Errors on the Trail Making Test Are Associated with Right Hemispheric Frontal Lobe Damage in Stroke Patients

Table 2

Neuropsychological results (number of subjects) and Brunner-Munzel test statistics (max. z, over various TMT error scores.

TMT error scores	no errors	1 error	2 errors	max.
TMT-A, sequencing errors (type C)	26	2	2	2.425	3.452
TMT-B, total errors	9	8			3.501
TMT-B, shifting errors (type A)	18	9	2	3.084	3.381
TMT-B, shifting errors (type B)	20	6	4		3.285
TMT-B, shifting errors (type A + B)	16	7	7		2.996
TMT-B, sequencing errors (type C)	28	2	0	3.154	3.154
TMT-B, sequencing errors (type D)	22	6	2		3.403
TMT-B, sequencing errors (type C + D)	20	8	2		3.285

Note: < .05. ⁺All patients who made two or more than two errors of either type on the TMT-B (i.e., TMT-B total errors) had frontal lesions in Stuss et al.’s [24] study.