Olfactory response as a marker for Alzheimer’s disease: Evidence from perceptual and frontal lobe oscillation coherence deficit
Fig 4
a) Beta-band component of a sample epoch from the data of the Fz and Cz electrodes for one AD (top) and one healthy (bottom) participant. b) Gamma-band component of a sample epoch from the data of the Fz and Cz electrodes for one AD (top) and one healthy (bottom) participant. c) Top: Regression of beta-band ImCoh value with age. Values for the two groups are shown as histograms. Bottom: Age-adjusted beta-band ImCoh values are shown as histograms for the two groups. d) Top: Regression of gamma-band ImCoh value with age. Values for the two groups are shown as histograms. Bottom: Age-adjusted gamma-band ImCoh values are shown as histograms for the two groups. e) Statistical significance of the gamma-band ImCoh value difference between mild AD patients and healthy participants. The Fz-Cz connection is the most significant connection with p-value < 0.05. f) The ImCoh value of the Fz-Cz connection measured in each frequency band. Statistically significant frequency bands are denoted by + and x marks.