Table 3. The number of subject who performed above chance accuracy of binomial distribution in each perturbation level.

	0% vs. 15%	15% vs. 30%	30% vs. 45%	45% vs. 60%
Patients (n = 17)	15 (75.44)*	13 (69.12)	3 (51.88)	2 (51.88)
Controls (n = 16)	16 (89.06)	16 (82.19)	9 (65.47)	1 (52.5)

*Mean accuracy (% correct).