Enhanced late components of AEFs associated with the temporal lobe lesions
Enhanced late components of AEFs associated with the temporal lobe lesions
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与颞叶病变相关的 AEF 晚期成分增强
DOI：
10.1097/00001756-200105080-00048
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发表时间：
2001
期刊：
影响因子：
1.7
通讯作者：
Kenji Mitsumori
中科院分区：
文献类型：
--
作者：
K. Kamada;F. Takeuchi;Tastuo Harada;Ban Qiao;K. Houkin;S. Kuriki;Y. Iwasaki;Kenji Mitsumori
我们通过每4000毫秒呈现一次纯音爆发来记录11名患者的听觉诱发磁场(AEF)，这些患者的脑部病变位于听皮质或其附近。损伤侧的AEF显示出多个延迟AEF(慢的AEF)的偏转，8名患者在刺激后∼320ms(D1)、1030ms(D2)和1600ms(D3)达到峰值。所有慢性期AEF的偶极子均集中在未累及脑部病变的颞上区。D_1、D_2和D_3偶极子分别均匀向上、向下和向上。偶极矩变化范围为12~122nM，与潜伏期无一致关系。这是首次报道在有颞叶病变的病例中出现缓慢的AEFS。
We recorded auditory evoked magnetic fields (AEFs) by presenting pure tone bursts once every 4000 ms in 11 patients with a brain lesion in or in the vicinity of the auditory cortex. AEFs on the damaged side revealed several enhanced deflections in late-latency AEFs (slow AEFs), peaking at ∼320 (D1), 1030 (D2) and 1600 (D3) ms post-stimulus in eight patients. All the dipoles of slow AEFs were concentrated in the superior temporal regions which were not involved by brain lesions. D1, D2 and D3 dipoles were uniformly upward, downward and upward, respectively. The dipole moment varied from 12 to 122 nAm and had no consistent relationship with latency. This is the first report describing slow AEFs in cases with temporal lobe lesions.