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. 2020 Sep 16;73(1):73–84. doi: 10.1007/s43440-020-00159-2

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© The Author(s) 2020

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Fig. 2 — High serum neutral ceramidase (NC) activity is associated with superior performance in a long-term memory task in rats. a Naïve rats were divided into three groups according to the percent of spontaneous alternations in a novel object recognition test (n = 10/group). b Serum NC activity in different learner types. c NC activity in the brain of different learner type rats. d AC activity in the brain of different learner type rats. Data are shown as mean ± SEM (VS ventral striatum, DS dorsal striatum, DH dorsal hippocampus, VM ventral mesencephalon, Hyp hypothalamus; ***p < 0.001)