the “slope” of the 1/f aperiodic frequency distribution (which falls off apart from the alpha peak) goes flatter with age

also the “alpha” peak also goes down with age too

[ratios of alpha/beta and alpha/theta and alpha/delta also matter but they may be more sensitive to neurodivergence than to age]

you can also, like, measure latency and amplitude of N200/P300/etc (b/c older people are both slower and have lower distinct amplitudes)

Neurable/Neurosity…