Huotilainen M, Tiitinen H, Lavikainen J, Ilmoniemi R J, Pekkonen E, Sinkkonen J, Laine P, Näätänen R
Department of Psychology, University of Helsinki, Finland.
Neuroreport. 1995 Apr 19;6(6):841-4. doi: 10.1097/00001756-199504190-00004.
Cortical activation in response to two types of auditory stimuli, constant-frequency tones and frequency glides, was studied by measuring the magnetic field outside the head using a whole-head 122-channel magnetometer. Both the magnetic N1m and sustained responses were located in the supratemporal plane of the primary auditory cortex. The sustained responses both to constant-frequency tones and frequency glides reflect tonotopic organization of the auditory cortex both in depth and direction, thus revealing the underlying neuroanatomical structure of the auditory cortex.
通过使用全头122通道磁力计测量头部外部的磁场，研究了对两种听觉刺激（恒定频率音调和平滑频率变化）的皮质激活情况。磁N1m和持续反应均位于初级听觉皮质的颞上平面。对恒定频率音调和频率平滑变化的持续反应，均在深度和方向上反映了听觉皮质的音调组织，从而揭示了听觉皮质潜在的神经解剖结构。
