Our discussion of genetic associations of the individual neurophysiological measures found in Chorlian et al. (2017); Meyers et al. (2019, 2021); Chorlian et al. (2023) and inspired by Stead et al. (2006) and of the utilization of the covariance of association trajectories (via sparse PCA) in Chorlian et al. (2023) suggests that some way of bringing these elements together with analysis presented here may provide concrete evidence for some of the ideas quoted from Mitteroecker and Bookstein (2009) in our introductory section.