Abnormal brain activity patterns during spatial working memory task in patients with end-stage renal disease on maintenance hemodialysis: a fMRI study.

Analysis within the groups revealed that as the memory task difficulty levels increased from 0-back to 2-back, the performance accuracies of the two groups decreased (presented a decreasing trend, P < 0.05), and the reaction times were prolonged (presented an increasing trend, P < 0.05), thus indicating that there was no speed-accuracy trade-off effect.

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