Pre-Exposure to Environmental Enrichment Protects against Learning and Memory Deficits Caused by Infrasound Exposure

Figure 2

(a) From day 3 onwards, the rats in the IE-SE group showed a longer latency time to the platform than the rats in the Sham-SE, Sham-EE, or IE-EE group. Sham-SE vs. IE-SE: ; IE-SE vs. IE-EE: ; IE-SE vs. Sham-EE: . (b) No differences were exhibited in the latency to the visible platform. (c) The rats in the IE-SE group spent less time in target quadrant C compared with the rats in the Sham-SE, Sham-EE, or IE-EE group. , , . (d) The rats in the IE-SE group had lower target crossing times compared with the rats in the Sham-SE, Sham-EE, or IE-EE group. , . (e) No differences were observed in the swimming speed. The assignment of order was counterbalanced across rats in this test. Data represent means ± SEM,  =6.

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