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. Author manuscript; available in PMC: 2007 Sep 1.
Published in final edited form as: Learn Mem. 2006;13(5):590–598. doi: 10.1101/lm.301206

Figure 4.

Figure 4

(A) Representative Fos protein expression in the olfactory bulb following control or experimental treatment. MCL indicates mitral cell layer; GCL, granule cell layer; SAL, saline; and NTX, naltrexone. Arrow designates an example of a Fos-positive cell. 10×; horizontal scale bar, 100 μm. (B) Representative Fos protein expression in the central nucleus of the amygdala. Schematic section reprinted with permission from Elsevier © 1986, Paxinos and Watson (1986). The square indicates the area shown in the two right panels (10×).