采用中国汉字谜，通过模拟wallas(1926)关于顿悟问题解决的四个阶段，探讨了酝酿期有效提示和无效提示对猜字谜的影响。结果发现：有效提示组被试比无效提示组猜对了更多的靶字谜，反应时也更短；在脑电水平上，酝酿期的有效提示谜比无效提示谜在左前额叶分别于300ms-400ms,400ms-600ms,600ms-800ms内引发了更大的P300-400成分、P400-600成分、P600-800成分。表明有效提示谜比无效提示谜对靶字谜问题的解决有更大促进作用。

Using Chinese logogriph material, Through simulation about the four stage model of insight problem solving created by wallas(1926), We explored how helpful hints and unhelpful hints influence the chinese logogriph problems solving. Result showed that: During incubation, helpful hints elicited a more positive ERP deflection(P300-400、P400-600、P600-800) than unhelpful hints in the time window from 300-400ms、400-600ms、600-800ms respectively After the onset of the stimuli. Maps of the P300-400、P400-600、P600-800 showed strong activity in the left prefrontal cortex. It is indicated that helpful hints show greater facilitation on the logogriphs solving than unhelpful hints.