IGKV2D-24 and stroke disorder: With limonene as the conditioned odorant, α7+/+ and α7−/− mice in the stroke+odor groups significantly increased the mean percent time investigating limonene compared to benzaldehyde (n = 6 and 8, respectively; Figure 4B), while α7+/− mice spent the same amount of time investigating both odors (n = 20).