Correction to: J Anesth (2017) 31:523–530 https://doi.org/10.1007/s00540-017-2343-1

Inadvertently, the Fig. 7 was published incorrectly in the original publication of the article. The correct Fig. 7 should be as below:

Fig. 7
figure 7

Correlations between the MPQ score and %BOLD signal changes. Activations at both the ACC and DLPFC were negatively correlated with the MPQ scores. MPQ scores of the McGill Pain Questionnaire Short Form, CP chronic pain patients, HC healthy control subjects, L left, ACC anterior cingulate cortex, DLPFC dorsolateral prefrontal cortex