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Figure 4: Stress-like effects of noise exposure. Left: Mean ± S.E.M plasma levels of corticosterone obtained after exposure to environmental noise. Increased CORT levels were found immediately after exposure to noise (*P < 0.05). Right: Body weight gain during the first 7 weeks of the experiment. The rat's body weight gain is expressed in grams from 21 to 50 PND. The noise-exposed rats gained less weight as compared to the control rats (statistically signifi cant only on 34 and 37 PND). *P < 0.05. Bars represent the mean ± SEM

Figure 4: Stress-like effects of noise exposure. Left: Mean ± S.E.M plasma levels of corticosterone obtained after exposure to environmental noise. Increased CORT levels were found immediately after exposure to noise (*<i>P</i> < 0.05). Right: Body weight gain during the first 7 weeks of the experiment. The rat's body weight gain is expressed in grams from 21 to 50 PND. The noise-exposed rats gained less weight as compared to the control rats (statistically signifi cant only on 34 and 37 PND). *<i>P</i> < 0.05. Bars represent the mean ± SEM