Table 2.

Task performance during functional MRI scanning

	Control			Consistent micrographia			Progressive micrographia
	Free writing	Attention on size	Attention on consistency	Free writing	Attention on size	Free writing ON	Free writing	Attention on consistency	Free writing ON
Mean size of the characters (cm2)	0.892 ± 0.128	0.978 ± 0.135	0.908 ± 0.132	0.558 ± 0.086a	0.842 ± 0.106b	0.740 ± 0.076c	0.636 ± 0.153a	0.773 ± 0.093b	0.661 ± 0.139
Mean size of the first character (cm2)	0.885 ± 0.129	0.971 ± 0.148	0.903 ± 0.111	0.579 ± 0.060a	0.829 ± 0.086b	0.770 ± 0.054c	0.821 ± 0.089	0.818 ± 0.102	0.837 ± 0.091
Mb value	0.003 ± 0.013	-0.001 ± 0.011	0.001 ± 0.012	− 0.007 ± 0.009	0.002 ± 0.009	− 0.009 ± 0.013	−0.061 ± 0.012a	− 0.020 ± 0.010b	− 0.058 ± 0.014
Speed (stroke/s)	0.946 ± 0.030	0.946 ± 0.030	0.946 ± 0.030	0.942 ± 0.028	0.938 ± 0.038	0.938 ± 0.025	0.929 ± 0.044	0.932 ± 0.032	0.940 ± 0.022

Values are (mean ± SD).

^aSignificant difference between patients and controls (repeated-measures ANOVA, post hoc t-test, P < 0.0001).

^bSignificant difference between attention and free writing condition within each group of patients (repeated-measures ANOVA, post hoc t-test, P < 0.0001).

^cSignificant difference between free writing ON and free writing condition within each group of patients (two-sample t-tests, P < 0.0001).