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. 2020 Apr 22;14:59. doi: 10.3389/fnbeh.2020.00059

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Copyright © 2020 Han, Dong, Xu, Rao, Shu, Li, Cheng, Wu, Yang, Han and Zhong.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Correlation between behavior and copper concentrations. (A) Correlation between escape latency and copper concentrations. Escape latencies were significantly correlated with copper concentrations in the sensorimotor cortex, hippocampus, corpus striatum, and cerebellum. (B) Correlation between the open arm ratio and copper concentrations. The open arm ratio was significantly correlated with copper concentrations in the hippocampus and amygdaloid nucleus, but no significant correlations were observed between the open arm ratio and copper concentrations in the prefrontal cortex. (C) Correlation between the amount of time spent in the open arms of the elevated plus-maze (EPM) and copper concentrations. The amount of time spent in the open arms was significantly correlated with copper concentrations in the hippocampus and amygdaloid nucleus, but no significant correlations were observed between the amount of time spent in the open arms and copper concentrations in the prefrontal cortex. (D) Correlation between the amount of time spent in the center zone and copper concentrations. The amount of time spent in the center zone was significantly correlated with copper concentrations in the hippocampus and amygdaloid nucleus, but no significant correlations were observed between the amount of time spent in the center zone and copper concentrations in the prefrontal cortex. (E) Correlation between the amount of time spent in the wall zone and copper concentrations. The amount of time spent in the wall zone was significantly correlated with copper concentrations in the hippocampus and amygdaloid nucleus, but no significant correlations were observed between the amount of time spent in the wall zone and copper concentrations in the prefrontal cortex. (F) Correlation between the total distance traveled and copper concentrations. The total distance traveled was significantly correlated with copper concentrations in the primary motor cortex and corpus striatum. (G) Correlation between rearing and copper concentrations. There were no significant correlations between rearing and copper concentrations in the cerebellum and corpus striatum. (H) Correlation between climbing and copper concentrations. Climbing was significantly correlated with copper concentrations in the cerebellum, but no significant correlations were observed between climbing and copper concentrations in the corpus striatum. (I) Correlation between immobility time and copper concentrations. No obvious correlation was found between immobility time and copper concentrations in the hippocampus, prefrontal cortex, and amygdaloid nucleus.