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首页> 外文期刊>Neuroscience Letters: An International Multidisciplinary Journal Devoted to the Rapid Publication of Basic Research in the Brain Sciences >Different generators in human temporal-parasylvian cortex account for subdural laser-evoked potentials, auditory-evoked potentials, and event-related potentials.
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Different generators in human temporal-parasylvian cortex account for subdural laser-evoked potentials, auditory-evoked potentials, and event-related potentials.

机译：人类颞甲旁侧皮层中的不同发生器负责硬膜下激光诱发电位，听觉诱发电位和事件相关电位。

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摘要

In order to localize cortical areas mediating pain we now report subdural cortical potentials evoked by auditory stimulation (auditory-evoked potentials - AEPs) and by cutaneous stimulation with a laser (laser-evoked potentials - LEPs). Stimulation with the laser evokes a pure pain sensation by selective activation of nociceptors. LEPs were maximal over the inferior aspect of the central sulcus and had the same polarity on either side of the sylvian fissure. AEPs were maximal posterior to the LEP maximum and had opposite polarity on opposite sides of the sylvian fissure, consistent with the location of a known generator in the temporal operculum. Auditory P3 (event-related) potentials were maximal over the temporal base. These findings demonstrate that the LEP generator is not in secondary somatosensory cortex on the parietal operculum and is different from the P3 generator.
机译：为了定位介导疼痛的皮质区域，我们现在报告通过听觉刺激（听觉诱发电位-AEP）和激光皮肤刺激（激光诱发电位-LEPs）诱发的硬膜下皮质电位。激光刺激通过选择性激活伤害感受器而引起纯粹的疼痛感。 LEP在中央沟的下侧最大，并且在侧裂的两侧具有相同的极性。 AEP位于LEP最大值的后方，并且在侧裂的相对两侧具有相反的极性，这与颞盖中已知发生器的位置一致。听觉P3（事件相关）电位在时间基础上最大。这些发现表明，LEP发生器不在顶the的次生体感皮层中，并且不同于P3发生器。

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