Olfactory response as a marker for Alzheimer’s disease: Evidence from perceptual and frontal lobe oscillation coherence deficit
Fig 2
Total and modified UPSIT scores plotted versus age: a) Top: Regression of total UPSIT score with age. Distributions of total UPSIT scores for the two groups are shown as histograms. Bottom: Effect of age on total UPSIT score is removed and residual values of the two groups are histogrammed. b) Top: Regression of modified UPSIT score with age. Distributions of modified UPSIT scores for the two groups are shown as histograms. Bottom: Effect of age on modified UPSIT score is removed and residual values of the two groups are histogrammed. The 95% confidence intervals are also plotted in the top figures.