Feature integration in short or long termmemory of visual, auditory, and visual-auditory complex stimuli

在本研究项目中，我们研究了视觉刺激、听觉刺激和视听觉复合刺激特征的整合过程。我们设计了以下三个实验来阐明刺激的认知结构：a .在第一个实验中，被试判断一个测试刺激的特征与一个学习刺激的相应特征是否相同。在每次试验前，受试者被指示注意刺激的颜色、形式或大小。被指示的特征称为相关特征，其他特征称为无关特征。结果，相关特征的识别时间取决于学习和测试刺激之间的不相关特征的差异。b .在第二个实验中，受试者判断一个和弦是合拍还是走调。当质数与目标和弦的基音相同时，反应时间会加快。当启动音是目标和弦的第三或第五个音时，这种促进作用减弱，这些结果表明音调是和弦的认知单位。在第三个实验中，受试者阅读和发音视觉呈现的汉字。一些汉字沿着纵轴、横轴或两者都反转。结果表明，经过两次变换后的汉字的阅读时间并不是汉字阅读时间的单调函数。

In this research project, we studied integration processes of features of visual stimuli, auditory stimuli, and visual-auditory complex stimuli. We designed the following three experiments to clarify a cognitive structure of a stimulus.A.In the first experiment, subjects judged whether a feature of a test stimulus was same or not with the corresponding feature of a learning stimulus. Subjects were instructed to attend color, form, or size of the stimuli before each trial session. The instructed feature was called relevant feature and the other features were called irrelevant features. As a result, recognition time of the relevant feature depended on the difference of an irrelevant feature between the learning and the test stimulus.B.In the second experiment, subjects judged whether a chord, which followed a tone, was in tune or out of tune. Response time was facilitated when a prime was same with a base tone of the target chord. This facilitation reduced when a prime was the third or fifth tone of the target chord, These results implied that a tone was a cognitive unit of a chord.C, In the third experiment, subjects read and pronounced a kanji character visually presented. Some of kanji characters were reversed along with vertical axis, horizontal axis, or both. Result said, reading time of the kanji transformed by two transformations was not a monotonous function of the reading time of the kanji simply reversed.