作者
Susann Schaffer, Anna Schubö, Cristina Meinecke
发表日期
2011/6/1
期刊
International Journal of Psychophysiology
卷号
80
期号
3
页码范围
198-209
出版商
Elsevier
简介
Event-related potentials and behavioural performance as a function of target eccentricity were measured while subjects performed a texture segmentation task. Fit-of-structures, i.e. easiness of target detection was varied: in Experiment 1, a texture with peripheral fit (easier detection of peripheral presented targets) and in Experiment 2, a texture with foveal fit (easier detection of foveal presented targets) was used. In the two experiments, the N2p was sensitive to target eccentricity showing larger amplitudes for foveal targets compared to peripheral targets, and at the foveal position, a reversal of the N2p differential amplitude effect was found. The anterior P2 seemed sensitive to the easiness of target detection. In both experiments the N2pc varied as a function of eccentricity. However, the P3 was neither sensitive to target eccentricity nor to the fit-of-structures. Results show the existence of a P2/N2 complex (Potts and …
引用总数
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学术搜索中的文章
S Schaffer, A Schubö, C Meinecke - International Journal of Psychophysiology, 2011