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fMRI research has revealed that cerebellar lobule VIIb/VIIIa exhibits load-dependent activity that increases with the number of items held in visual working memory. However, it remains unclear whether these cerebellar responses reflect processes specific to visual working memory or more general visual attentional mechanisms. To investigate this question, we examined whether cerebellar activity during the delay period of a visual working memory task is selective for stimuli held in working memory. A sample of male and female human subjects performed a visual working memory continuous report task in which they were retroactively cued to remember the direction of motion of moving dot stimuli. Cerebellar lobule VIIb/VIIIa delay-period activation accurately decoded the direction of the remembered stimulus, as did frontal and parietal regions of the dorsal attention network. Arguing against a motor explanation, no other cerebellar area exhibited stimulus-specificity, including the oculomotor vermis, a key area a...Nov 19, 2020