Ransley Kim, Goodbourn Patrick T, Nguyen Elizabeth H L, Moustafa Ahmed A, Holcombe Alex O
School of Psychology, University of Sydney.
School of Psychological Sciences, University of Melbourne.
J Exp Psychol Learn Mem Cogn. 2018 Oct;44(10):1678-1686. doi: 10.1037/xlm0000540. Epub 2018 Apr 26.
Humans have a limited capacity to identify concurrent, briefly presented targets. Recent experiments using concurrent rapid serial visual presentation of letters in horizontally displaced streams have documented a deficit specific to the stream in the right visual field. The cause of this deficit might be either prioritization of the left item based on participants' experience reading from left to right, or a right-hemisphere advantage specific to dual stimulation. Here we test the reading-experience hypothesis by using participants who have experience reading both a language written left-to-right (English) and one written right-to-left (Arabic). When tested with English letters, these participants showed a deficit, of a similar magnitude to that found previously, for reporting the item on the right. However, when the stimuli were Arabic letters the deficit was absent. This suggests that reading direction plays a large role in the second-target deficit. The pattern of participants' errors suggests where in the processing stream reading experience affects stimulus processing: Specifically, the error pattern suggests that the limited-capacity stage responsible for the deficit corresponds to a postsampling process such as consolidation into short-term memory. (PsycINFO Database Record (c) 2018 APA, all rights reserved).
人类识别同时呈现的短暂目标的能力有限。最近使用在水平位移流中同时进行快速序列视觉呈现字母的实验记录了右视野中特定流的缺陷。这种缺陷的原因可能是基于参与者从左到右阅读的经验对左侧项目的优先处理，或者是特定于双重刺激的右半球优势。在这里，我们通过使用既有从左到右书写的语言（英语）又有从右到左书写的语言（阿拉伯语）阅读经验的参与者来测试阅读经验假设。当用英语字母进行测试时，这些参与者在报告右侧项目时表现出与之前发现的类似程度的缺陷。然而，当刺激是阿拉伯字母时，缺陷就不存在了。这表明阅读方向在第二个目标缺陷中起很大作用。参与者的错误模式表明阅读经验在处理流中的何处影响刺激处理：具体而言，错误模式表明导致缺陷的有限容量阶段对应于诸如巩固到短期记忆中的采样后过程。（PsycINFO数据库记录（c）2018美国心理学会，保留所有权利）
