归类任务中类别材料的代表性程度及时间间隔对负启动效应的影响

发布时间：2018-03-05 18:06

本文选题：代表性程度　切入点：负启动效应　出处：《沈阳师范大学》2017年硕士论文　论文类型：学位论文

【摘要】：本研究采用相继分步启动显示的NP范式来研究归类任务中类别材料的代表性程度及时间间隔对负启动效应的影响。具体研究内容如下:研究一,对分步启动显示范式的验证,证明修改后的范式是否仍然会出现负启动效应。结果表明,忽略重复条件的反应时显著大于控制条件下的反应时,即出现了负启动效应。预实验,对接下来要用的实验材料进行评定并归类,即对水果类词语和家具类词语材料的筛选和代表性程度的划分。水果类词语和家具类词语分别分成代表性程度高、代表性程度中和代表性程度低三类。研究二,把预实验筛选好的词汇按启动显示中分心刺激和靶刺激的代表性程度高、中、低分别进行匹配组合。通过E-prime 1.0编程后,采用2×3被试内设计。结果显示,分心刺激代表性程度为高的试验出现了负启动效应且显著,分心刺激代表性程度为中的负启动效应不显著,而分心刺激代表性程度为低的则出现的负启动效应的反转即正启动效应。研究三,延长启动显示中分心刺激与靶刺激的呈现时间至300ms。结果显示,与第二个实验相反。分心刺激代表性程度高的出现了负启动效应的反转即正启动效应,而分心刺激代表性程度低的则出现了负启动效应且差异显著。通过对无时间间隔和有时间间隔进行独立样本t检验,发现差异显著即时间间隔对负启动效应有影响。
[Abstract]:In this study, the NP normal form of sequential stepwise priming display was used to study the effects of representativeness and time interval on negative priming effect in categorization tasks. The main contents of this study are as follows: first, the verification of stepwise priming display paradigm. The results show that the negative priming effect occurs when the reaction time of ignoring the repeated condition is significantly larger than that under the control condition. To evaluate and classify the experimental materials to be used, that is, to screen and classify the materials of fruit words and furniture words, and to divide the fruit words and furniture words into representative ones. There are three types of representativeness and low representativeness. In the second study, according to the representativeness of distraction stimulus and target stimulus in priming display, the pre-experiment selected words were matched separately by E-prime 1.0 program. The results showed that the negative priming effect was significant in the experiment with high representativeness of distraction stimulus, but the negative priming effect was not significant when the representativeness of distraction stimulus was middle. The reverse of the negative priming effect is the positive priming effect when the representativeness of the distraction stimulus is low. Study 3, prolonging the presentation time of the distraction stimulus and the target stimulus to 300ms. the results show that, Contrary to the second experiment, the reverse of negative priming effect was found in the high representativeness of the distracting stimulus, that is, the positive priming effect. On the other hand, the negative priming effect was found in those with low representativeness of distraction stimulus, and the difference was significant by the independent t-test of no time interval and time interval, which indicated that the time interval had influence on negative priming effect.
【学位授予单位】：沈阳师范大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：B842

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