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. Author manuscript; available in PMC: 2012 Dec 1.
Published in final edited form as: Psychopharmacology (Berl). 2012 Jun 30;224(3):401–412. doi: 10.1007/s00213-012-2759-0

Fig. 3.

Fig. 3

Injection sites of ZK 200775 and their effectiveness in self-administration. Injection sites of rats (N = 58) from experiment 1 are shown by rectangles depicting the 0.3-mm tip of injection cannulas. Each site’s effectiveness on self-administration is indicated by its color. Median lever presses per minute among ZK 200775 sessions of each rat were classified into one of three levels: red greater than 0.700; orange between 0.701 and 0.350; green less than 0.350. The numbers indicate distances from bregma. Brain sections are adopted from Paxinos and Watson (2005)