Activation of auditory cortex during silent lipreading
Activation of auditory cortex during silent lipreading
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DOI：
10.1126/science.276.5312.593
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发表时间：
1997-04-25
期刊：
影响因子：
56.9
通讯作者：
David, AS
中科院分区：
文献类型：
--
作者：
Calvert, GA;Bullmore, ET;David, AS
在面对面的谈话中观察说话者的嘴唇（唇读）可以显著提高言语感知，特别是在嘈杂的环境中。功能性磁共振成像发现，这些语言视觉线索足以激活听觉皮层在正常听力个体的听觉语音的情况下。两个进一步的实验表明，当一个人看到非语言的面部运动时，这些听觉皮层区域并没有被激活，但似乎是被无声的无意义的语音运动（伪语音）激活的。这支持了心理语言学的证据，看到的语音影响的感知听到的语音在前词汇阶段。
Watching a speaker's lips during face-to-face conversation (lipreading) markedly improves speech perception, particularly in noisy conditions. With functional magnetic resonance imaging it was found that these linguistic visual cues are sufficient to activate auditory cortex in normal hearing individuals in the absence of auditory speech sounds. Two further experiments suggest that these auditory cortical areas are not engaged when an individual is viewing nonlinguistic facial movements but appear to be activated by silent meaningless speechlike movements (pseudospeech). This supports psycholinguistic evidence that seen speech influences the perception of heard speech at a prelexical stage.