Table 4.

Descriptive results from the subtests of the computerized TAP battery for chronic pain patients and controls separately.

Neuropsychological tests	Controls M (SD)	Chronic pain patients M (SD)
COVERT SHIFT OF ATTENTION
Valid trial–right target	316.0 (63.0)	323.0 (59.1)
Valid trial–left target	322.6 (67.1)	326.8 (67.8)
Invalid trial–right target	374.2 (88.0)	379.8 (75.8)
Invalid trial–left target	352.0 (91.8)	355.6 (72.0)
SUSTAINED ATTENTION
Omissions 0–5 min.	3.0 (2.9)	2.9 (2.5)
Omissions 5–10 min.	3.0 (2.6)	4.0 (3.6)
Omissions 10–15 min.	2.7 (2.5)	3.7 (3.3)
WORKING MEMORY
Errors	1.7 (2.0)	2.7 (3.2)
Misses	1.3 (1.6)	1.7 (2.6)

In covert shift of attention, values are given in milliseconds. For sustained attention and working memory, absolute values are reported.