Ai) Change in gamma power relative to baseline in soman-exposed rats that received MDZ + 500 mg/kg propylparaben (grey, n=7) or MDZ + saline (blue, n=10). Aii) Change in mean spike rate frequency relative to baseline in soman-exposed rats that received MDZ + 500 mg/kg propylparaben (grey, n=7) or MDZ + saline (blue, n=10). Aiii) Fluoro-Jade B staining in vulnerable brain regions in soman-exposed rats that received MDZ + 500 mg/kg propylparaben (grey, n=7) or MDZ + saline (blue, n=17). Bi) Change in gamma power relative to baseline in DFP-exposed rats that received MDZ + 500 mg/kg propylparaben (grey, n=17) or MDZ + PEG200 (blue, n=17). Bii) Change in mean spike rate frequency relative to baseline in DFP-exposed rats that received MDZ + 500 mg/kg propylparaben (grey, n=17) or MDZ + PEG200 (blue, n=17). Biii) Fluoro-Jade B staining in vulnerable brain regions in DFP-exposed rats that received MDZ + 500 mg/kg propylparaben (grey, n=17) or MDZ + PEG200 (blue, n=17). Data represents mean ± SEM. Statistical significance: *p<0.05.