声象征性伪词形对应的神经基础
Deborah A Barany1, Simon Lacey2, Kaitlyn L Matthews3
1Department of Kinesiology, University of Georgia and Augusta University/University of Georgia Medical Partnership, Athens, GA, 30602, USA.
Neuropsychologia
|August 5, 2023
概括
声音象征,词语声音和意义之间的联系,涉及语言处理和多感官集成. 这项神经成像研究发现,在交叉模式匹配任务期间,听觉和语言区域的大脑活动.
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,圆形与尖) 联系起来.
- 以前的研究经常通过视觉形状-声音关联研究声音象征.
研究的目的:
- 调查声音象征是否涉及语言处理.
- 确定声音象征是否依赖于多感官集成.
- 检查声音象征是否反映了手部动作中的体现语言.
主要方法:
- 在交叉模式匹配任务中使用功能磁共振成像 (fMRI).
- 参与者将听觉伪词 ('mohloh', 'kehteh') 与视觉形状 (圆,尖) 相匹配.
- 分析了行为 (反应时间) 和神经成像数据.
主要成果:
- 与不一致的相比,对一致的视听刺激的反应时间更快.
- 在听觉皮层和左前 fusiform/parahippocampal gyri中增加大脑活动,用于一致的刺激.
- 多素模式分析显示,在布罗卡区域,上边缘和尾旋转中,对一致刺激的分类准确度更高.
结论:
- 这些发现支持了声象征涉及语言处理的假设.
- 有证据表明,声音象征性取决于多感官集成.
- 这项研究表明,声音象征性涉及语言和多感官大脑网络.
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