STEADY-STATE VIBRATION EVOKED-POTENTIALS - DESCRIPTION OF TECHNIQUE AND CHARACTERIZATION OF RESPONSES

被引：126

作者：

SNYDER, AZ ^{[1
]}

机构：

[1] WASHINGTON UNIV,SCH MED,DEPT NEUROL & NEUROL SURG,ST LOUIS,MO 63110

来源：

ELECTROENCEPHALOGRAPHY AND CLINICAL NEUROPHYSIOLOGY | 1992年 / 84卷 / 03期

关键词：

SOMATOSENSORY EVOKED POTENTIAL; SPATIOTEMPORAL MODELING; STEADY-STATE; VIBRATION;

D O I：

10.1016/0168-5597(92)90007-X

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Steady-state scalp evoked potentials were recorded in response to amplitude modulated vibration applied to the fingers and palmar surface of one hand. Evoked response dependence on the frequency of amplitude modulation in the 2-40 Hz range was studied in a group of normal young adult volunteers. Response amplitude was greatest at low amplitude modulation frequencies. The greatest signal to EEG noise ratios were found at modulation frequencies near 26 Hz. At modulation frequencies near 26 Hz the steady-state response latency was found to be 58+/-14 msec. Inverse dipole modeling localized the steady-state evoked response generators in or near somatosensory cortex with the dipole moment orientation being predominantly in the anterior-posterior direction.

引用

页码：257 / 268

页数：12

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