内隐学习意识性动态发展的ERP特征

An Event-Related Potentials Study of Consciousness Movement in Implicit Learning

采用事件相关电位技术(ERP),通过算式符号判别任务,探讨反应-刺激时间间隔(RSI)的连续变化(RSI=250ms、500ms、750ms、1000ms)对序列学习意识性的影响及时空分布特征。实验结果表明:(1)序列学习意识性随RSI的增加而增加;(2)不同意识性认知加工存在大脑激活区域的差异,意识性程度越高,激活区域越广泛和弥散。意识性由小到大激活区域有由后向前连续变化的趋势。

This study adopted Event - Related Potentials（ERP） to investigate the behavioral characteristics and neural basis of consciousness movement in implicit sequence learning.The results shows that First,with the series changes of RSI,the implicit learning amounts are also changing accordingly.Along with the RSI boosting up,the specific gravity of conscious process is boosting up,but the specific gravity of unconscious process is reducing.Second,the scalp distribution of ERPs varies with different RSI of consciousness.The higher the consciousness process,the wider the scalp distribution appears.The spatial distribution is changing in continuousness.