Table 2.

Neuropsychological scores from patients following prefrontal cortex resections^a

	WAIS-IV						Digit Span		WCST
	Cognitive level	FSIQ	VCI	PRI	PSI	WMI	Forw	Back	Cat	PE	NPE	CL	LTL
dlPFC 1	Superior	124	132	111	111	122	81	36	3	19	34	25	21
dlPFC 2	Average	106	110	92	111	108	62	16	0	3	2	1	1
dlPFC 3	Average	100	122	94	92	83	64	32	5	50	45	55	25
dlPFC 4	Average	100	103	98	89	111	96	31	4	27	27	34	16
dlPFC 5	High average	118	150	102	94	105	85	90	1	10	2	2	1
dlPFC 6b	High average	119	122	113	114	111	81	86	5	42	61	45	25
dlPFC 7b	Low average	82	98	86	71	80	95	86	3	14	12	16	16
dlPFC 8b	Low average	80	83	86	84	80	97	97	3	5	34	16	5
dlPFC 9b	Superior	126	130	115	114	122	62	19	4	27	92	58	25
PCS 1	Average	99	100	97	97	100	62	86	5	70	61	55	25
PCS 2	High average	110	108	109	105	108	86	19	5	77	50	45	25
PCS 3	Low average	82	95	88	74	83	97	97	0	2	1	1	1

^adlPFC, dlPFC resection sparing the PCS; PCS, prefrontal cortex resection impacting the PCS; FSIQ, Full-Scale Intelligence Quotient; VCI, Verbal Comprehension Index; PRI, Perceptual Reasoning Index; PSI, Processing Speed Index; FSIQ, VCI, PRI, PSI, and WMI were derived from the WAIS-IV and have a mean of 100 and SD of 15. Digit Span: Forw, immediate recall of aurally presented digits in the order given (in performance percentiles); Back, same but recall in reverse order; Cat, number of categories completed; PE, perseverative errors; NPE, nonperseverative errors; CL, conceptual level responding; LTL, learning to learn (all in percentiles relative to normative performance from general population matched for age and education).

^bExcluded because of failure to maintain central fixation when the memory cue appeared in the periphery for a minimum of 50 trials.