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. 2012 Mar 28;7(3):e34316. doi: 10.1371/journal.pone.0034316

Figure 3. Acute skin incision affects motivational behaviour that is driven by presence of food treats.

Figure 3

(a) Rearing behaviour decreased (F(1,56) = 34.83; p<0.001) and (b) percentage of time spent in the central zone increased (F(1,56) = 13.02); p<0.05) in the NIH arena when animals with no previous pain history were tested 48 hours after an acute adult injury. Graph illustrates AN+IN (n = 14) versus AN (n = 13) for clarity. (c) The increase in time spent in the CZ after acute incision is driven by the presence of treats - when treats were absent, adult incised animals spent less time in the central zone (p<0.05; all groups analysed via one-way ANOVA with Bonferroni's Multiple Comparison Test). *p<0.05, ***p<0.001.