Interference between smooth pursuit and color working memory
Interference between smooth pursuit and color working memory
复制标题
平滑追踪与颜色工作记忆之间的干扰
DOI：
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发表时间：
2017
影响因子：
2.1
通讯作者：
Ling Li
中科院分区：
文献类型：
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作者：
Shulin Yue;Zhenlan Jin;Chenggui Fan;Qian Zhang;Ling Li
空间工作记忆与空间注意密切相关，但非空间工作记忆与空间注意的关系尚不清楚。本研究旨在探讨色彩工作记忆与平稳追踪眼球运动之间的相互作用。应用改良的延迟匹配样本范例（DMS），每个视野中呈现2或4个项目。被试在线索视野中记住颜色的项目，并在保持间隔期间平稳地将眼睛移向或移离所记忆的项目，尽管彩色项目不再可见。WM性能一般随负载增加而降低。更重要的是，当被试朝向线索视野而不是远离线索视野时，WM的表现更好。同时，追求增益随负荷的增加而降低，在远离线索视野的地方追求时，追求增益更高。这些结果表明，空间注意，引导注意到记忆的项目，有利于颜色工作记忆。因此，我们认为彩色WM和平滑追踪眼动之间存在着对注意资源的竞争。
Spatial working memory (WM) and spatial attention are closely related, but the relationship between non-spatial WM and spatial attention still remains unclear. The present study aimed to investigate the interaction between color WM and smooth pursuit eye movements. A modified delayed-match-to-sample paradigm (DMS) was applied with 2 or 4 items presented in each visual field. Subjects memorized the colors of items in the cued visual field and smoothly moved eyes towards or away from memorized items during retention interval despite that the colored items were no longer visible. The WM performance decreased with higher load in general. More importantly, the WM performance was better when subjects pursued towards rather than away from the cued visual field. Meanwhile, the pursuit gain decreased with higher load and demonstrated a higher result when pursuing away from the cued visual field. These results indicated that spatial attention, guiding attention to the memorized items, benefits color WM. Therefore, we propose that a competition for attention resources exists between color WM and smooth pursuit eye movements.