…Users performed, follow- ing a cue-guided experimental paradigm, five distinct mental tasks (MT). MTs include mental word association (condition WORD), mental subtraction (SUB), spatial navigation (NAV), right hand motor imagery (HAND) and feet motor imagery (FEET). One single experimental run consisted of 25 cues, with 5 of each mental task. Cues were presented in random order.
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…Mental Arithmetic (Dataset B) For the visual instruction of the MA task, an initial subtraction such as 'three-digit number minus one-digit number' (e.g., 384-8) appeared at the center of the screen for
…Seven kinds of mental tasks have been designed, involving three tasks of simple limb motor imagery (left hand, right hand, feet), three tasks of compound limb motor imagery combining hand with hand/foot
…Subjects were also asked to rate their perceived mental workload after each stage on a rating scale of 1 to 9 and the ratings are provided in a separate file.
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