Olfactory response as a marker for Alzheimer’s disease: Evidence from perceptual and frontal lobe oscillation coherence deficit
Fig 3
a) Percentage of correct answers for each UPSIT (Iran-SIT) odor identification question. The x-axis denotes the tested odors and is sorted from the left by the number of correct answers that the mild AD patients gave. Hence, the leftmost odor is the one that the mild AD patients identified most. The y-axis is the percentage of correct answers to each odor identification question in each group. Two odors that are statistically significant in distinguishing between mild AD patients and healthy participants are denoted by + and x marks. b) The number of correct answers for each UPSIT (Iran-SIT) odor identification question divided into five-year age bins. The shade of each bin denotes the number of correct answers. Green (light) pixels indicate that most participants in the corresponding age bin answered the question correctly, and the blue (dark) pixels suggest that most of the participants were unable to identify the presented odor. The upper diagram is for the healthy participants, and the lower diagram is for the mild AD patients. The two statistically significant odors are denoted by dashed boxes.