Table 2.

Scores obtained in cognitive and functional abilities tests before and after tPBM.

Measures	S1		S2		S3
	Before	After	Before	After	Before	After
CDR^	1	0	0	0	0.5	0.5
FAQ^	5	4	0	0	1	0
HKLLT_I (z)#	−2.06	−0.22	−1.23	+0.94	–	–
CFT_I (z)#	−4.32	+0.23	–	–	−1.60	+0.27
CFT_P (z)#	−4.39	+0.49	−3.18	−3.18	–	–

CDR, Clinical Dementia Rating Scale; FAQ, Functional Activities Questionnaire; HKLLT_I (z), intrusion errors in the Hong Kong List Learning Test in terms of z-scores; CFT_I (z), intrusion errors in the Category Fluency Test (CFT) in terms of z-scores; CFT_P (z), perseveration errors in the Category Fluency Test in terms of z-scores.

^{^}Higher scores indicate more significant problems/difficulties.

^#Performance scores at least 1.0 SD below average at baseline in intrusion and perseveration errors are presented. Positive changes after tPBM indicate better performance.