perform the meta-analysis itself [37, 38, 43]. Prior to the actual meta-analytical calculations, four mask outliers were identified in the input data and were subjected to a plausibility check. In one case, for a coordinate reported from Yeh et al. [44] (x = 28, y = 52, z = 51), we suspected a missing negative sign. According to the anatomical label in the original publication, the sign of the y-coordinate was set to (−) as recommended in the User Manual for GingerALE 2.3 (https://brainmap.org/ale). Now the coordinate reads x = 28, y = −52, z = 51. Another outlier was located a few millimeters next to the brainstem, which could be caused by the transformation processes (Crespi et al. [45], x = −6, y = −9, z = −24). This coordinate, as well as the other two mask outliers (Harris et al. [46], x = 15, y = 46, z = −55 and x = −44, y = 18, z = −53), remained in the data set, because we could not clarify the exact position. The overall number of mask outliers was below the critical limit of 3% (see User Manual for GingerALE 2.3, https://brainmap.org/ale/). No sample overlap was identified
