Beattie R C, Beguwala F E, Mills D M, Boyd R L
J Speech Hear Disord. 1986 Feb;51(1):63-70. doi: 10.1044/jshd.5101.63.
This study examined the effects of electrode placement on the early auditory evoked response in normally hearing subjects. The electrodes are termed noninverting, inverting, and common. Ten commonly used electrode combinations were evaluated. Both amplitudes and latencies of Waves I, III, and V were measured for each electrode combination. No mean differences in latencies were observed for Waves I, III, or V with any of the 10 electrode combinations. Similarly, no statistically significant Wave I or Wave III amplitude differences were found among the 10 electrode montages. However, larger Wave V amplitudes were found with placement of the noninverting electrode at the vertex (0.53 mu v) as compared to the upper forehead (0.39 mu v). Moreover, Wave V amplitudes were larger for inverting/common electrode placements at the seventh cervical vertebra/forehead, neck/forehead, and neck/neck (approximately 0.50 mu v) than for mastoid/mastoid and mastoid/forehead placements (approximately 0.40 mu v). Thus, three combinations of electrodes gave the largest Wave V amplitudes. These placements for the noninverting, inverting, and common electrodes, respectively, were (a) vertex-seventh-forehead, (b) vertex-neck-forehead, and (c) vertex-neck-neck.
本研究考察了电极放置对听力正常受试者早期听觉诱发电位的影响。电极分为非反相电极、反相电极和公共电极。对十种常用的电极组合进行了评估。测量了每种电极组合下I波、III波和V波的波幅和潜伏期。对于I波、III波或V波，在十种电极组合中的任何一种情况下，均未观察到潜伏期的平均差异。同样，在十种电极导联中，未发现I波或III波波幅存在统计学上的显著差异。然而，与前额上部（0.39 μv）相比，将非反相电极置于头顶时，V波的波幅更大（0.53 μv）。此外，在第七颈椎/前额、颈部/前额和颈部/颈部位置放置反相/公共电极时，V波的波幅（约0.50 μv）比乳突/乳突和乳突/前额位置（约0.40 μv）更大。因此，三种电极组合可产生最大的V波波幅。非反相电极、反相电极和公共电极的这些放置位置分别为：（a）头顶-第七颈椎-前额，（b）头顶-颈部-前额，以及（c）头顶-颈部-颈部。
