Prevec T S, Ribarić-Jankes K
Institute of Clinical Neurophysiology, Medical Centre Ljubljana, Slovenia.
Pflugers Arch. 1996;431(6 Suppl 2):R301-2. doi: 10.1007/BF02346388.
The aim of this study was to establish whether functional characteristics of the somatosensory system structures in man comply with the frequency following response (FFR) generators. Somatosensory cerebral evoked potentials (SsCEP) were recorded by skin electrodes, and spinal somatosensory evoked potentials (SpEP) both by epidural and skin electrodes. In SpEP and SsCEP to trains of electrical or mechanical stimuli, a decrease of the amplitude to subsequent stimuli was found. SpEP were also attenuated by higher stimulation rates. It is highly improbable, therefore, that somatosensory system can contribute to the FFR-like response recorded in profoundly deaf people.
本研究的目的是确定人类体感系统结构的功能特性是否符合频率跟随反应（FFR）发生器。通过皮肤电极记录体感脑诱发电位（SsCEP），通过硬膜外电极和皮肤电极记录脊髓体感诱发电位（SpEP）。在对电刺激或机械刺激序列的SpEP和SsCEP中，发现后续刺激的振幅降低。较高的刺激频率也会使SpEP衰减。因此，体感系统极不可能对深度聋人记录到的类似FFR反应有贡献。
