Figure 4

Validation of the semi-automated olfactory test set-up. Schematic describing how intranasal ZnSO4 injections were performed (a). Graphs b & c represent pooled results in response to heptanal, isoamyl acetate, methyl valerate and 1,7-octadiene odors. Male wild type mice receiving zinc sulfate spent significantly less time engaged in investigatory sniffing (b), as well as less time for 10−8, 10−6, 10−4, 10−3 and 10−2 odor dilutions compared to the saline group (c). Data displayed as mean ± SEM, n = 9 per treatment group. *p ≤ 0.05, **p ≤ 0. 01. Image created with BioRender.