[Eeglablist] a question about the P170 and P200 in word/character naming

[赵 婧]

Dear all,
        I conducted a Chinese character naming task. In the offline-analysis, the grand-averaged waves showed a large P170 in the anterior sites (e.g. F1/2, F3/4, FC1/2, FC3/4). In contrast, a small P200 followed the great P170, and mainly emerged in the anterior (frontral-central sites, e.g. FC1/2, FC3/4, C1/2, C3/4). The peak of P170 was about 170 ms, but the peak of P200 was present at around 270 ms, is it normal for the P200 component? In some previous studies, the P200 was always peaked at about 200-220 ms. So, I am not sure about the current P200, and I am puzzled about the P170, is it similar with N170, reflecting the orthographic processing?


Best wishes!

Zhao Jing




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