Parker D M, Lishman J R, Hughes J
Department of Psychology, Kings College, University of Aberdeen, Scotland.
Perception. 1992;21(2):147-60. doi: 10.1068/p210147.
Factors which govern the temporal integration of spatial information were examined in a group of five experiments. A series of high-pass and low-pass spatially filtered versions of a visual scene were generated. Observers' ratings of these filtered versions of the scene for perceived image quality indicated that quality was determined both by the bandwidth of spatial information and the presence of high-spatial-frequency edge information. When sequences of three different versions of the scene were presented over an interval of 120 ms the perceived quality of the resulting composite image was determined both from the ratings of the individual components of that sequence and from the order in which these components were presented. When the order of spatial information in a sequence moved from coarse to fine detail the perceived quality of the composite image was significantly better than when the order moved from fine to coarse. This evidence of a coarse-to-fine bias in pattern integration was further investigated with a detection paradigm. The pattern of errors once again indicated that temporal integration of spatial information was superior when a coarse-to-fine mode of information delivery was employed. Taken together the data indicate that the pattern-integration mechanism has an inherent order bias and does not accumulate spatial information so efficiently when the 'natural' coarse-to-fine order is violated.
在一组五项实验中，对控制空间信息时间整合的因素进行了研究。生成了一系列视觉场景的高通和低通空间滤波版本。观察者对这些场景滤波版本的感知图像质量评分表明，质量既由空间信息的带宽决定，也由高空间频率边缘信息的存在决定。当在120毫秒的时间间隔内呈现三个不同版本的场景序列时，所得合成图像的感知质量既取决于该序列各个组成部分的评分，也取决于这些组成部分的呈现顺序。当序列中空间信息的顺序从粗略细节变为精细细节时，合成图像的感知质量明显优于顺序从精细变为粗略时。用检测范式进一步研究了这种模式整合中从粗到细偏差的证据。误差模式再次表明，当采用从粗到细的信息传递模式时，空间信息的时间整合效果更佳。综合来看，数据表明模式整合机制具有内在的顺序偏差，当“自然”的从粗到细顺序被违反时，空间信息的积累效率不高。
