Fig. 2: Cortex-wide distribution of the mean over time of λ within each group.
From: Cortex-wide topography of 1/f-exponent in Parkinson’s disease
a, b Temporal evolution of λ over time in two specific regions (MT+C-NVA-lh and MTC-rh) for PD patients OFF medication (pale blue) and HC (pale red). Each line corresponds to one subject. Blue and red lines indicate group averages. c Temporal average \({\overline{\lambda }}_{G}\) of λG for each group G ∈ {HC, PD-ON, PD-OFF}. Here \(mean[{\overline{\lambda }}_{G}]\) and \(std[{\overline{\lambda }}_{G}]\) stand, respectively, for the mean and standard deviation of \({\overline{\lambda }}_{G}\) over the group G. The inside colour refers to the mean over the group. The border colour refers to the fluctuation of \({\overline{\lambda }}_{G}\) within the group G. d Difference of temporal average of λ between two groups Ga, Gb ∈ {HC, PD-ON, PD-OFF}. The inside colour refers to the difference between the means over the groups. The border colour refers to the averaged fluctuation of \(\overline{\lambda }\) combining the two groups Ga and Gb.
