空间距离对视觉工作记忆巩固的影响
发布时间：2018-07-14 16:00
【摘要】：以往研究发现,个体对不同类型的视觉信息进行视觉工作记忆巩固的模式存在差异,如对于方向信息,一次只能有一个项目被巩固进入视觉工作记忆系统,而对于颜色信息,个体则可以一次巩固两个项目进入视觉工作记忆系统。但对于视觉信息的巩固模式是否会受其他因素的影响,目前仍然没有明确的定论。本研究将探讨视觉信息的巩固模式是否可能受到记忆项目空间距离因素的影响。研究采用变化觉察范式、序列-同时呈现操作及控制记忆项目呈现间距的方法,通过3个实验考察记忆项目之间的空间距离是否能够影响个体对颜色信息和方向信息的巩固模式。在三种空间距离水平上序列呈现或同时呈现两个记忆项目,实验结果一致发现记忆项目之间的空间距离会对视觉工作记忆巩固模式产生明显影响,个体在同时呈现条件下的正确率会随着空间距离的增大而降低。这些结果表明对同一类视觉信息进行巩固的过程中所存在的项目数量限制并不是固定的,个体可以采用序列模式或有限容量的并行模式对同一类信息进行巩固,巩固的模式可能与视觉空间注意的分配以及视觉信息所能获得的注意资源有关。
[Abstract]:Previous studies have found that individuals have different patterns of visual working memory consolidation for different types of visual information, for example, for direction information, only one item can be consolidated into the visual working memory system at a time, while for color information, Individuals can consolidate two items at a time into the visual working memory system. However, there is still no clear conclusion as to whether the consolidation mode of visual information will be affected by other factors. This study will explore whether the consolidation model of visual information may be affected by the spatial distance of memory items. Using the paradigm of change awareness, sequence-presentation of operations and control of the presentation of memory items at the same time, Three experiments were conducted to investigate whether the spatial distance between memory items could affect the consolidation patterns of color information and direction information. The results showed that the spatial distance between memory items had a significant effect on the visual working memory consolidation model at three spatial distance levels. Under the condition of simultaneous presentation, the accuracy of individuals will decrease with the increase of spatial distance. These results indicate that the number of items in the process of consolidating the same type of visual information is not fixed, and individuals can consolidate the same type of information by using a sequential pattern or a parallel pattern with limited capacity. The consolidated pattern may be related to the allocation of visual spatial attention and the attention resources available to visual information.
【作者单位】： 辽宁师范大学脑与认知神经科学研究中心;
【基金】：国家自然科学基金项目(31571123)资助
【分类号】：B842.3
本文编号：2122174
[Abstract]:Previous studies have found that individuals have different patterns of visual working memory consolidation for different types of visual information, for example, for direction information, only one item can be consolidated into the visual working memory system at a time, while for color information, Individuals can consolidate two items at a time into the visual working memory system. However, there is still no clear conclusion as to whether the consolidation mode of visual information will be affected by other factors. This study will explore whether the consolidation model of visual information may be affected by the spatial distance of memory items. Using the paradigm of change awareness, sequence-presentation of operations and control of the presentation of memory items at the same time, Three experiments were conducted to investigate whether the spatial distance between memory items could affect the consolidation patterns of color information and direction information. The results showed that the spatial distance between memory items had a significant effect on the visual working memory consolidation model at three spatial distance levels. Under the condition of simultaneous presentation, the accuracy of individuals will decrease with the increase of spatial distance. These results indicate that the number of items in the process of consolidating the same type of visual information is not fixed, and individuals can consolidate the same type of information by using a sequential pattern or a parallel pattern with limited capacity. The consolidated pattern may be related to the allocation of visual spatial attention and the attention resources available to visual information.
【作者单位】： 辽宁师范大学脑与认知神经科学研究中心;
【基金】：国家自然科学基金项目(31571123)资助
【分类号】：B842.3
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