Group average (and standard deviation) of performance data (d’ and RT) on the N-back task and subjective value of the cognitive effort discounting task.

Note that subjective values of higher N-back levels are all relative to level 1, thus no values are available for level 1.

请注意，所有更高阶N-back（N-back）任务层级的主观值均以层级1作为参照基准，因此层级1无对应数值。