Chart 1.

Description of 12 cognitive abilities evaluated by the eight tests applied in the study.

Abilities	Description	Tests
Sustained Attention	Capacity to maintain an attentional activity over a period of time	Trail Making Test -TMT (Part A)
Alternating Attention	Capacity to shift in focus and tasks	Trail Making Test - TMT (Part B)
Immediate Memory	Capacity to grasp an adequate amount of information and recall it immediately	Digit Span - Direct Order (WAIS-III)
Working Memory	Capacity to hold and manipulate information in mind for a short period of time	Digit Span - Reverse Order (WAIS-III)
Memory - Immediate Recall	Capacity to recall the information immediately after the stimulus	Rey Auditory Verbal Learning - RAVLT
Memory - Delayed Recall	Capacity to recall the information after a short period, usually 20 minutes after the stimulus	Rey Auditory Verbal Learning - RAVLT
Memory - Recognition	Capacity to recognize the information stored from a visual or verbal stimulus	Rey Auditory Verbal Learning - RAVLT
Executive Function	Ability enabling the individual to create plans, goal-setting, strategies, make decisions, monitoring, solving problems, mental flexibility and response initiation and inhibition	Wisconsin Card Sorting Test - WCST
Ideomotor Praxis	Capacity to assemble, build and draw from a mental model	Clock Drawing Test
Constructive Praxis	Capacity to assemble, build and draw from a concrete model	Cubes (WAIS- III)
Naming Ability	Capacity to name objects or pictures	Boston Naming Test - BNT
Verbal Fluency	Capacity to produce a quantity of words, usually within a restricted category	FAS