. 2015 Jun 11;11:1437–1442. doi: 10.2147/NDT.S82930

Table 1.

Performance on neuropsychological tests

Test	August 9, 2009	January 29, 2010	August 13, 2010	March 17, 2012	January 14, 2015	Reference values
IQ	114	114	116	115	118	>85 (normal)
VIQ	115	114	115	115	116	–
PIQ	111	111	114	112	116	–
Logical memory, immediate^a	9	6	3	13	8^c	23 (best)
Logical memory, delayed^a	8	7	2	14	0^c	23 (best)
TMT-A, time (seconds)^b	41.07	55.41	35	33	25.28^d	–
TMT-B, time (seconds)^b	83.25	82.62	67	50	57.09^d	–
DMS, percent correct^a	70	80	65	65	77.5	100 (best)
DMS, percent correct (simultaneous)^a	100	100	100	100	100	100 (best)
DMS, percent correct (all delays)^a	70	80	60	60	70^e	100 (best)
IED, stages completed^a	9	9	9	9	9	9 (best)
IED, total errors (adjusted)^b	13	11	8	12	11	–
PRM, percent correct, immediate^a	92	92	92	92	83.33^e	100 (best)
PRM, percent correct, delayed^a	67	92	75	67	83.33^e	100 (best)
RVP, total false alarms^b	2	1	0	1	0	0 (best)
RVP, probability of hit^a	0.81	0.59	0.78	0.89	0.96	1 (best)
SOC, problems solved in minimum moves^a	8	10	10	8	9	12 (best)
SWM, between errors^b	9	0	1	4	0	0 (best)
SWM, strategy^b	23	22	19	20	19	8 (best)–56 (worst)

Notes:

higher is better;

lower is better;

patient performed worse than before;

patient performed as well as the healthy control;

patient performed as well as before but worse than normal; DMS, IED, PRM, RVP, SOC and SWM are chosen from the Cambridge Neuropsychological Automated Test Battery.

Abbreviations: IQ, intelligence quotient; VIQ, verbal intelligence quotient; PIQ, performance intelligence quotient; TMT, trail-making test; DMS, delayed matching to sample; IED, intra-/extra-dimensional shift; PRM, pattern-recognition memory; RVP, rapid visual information processing; SOC, Stockings of Cambridge; SWM, spatial working memory.