Table 2. ARMA and ARFIMA model fits.

Subject	Paradigm	Best Model Fit (BIC)	Estimated d value
A	Task 1	ARFIMA(0,d,0)	0.2
B	Task 1	ARFIMA(0,d,0)	0.24
	Task 2 (1000)	ARMA(2,0)	−
C	Task 1	ARFIMA(0,d,0)	0.24
	Task 2 (500)	ARFIMA(0,d,0)	0.23
D	Task 1	ARFIMA(1,d,1)	0.32
	Task 2 (500)	ARMA(2,3)	−
	Task 2 (1000)	ARFIMA(2,d,1)	0.24
E	Task 2 (1000)	ARMA(2,1)	−
F	Task 2 (1000)	ARFIMA(1,d,1)	0.24
G	Task 1	ARFIMA(0,d,0)	0.25
	Task 2 (500)	ARFIMA(0,d,0)	0.13
	Task 2 (1000)	ARFIMA(0,d,0)	0.21
H	Task 2 (500)	ARMA(1,0)	−
I	Task 2 (500)	ARFIMA(1,d,1)	0.08
J	Task 1	ARMA(0,0)	−
Average			0.22±0.06