Neural correlates of intersensory processing in 5-month-old infants.
Neural correlates of intersensory processing in 5-month-old infants.
复制标题
5 个月大婴儿感觉间加工的神经相关性。
DOI：
10.1002/dev.21104
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发表时间：
2014
影响因子：
2.2
通讯作者：
Guy,MaggieW
中科院分区：
文献类型：
--
作者：
Reynolds,GregD;Bahrick,LorraineE;Lickliter,Robert;Guy,MaggieW
在5个月大的婴儿中进行了两个评估事件相关电位的实验，以检查注意力显着性的神经相关性和与冗余（同步）语音，非冗余（异步）语音或无语音配对的视觉事件（女性说话）的处理效率。在实验1中，Nc组件与注意力的显着性是更大的幅度同步视听相比，异步视听和单峰视觉呈现。实验2采用区组设计，考察视觉事件的加工效率。只有婴儿暴露于同步视听语音表现出显着减少与成功的刺激处理和识别记忆从早期到后期块的试验的晚期慢波的振幅。这些发现表明，与5个月大的婴儿相比，提供感觉间冗余的事件与增强的神经反应性相关，表明更大的注意力显著性和更有效的刺激处理。© 2013威利期刊公司.© 2013威利期刊公司。Dev Psychobiol 56：355-372，2014.
Two experiments assessing event‐related potentials in 5‐month‐old infants were conducted to examine neural correlates of attentional salience and efficiency of processing of a visual event (woman speaking) paired with redundant (synchronous) speech, nonredundant (asynchronous) speech, or no speech. In Experiment 1, the Nc component associated with attentional salience was greater in amplitude following synchronous audiovisual as compared with asynchronous audiovisual and unimodal visual presentations. A block design was utilized in Experiment 2 to examine efficiency of processing of a visual event. Only infants exposed to synchronous audiovisual speech demonstrated a significant reduction in amplitude of the late slow wave associated with successful stimulus processing and recognition memory from early to late blocks of trials. These findings indicate that events that provide intersensory redundancy are associated with enhanced neural responsiveness indicative of greater attentional salience and more efficient stimulus processing as compared with the same events when they provide no intersensory redundancy in 5‐month‐old infants. © 2013 Wiley Periodicals, Inc. © 2013Wiley Periodicals, Inc. Dev Psychobiol 56: 355–372, 2014.
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