Fig. 4

Correlations between the duration of OFT-induced grooming and the time spent in the center area in the OFT (exploratory behavior) (a) or the time spent in the open arms in the EPM (an index of anti-anxiety level) (b). A tendency of negative correlation was found between OFT-induced grooming and the time spent in the center area in the OFT, using the Spearman rank correlation test. Each point represents an individual animal