Infant attention and visual preferences: converging evidence from behavior, event-related potentials, and cortical source localization.
Infant attention and visual preferences: converging evidence from behavior, event-related potentials, and cortical source localization.
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DOI：
10.1037/a0019670
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发表时间：
2010-07
影响因子：
4
通讯作者：
Richards, John E.
中科院分区：
文献类型：
--
作者：
Reynolds, Greg D.;Courage, Mary L.;Richards, John E.
关键词：
在这项研究中，我们有三个主要目标。第一个目标是建立婴儿注意力和识别记忆的行为和事件相关电位（ERP）测量之间的联系。为了评估整个ERP测试过程中婴儿视觉偏好的分布，我们设计了一个新的实验程序，该程序在修改后的oddball ERP程序中嵌入了行为测量（配对比较试验）。第二个目标是在配对比较试验中测量婴儿的ERP。独立成分分析（伊卡）被用来识别和删除眼动成分的脑电图数据，从而允许在配对比较试验的ERP组件的分析。第三个目标是定位婴儿视觉偏好的皮质来源。对与实验事件相关的伊卡分量进行了等效电流偶极子分析。在配对比较试验中表现出新奇偏好的婴儿比没有表现出新奇偏好的婴儿在任务中表现出更大幅度的负中央ERP成分。视觉偏好也与注意和刺激类型相互作用。婴儿视觉偏好的皮质来源定位于下、上级前额叶皮质和前扣带皮质。
In this study, we had 3 major goals. The 1st goal was to establish a link between behavioral and event-related potential (ERP) measures of infant attention and recognition memory. To assess the distribution of infant visual preferences throughout ERP testing, we designed a new experimental procedure that embeds a behavioral measure (paired comparison trials) in the modified-oddball ERP procedure. The 2nd goal was to measure infant ERPs during the paired comparison trials. Independent component analysis (ICA) was used to identify and to remove eye-movement components from the electroencephalographic data, thus allowing for the analysis of ERP components during paired comparison trials. The 3rd goal was to localize the cortical sources of infant visual preferences. Equivalent current dipole analysis was performed on the ICA components related to experimental events. Infants who demonstrated novelty preferences in paired comparison trials demonstrated greater amplitude Negative central ERP components across tasks than infants who did not demonstrate novelty preferences. Visual preference also interacted with attention and stimulus type. The cortical sources of infant visual preferences were localized to inferior and superior prefrontal cortex and to the anterior cingulate cortex.
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