Research Article

Synapse Plasticity in Motor, Sensory, and Limbo-Prefrontal Cortex Areas as Measured by Degrading Axon Terminals in an Environment Model of Gerbils (Meriones unguiculatus)

Figure 4

Silver granule densities in the cortical layers of motor (Fr1, HL), sensory (Par1, Te1, Oc1, Oc2MM), and prefronto-limbic areas (IL, Cg3, Cg1, IC, PRh) in enriched- (a) and impoverished-reared (b) gerbils. Note that considerable layer- and area-dependent differences can be seen. Data are given as mean standard error. Asterisks indicate levels of significance according to posthoc analysis of variance (ANOVA) testings including all areas. : , : , : . Fr1 : frontal cortex area 1; HL : hindlimb area; Par1 : parietal cortex area 1; Te1 : temporal cortex area 1; Oc1 : occipital area 1; Oc2MM : occipital cortex area 2 mediomedial; IL : infralimbic cortex; Cg3 : cingular cortex area 3; Cg1 : cingular cortex area 1; IC : insular cortex; PRh : perirhinal cortex.
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(a) Enriched rearing (ER)
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(b) Impoverished rearing (IR)