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. 2011 May 18;106(2):801–808. doi: 10.1152/jn.00575.2010

Fig. 1.

Fig. 1.

The dorsal raphe nucleus (DRN) projects to the nucleus accumbens (NAc). A: simplified diagram of parasagittal section illustrating DRN and ventral tegmental area (VTA) projections to NAc. PAG, periaqueductal gray. B: diagram of coronal section at the level of the NAc, bregma +1.00. C: light micrograph showing example of bilateral Fluoro-Red injection sites in NAc. Most injections occurred in both core and shell subregions. D: diagram of coronal section at the level of the PAG, bregma −7.80. E: fluorescent image showing retrograde labeling of neurons in the DRN that project to the NAc. Aq, aqueduct; mlf, medial longitudinal fasciculus. Diagrams in B and D are adapted from Paxinos and Watson (1998), Copyright Elsevier.