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Fig. 1 | BMC Neuroscience

Fig. 1

From: Neural hyperactivity in the amygdala induced by chronic treatment of rats with analgesics may elucidate the mechanisms underlying psychiatric comorbidities associated with medication-overuse headache

Fig. 1

The effect of chronic treatment of rats with analgesics on the duration (a) and number of open-arm entries (b) on an elevated plus maze, and open field test results (c) (mean ± SD for 10 rats). *P < 0.05 compared with normal saline-treated control rats, one-way ANOVA followed by a Dunnett test

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