目的比较被试对相同刺激在不同诱导条件下认知差异,探讨倒置效应和局部变化在面孔识别中的意义。方法采用诱导启动范式,使被试将相同视觉刺激分别认知为简化面孔和字母组合,并比较在不同认知条件下反应的准确率和反应时间的差异。结果...目的比较被试对相同刺激在不同诱导条件下认知差异,探讨倒置效应和局部变化在面孔识别中的意义。方法采用诱导启动范式,使被试将相同视觉刺激分别认知为简化面孔和字母组合,并比较在不同认知条件下反应的准确率和反应时间的差异。结果被试倒置对面孔组和字母组的准确率无显著影响[（94.01±7.75）%vs（93.97±6.63）%,（89.58±8.61）%vs（88.80±6.03）%,P〉0.05];倒置对面孔组和字母组的两种刺激的反应时间亦无显著影响[（3080.87±712.52）m s vs（3156.88±436.92m s,2754.84±831.28）m s vs（2706.24±929.52m s,P〉0.05）];反应时和准确率的相关均未达显著性水平（r=0.021~0.418,P〉0.05）。结论在局部变化条件下,由于不涉及面孔刺激的结构性认知加工,倒置不会显著地影响其细节特征的认知,间接地证明了面孔倒置效应的结构性认知的加工机制。展开更多
The latest dataset from the SCS(South China Sea)Monsoon Experiment is used to investigate the features of abrupt change in some meteorological elements before,during and after the summer monsoon's establishment in...The latest dataset from the SCS(South China Sea)Monsoon Experiment is used to investigate the features of abrupt change in some meteorological elements before,during and after the summer monsoon's establishment in 1998 and explore its onset characteristic process.We have arrived at a preliminary conclusion that the 1998 Asian summer monsoon is established first in the SCS as early as May 23,which is representative of the earliest indicator of the conversion from a winter into a summer monsoon situation in Asia;the continued retreat eastward of the western Pacific subtropical high from the SCS region has direct effect on the SCS summer monsoon establishment because the withdrawal favors the release of unstable energy,responsible for the sudden onset of the monsoon.Our tentative investigation indicates that the eastward extension of the westerly and rainfall band from the equatorial Indian Ocean into the Indo-China Peninsula and the southward spreading of an active South-China stationary front,acting as the interaction between mid and low latitude systems,are likely to be the characteristic events contributing to the subtropical high's eastward retreating and the summer monsoon's onset over the SCS.展开更多
文摘目的比较被试对相同刺激在不同诱导条件下认知差异,探讨倒置效应和局部变化在面孔识别中的意义。方法采用诱导启动范式,使被试将相同视觉刺激分别认知为简化面孔和字母组合,并比较在不同认知条件下反应的准确率和反应时间的差异。结果被试倒置对面孔组和字母组的准确率无显著影响[（94.01±7.75）%vs（93.97±6.63）%,（89.58±8.61）%vs（88.80±6.03）%,P〉0.05];倒置对面孔组和字母组的两种刺激的反应时间亦无显著影响[（3080.87±712.52）m s vs（3156.88±436.92m s,2754.84±831.28）m s vs（2706.24±929.52m s,P〉0.05）];反应时和准确率的相关均未达显著性水平（r=0.021~0.418,P〉0.05）。结论在局部变化条件下,由于不涉及面孔刺激的结构性认知加工,倒置不会显著地影响其细节特征的认知,间接地证明了面孔倒置效应的结构性认知的加工机制。
基金-Research on the Formation Mechanism and Prediction Theory of Severe Climate Disasters in China(G1998040900-Part 1)and China Scaling Project A"SCSMEX".
文摘The latest dataset from the SCS(South China Sea)Monsoon Experiment is used to investigate the features of abrupt change in some meteorological elements before,during and after the summer monsoon's establishment in 1998 and explore its onset characteristic process.We have arrived at a preliminary conclusion that the 1998 Asian summer monsoon is established first in the SCS as early as May 23,which is representative of the earliest indicator of the conversion from a winter into a summer monsoon situation in Asia;the continued retreat eastward of the western Pacific subtropical high from the SCS region has direct effect on the SCS summer monsoon establishment because the withdrawal favors the release of unstable energy,responsible for the sudden onset of the monsoon.Our tentative investigation indicates that the eastward extension of the westerly and rainfall band from the equatorial Indian Ocean into the Indo-China Peninsula and the southward spreading of an active South-China stationary front,acting as the interaction between mid and low latitude systems,are likely to be the characteristic events contributing to the subtropical high's eastward retreating and the summer monsoon's onset over the SCS.
