声象征性伪词形对应的神经基础
Deborah A Barany1, Simon Lacey2,3,4, Kaitlyn L Matthews5,6
1Department of Kinesiology, University of Georgia and Augusta University/University of Georgia Medical Partnership, Athens, GA, 30602, USA.
bioRxiv : the preprint server for biology
|July 10, 2023
概括
声音象征,词的声音和意义之间的联系,是由语言和多感官区域的大脑活动支持的. 这项研究发现对一致的视听刺激的反应更快,神经激活更大,证实了它在处理中的作用.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 语言学的语言学.
背景情况:
- 声音象征主义描述了单词声音和意义之间的非任意映射.
- 交叉模式对应关系将听觉刺激 (例如伪词) 与视觉形状 (例如圆形或尖) 联系起来.
- 以前的研究表明,声音象征意义涉及视觉形状和听觉声音匹配.
研究的目的:
- 通过使用fMRI调查声音象征是否涉及语言处理和多感官集成.
- 测试语言,多感官和感官运动网络中交叉模式一致性效应的神经解剖学预测.
- 检查体现在声音象征中的作用.
主要方法:
- 功能性磁共振成像 (fMRI) 用于22名右撇子参与者.
- 参与者执行了一项与视听刺激 (伪词和形状) 进行交叉匹配的任务.
- 记录了反应时间和大脑活动 (单变和多倍素模式分析).
主要成果:
- 对于一致而不是不一致的视听刺激,反应时间更快.
- 在听觉和视觉皮层中观察到对一致刺激的更大激活.
- 在语言 (Broca区域) 和视觉区域中发现对一致刺激的更高分类准确度.
结论:
- 声音象征主义涉及语言处理和多感官集成.
- 这些发现支持了将声音象征与语言网络和多感官处理区域联系起来的假设.
- 这项研究为声音象征提供了神经解剖学证据.
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