Brain and nerve = Shinkei kenkyū no shinpo
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Awake surgery has been reported to play a role in the safe removal of brain tumors and detection of the functional localization of the cortex or neuronal tracts. In our hospital, from November 2004 to May 2007, we performed awake surgery with continuous tasks in 33 cases of brain tumors within or near the primary motor area (M1). The relationship between the extent of resection and postoperative motor function in awake surgery cases was compared with that in cases of surgery under general anesthesia, which were performed prior to November 2004. ⋯ Moreover, various new findings regarding the function of the cortex or neuronal tract have been reported in awake surgery. We discussed the advantages and future directions of awake surgery. In conclusion, awake surgery plays an important role in neurosurgery and neuroscience.