Neural Correlates of Individual Differences in Infant Visual Attention and Recognition Memory.
Neural Correlates of Individual Differences in Infant Visual Attention and Recognition Memory.
复制标题
婴儿视觉注意力和识别记忆个体差异的神经相关性。
DOI：
10.1111/j.1532-7078.2010.00060.x
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
Zhang,Dantong
中科院分区：
文献类型：
--
作者：
Reynolds,GregD;Guy,MaggieW;Zhang,Dantong
过去的研究已经确定了婴儿视觉注意力的个体差异的基础上，在最初暴露于刺激的峰值期待持续时间。科隆博和他的同事们发现，表现出短暂视觉注视的婴儿（即，在熟悉过程中的短注视者）比表现出长视觉注视的婴儿更可能在随后的刺激暴露期间表现出识别记忆的证据（即，长眼睛的人）。这项研究利用事件相关电位（ERP）来研究6个月和7.5个月大婴儿视觉注意和识别记忆个体差异相关的可能神经机制。在ERP测试过程中，短视和长视的婴儿会看到熟悉和新奇物体的图像。在颞叶和额叶电极上，迟发慢波（LSW）上存在一种由旁观者类型的刺激相互作用。短的旁观者表现出LSW是显着更大的幅度在响应新的刺激介绍。LSW振幅无显着差异，发现基于刺激类型的长看。这些结果表明，更深的加工和识别记忆的熟悉刺激的矮个子。
Past studies have identified individual differences in infant visual attention based upon peak look duration during initial exposure to a stimulus. Colombo and colleagues found that infants that demonstrate brief visual fixations (i.e., short lookers) during familiarization are more likely to demonstrate evidence of recognition memory during subsequent stimulus exposure than infants that demonstrate long visual fixations (i.e., long lookers). This study utilized event‐related potentials (ERPs) to examine possible neural mechanisms associated with individual differences in visual attention and recognition memory for 6‐ and 7.5‐month‐old infants. Short‐ and long‐looking infants viewed images of familiar and novel objects during ERP testing. There was a stimulus type by looker type interaction at temporal and frontal electrodes on the late slow wave (LSW). Short lookers demonstrated an LSW that was significantly greater in amplitude in response to novel stimulus presentations. No significant differences in LSW amplitude were found based on stimulus type for long lookers. These results indicate deeper processing and recognition memory of the familiar stimulus for short lookers.