Table 2.

Cognitive test battery

Test	Cognitive domain(s)
Visual Analogue Scale	Fatigue and energy (before and after examination)
Controlled Oral Word Association Test [41]	Verbal word fluency
Semantic Category Fluency [42]	Verbal word fluency
Judgment of Line Orientation Test [41]	Visual-spatial processing
Rey Verbal Learning Test [43, 44]	Learning and memory
Brief Visuospatial Memory Test-Revised [45]	Learning and memory
Symbol Digit Modalities Test [46]	Information processing speed and working memory
Paced Auditory Serial Addition Test [36]	Information processing speed, flexibility and working memory
Trail Making Test [37]	Information processing speed, attention and concept shifting and executive functioning
Delis-Kaplan Executive Function System Design Fluency Test [38]	Fluency in generating visual patterns, response inhibition and executive functioning
Delis-Kaplan Executive Function System Color Word Interference Test [38]	Information processing speed, attention and response inhibition and executive functioning