CORTICAL POTENTIALS DURING GAP AND NON-GAP PARADIGMS USING MANUAL RESPONSES IN HUMANS

被引:15
作者
GOMEZ, C [1 ]
ATIENZA, M [1 ]
LOPEZMENDOZA, D [1 ]
GOMEZ, GJ [1 ]
VAZQUEZ, M [1 ]
机构
[1] UNIV SEVILLE, DEPT LENGUAJES & SIST INFORMAT, SEVILLE, SPAIN
关键词
GAP CONDITION; MANUAL REACTION TIMES; VISUAL EVOKED POTENTIAL; FRONTAL NEGATIVITY; P300; EXPRESS SACCADES;
D O I
10.1016/0304-3940(95)11296-9
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
An experiment was conducted on naive human subjects to measure the time benefits on finger reaction times produced by the offset of a central fixation point 200 ms before the appearance of a target stimulus in the periphery. Subjects produced a shift advancement of manual reaction times. Simultaneously, the event-related potentials were recorded. The gap paradigm induced offset visual evoked potentials and a frontal negativity, it also induced a higher P300 than the non-gap condition. The results suggest that the gap promotes the speeding of the response by a cortical priming.
引用
收藏
页码:107 / 110
页数:4
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