Yoshiura T, Ueno S, Iramina K, Masuda K
Department of Radiology, Kyushu University, Fukuoka, Japan.
Brain Res. 1995 Dec 12;703(1-2):139-44. doi: 10.1016/0006-8993(95)01075-0.
The magnetic counterparts of middle latency auditory evoked responses (MLR) were measured for seven normal subjects with a 7-channel de superconducting quantum interference device (SQUID). The source of each component (Na, Pa, Nb and Pb) was estimated and plotted onto the individual magnetic resonance images (MRI). The source of Na, as well as those of Pa, Nb and Pb, was estimated to be in the supratemporal auditory cortex. The positions of Pa, Nb and Pb sources were compared with one another. No significant difference was observed between the positions of Pa and Nb sources. On the other hand, the source of Pb was found to be anterior to the sources of both Pa and Nb. It was suggested that there are more than two separate areas activated in the human auditory cortex during MLR.
使用7通道低温超导量子干涉装置（SQUID）对7名正常受试者测量了中潜伏期听觉诱发电位（MLR）的磁对应物。估计每个成分（Na、Pa、Nb和Pb）的来源并绘制在个体磁共振图像（MRI）上。估计Na以及Pa、Nb和Pb的来源位于颞上听觉皮层。比较了Pa、Nb和Pb来源的位置。在Pa和Nb来源的位置之间未观察到显著差异。另一方面，发现Pb的来源在Pa和Nb的来源之前。有人提出，在MLR期间，人类听觉皮层中有两个以上的独立区域被激活。
