Ortiz T, Fernández A, García de León M
Departamento de Psicobiología, Universidad Complutense, Madrid.
Arch Neurobiol (Madr). 1991 Sep-Oct;54(5):223-8.
Visual evoked responses were recorded in response to a series of consonants and non-linguistic signs randomly presented. We compared, with a sample of 16 young volunteers, P300 and N400 latency and amplitude in order to detect possible asymmetries. Results in amplitude showed a significant asymmetry within right hemisphere, both in P300 and N400 components. Latency results failed to present any significant difference during the discrimination of consonants, while non-linguistic signs discrimination reflect an asymmetrical tendency in P300 component.
记录了对一系列随机呈现的辅音和非语言符号做出反应时的视觉诱发电位。我们以16名年轻志愿者为样本，比较了P300和N400的潜伏期和波幅，以检测可能存在的不对称性。波幅结果显示右半球内P300和N400成分均存在显著不对称。在辅音辨别过程中，潜伏期结果未呈现任何显著差异，而非语言符号辨别则反映出P300成分存在不对称倾向。
