The ECD locations of the N1m responses in the anterior-posterior and superior-inferior dimensions. These were located in a restricted cortical area in both the left and the right hemisphere. The ECDs for the vowels with periodic (/a/per & /u/per) excitation were anterior to those for aperiodic (/a/aper & /u/aper) and tonal (/a/tone & /u/tone) excitation. Bars indicate standard error of the mean.
Tiitinen et al. BMC Neuroscience 2005 6:62 doi:10.1186/1471-2202-6-62