection of a brightfield image stack showing examples of retrograde-labeled neurons (arrows). (c) Mean normalized regional density of anterograde-labeled axon terminals and (d) retrograde-labeled projection neurons found in distinct ACC areas. Error bars represent SEM