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. Author manuscript; available in PMC: 2012 Jan 13.
Published in final edited form as: Neuroscience. 2010 Oct 27;172:460–473. doi: 10.1016/j.neuroscience.2010.10.055

Figure 4.

Figure 4

Response thresholds following morphine (5 µg/side) administered into the parafascicular nucleus (PF) and antagonist administered into sites outside the anatomical boundaries of the Cg1 region of the rostral anterior cingulate cortex (extra-rACC). Thresholds following morphine (mrp) administration into PF were compared to those obtained following AP-5 or CNQX administration into extra-rACC sites. Data are plotted as the mean (+/− S.E.M.) threshold of spinal motor reflexes (SMRs), vocalizations during shock (VDSs), and vocalization afterdischarges (VADs). Asterisk (*) indicates thresholds significantly elevated above extra-rACC/saline (sal) + PF/sal treatment (p < 0.05).