Onofrj M, Fulgente T, Bazzano S, Colamartino P, Malatesta G, Ferracci F
Clinica Neurologica Università di Chieti, Italy.
Electromyogr Clin Neurophysiol. 1993 Jan-Feb;33(1):33-42.
Event related potentials (ERPs) to auditory and visual oddball paradigms were recorded from 19 scalp derivations in 10 controls. Three different reference systems were used: the linked earlobes (LE), the computer calculated mean reference (MR), and a calibrated sterno-vertebral extracephalic reference (EC). The distribution of ERPs was represented on single plane maps (quadratic interpolation, 4-NN method). With LE reference N2, P3a-P3b had no polarity reverted counterparts on the scalp. With EC reference a negativity was recorded on T3-T4 (and partly T5-T5) derivations with the same latency as P3a-P3b vertex component. With MR the N2, P3a-P3b components at vertex were paralleled by polarity reverted counterparts on anterior frontal, temporal and occipital derivations.
从10名对照者的19个头皮导联记录了与听觉和视觉Oddball范式相关的事件相关电位（ERP）。使用了三种不同的参考系统：双侧耳垂（LE）、计算机计算的平均参考（MR）和校准的胸骨-椎体颅外参考（EC）。ERP的分布在单平面地图上表示（二次插值，4-NN方法）。使用LE参考时，N2、P3a - P3b在头皮上没有极性反转的对应成分。使用EC参考时，在T3 - T4（部分在T5 - T5）导联记录到一个负电位，其潜伏期与P3a - P3b顶点成分相同。使用MR时，顶点处的N2、P3a - P3b成分在前额、颞部和枕部导联有极性反转的对应成分与之平行。
