高密度电皮质学揭示了感觉运动皮质在两个不同的部位的参与,在视听,音频和视觉语音感知过程中具有不同的作用
Anouck Schippers1, Zachary V Freudenburg1, Mariska J Vansteensel1
1University Medical Center Utrecht Brain Center, Department of Neurology and Neurosurgery, Utrecht, the Netherlands.
NeuroImage
|December 12, 2025
概括
感觉运动皮质 (SMC) 参与了语音感知. 听觉和视觉语音信息激活了SMC中的不同区域,揭示了处理不同感官输入的专门角色.
科学领域:
- 神经科学是一个神经科学.
- 语音感知研究研究 语音感知研究
- 感觉运动皮层功能 感觉运动皮层功能
背景情况:
- 神经成像研究表明,感觉运动皮层 (SMC) 中的语音运动系统参与了语音感知.
- 关于视觉和听觉语音信息对SMC参与及其皮质表现的具体贡献的理解有限.
研究的目的:
- 调查基于感知输入模式的SMC内语音组件的表示.
- 区分听觉和视觉信息在语音感知过程中参与SMC的作用.
主要方法:
- 在被动语音感知任务中使用高密度电皮质谱 (ECoG).
- 分析的重点是SMC内部高频带活动的变化.
主要成果:
- 视听,仅视觉和仅听觉的语音感知都导致了SMC中高频带活动的增加.
- 确定了两个不同的SMC区域:用于单模/双模听觉和视觉感知的背部集群,以及专门用于听觉语音感知的腹部集群.
结论:
- 这些发现揭示了在语音感知过程中感觉运动皮质的参与模式.
- 听觉和视觉语音信息似乎在激活不同的SMC区域中扮演着不同的和专门的角色.
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