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. 2024 Mar 5;13:e85303. doi: 10.7554/eLife.85303

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© 2024, Gumaste et al

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Figure 4. — (A) Example low intermittency trial (top) and a high intermittency trial (bottom). Photoionization detector (PID) trace (red), sniff trace (black), and deconvolved ΔF/F traces of two example glomeruli (left, color coded based on odor correlation color bar, right). Example spatial maps of glomeruli color coded based on glomerular response correlation with odor. Two example glomeruli shown in the left traces are labeled, middle. Cross-correlation between deconvolved ΔF/F and odor for each glomerulus for example trials, right. (B) Glomerular odor correlation organized based on glomerulus anterior to posterior and medial to lateral location in the dorsal olfactory bulb (low intermittency example, top two graphs; high intermittency example, bottom two graphs). Low intermittency: M-L r=0.34, A-P r=0.58; high intermittency: M-L r=0.58, A-P r=0.62. (C) Correlation coefficient of glomerular odor correlation in each dimension (based on graphs in B for all trials). Trial averages are separated by odor intermittency value (colorbar). M-L:μ_int0.1-0.2=0.23, μ_int0.3-0.4=0.33, μ_int0.5-0.6=0.35, μ_int0.7-0.8=0.37; A-P: μ_int0.1-0.2=0.46, μ_int0.3-0.4=0.48, μ_int0.5-0.6=0.48, μ_int0.7-0.8=0.50. (D) Spatial odor map (z-score amplitude, open circle) and spatiotemporal odor map (T75, gray) (for methyl valerate). M-L: μ_{z-score(Amplitude)}=0.18, μ_T75=-0.33; A-P: μ_{z-score(Amplitude)}=0.37, μ_T75=-0.32. (E) Probability density function of T75 for all glomeruli and Gaussian curve fits for fast responding glomeruli cluster (dark gray) and slow responding glomeruli cluster (light gray) (top). Glomerulus odor correlation on trials with intermittency ≥0.7 vs glomerulus odor correlation on trials with intermittency ≤0.2. Fast responding glomeruli (low T75): y=0.65x–0.05, r²=0.77, p<0.0001. Slow responding glomeruli (high T75): y=0.29x+0.026, r²=0.53, p<0.0001 (n=244 glomeruli).

Figure 4—figure supplement 1. — (A) Example low intermittency trial (top) and a high intermittency trial (bottom). Photoionization detector (PID) trace (red), sniff trace (black), and deconvolved ΔF/F traces of two example glomeruli (left, color coded based on odor correlation color bar, right). Example spatial maps of glomeruli color coded based on glomerular response correlation with odor. Two example glomeruli shown in the left traces are labeled, middle. Cross-correlation between deconvolved ΔF/F and odor for each glomerulus for example trials, right. (B) Glomerular odor correlation organized based on glomerulus anterior to posterior and medial to lateral location in the dorsal olfactory bulb (low intermittency example, top two graphs; high intermittency example, bottom two graphs). Low intermittency: M-L r=0.34, A-P r=0.58; high intermittency: M-L r=0.58, A-P r=0.62. (C) Correlation coefficient of glomerular odor correlation in each dimension (based on graphs in B for all trials). Trial averages are separated by odor intermittency value (colorbar). M-L:μ_int0.1-0.2=0.23, μ_int0.3-0.4=0.33, μ_int0.5-0.6=0.35, μ_int0.7-0.8=0.37; A-P: μ_int0.1-0.2=0.46, μ_int0.3-0.4=0.48, μ_int0.5-0.6=0.48, μ_int0.7-0.8=0.50. (D) Spatial odor map (z-score amplitude, open circle) and spatiotemporal odor map (T75, gray) (for methyl valerate). M-L: μ_{z-score(Amplitude)}=0.18, μ_T75=-0.33; A-P: μ_{z-score(Amplitude)}=0.37, μ_T75=-0.32. (E) Probability density function of T75 for all glomeruli and Gaussian curve fits for fast responding glomeruli cluster (dark gray) and slow responding glomeruli cluster (light gray) (top). Glomerulus odor correlation on trials with intermittency ≥0.7 vs glomerulus odor correlation on trials with intermittency ≤0.2. Fast responding glomeruli (low T75): y=0.65x–0.05, r²=0.77, p<0.0001. Slow responding glomeruli (high T75): y=0.29x+0.026, r²=0.53, p<0.0001 (n=244 glomeruli).