Table 2.

Table of polynomial fit diagnostics for extra-occipital (perisylvian lobes) beta oscillation laterality in development.

Perturbation	Model	R2	adj. R2	AICc
ERD	Linear	0.24	0.23	− 115.6
	Quadratic	0.24	0.22	− 113.6
	Cubic	0.24	0.17	− 111.4
ERS	Linear	0.12	0.11	− 109.6
	Quadratic	0.17	0.15	− 111.6
	Cubic	0.17	0.13	− 109.3

Models are of laterality indices of low-beta event-related desynchronization and event-related synchronization as a function of age for each participant (n = 78).

Parsimonious model fit based on corrected Akaike’s Information Criterion (AIC_C) is bolded.