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. 2014 Nov 27;3:82. Originally published 2014 Apr 2. [Version 2] doi: 10.12688/f1000research.3665.2

Figure 1. Timeline of the experiment and study procedure.

Figure 1.

Cognitive testing included two working memory tasks (auditory n-back and letter-number sequencing), a fluid intelligence task [matrix reasoning task, TONI-IV (Test of Non-verbal Intelligence Version IV)], two cognitive control tasks (Stroop and Flanker task), two processing speed tasks (symbol search and digit-symbol substitution task) and a short-term memory task (number-span task). In addition, subjective motivation and concentration were measured on a scale from 1 (minimal) to 10 (maximal).