Table 1.

Cognitive test battery and corresponding domains.

Neuropsychological test	Corresponding cognitive domain
Concept shifting test	Executive functioning, psychomotor speed
Categoric word fluency task	Executive functioning
Rey auditory verbal learning test	Verbal memory
Stroop color-word test	Attention
Memory comparison test	Working memory
Letter-digit substitution test	Information processing, psychomotor speed

Tests were assessed as described by (Lezak, 1995), except for the Concept shifting test (Houx and Jolles, 1994).