平衡行为:在自发言语中,连贯性和创造力之间的神经性权衡
Tanvi Patel1, Sarah E MacPherson1, Paul Hoffman1
1Human Cognitive Neuroscience, Department of Psychology, School of Philosophy, Psychology & Language Sciences, University of Edinburgh, UK.
概括
均衡连贯的语言和创造性的表达涉及到一个权衡,有不同的大脑网络支持每个功能. 这项研究探讨了自发言语中的连贯性和创造性的神经机制.
科学领域:
- 认知神经科学 认知神经科学
- 心理语言学 心理语言学
- 语言的神经生物学 语言的神经生物学
背景情况:
- 有效的沟通需要平衡叙事连贯性与创造性内容生成.
- 在自发言语中,这种连贯性-创造性平衡的神经支尚未得到充分理解.
- 涉及话语生成的关键大脑网络包括默认模式网络,多重需求网络和语义控制网络.
研究的目的:
- 研究自发言语中的连贯性和创造性之间的关系.
- 探索默认模式网络,多重需求网络和语义控制网络在话语制作中的相互作用.
- 阐明神经机制平衡连贯性和创造力.
主要方法:
- 对语音样本的行为分析,以响应主题线索.
- 全球连贯性和分歧语义整合 (DSI) 措施的计算.
- 神经成像分析专注于大脑网络激活和功能连接.
主要成果:
- 语音一致性和分歧之间观察到负相关性,表明了权衡.
- 较高的全球连贯性与多重需求网络中的激活率增加相关.
- 更大的分歧语义集成 (DSI) 与默认模式和多重需求网络之间的功能连接性增强有关.
结论:
- 自发语音产生涉及神经网络之间复杂的相互作用,这些神经网络管理着对连贯性和创造性的竞争需求.
- 多重需求网络对于保持叙事连贯性至关重要.
- 创造性语言 (高DSI) 产生于协会 (默认模式网络) 和执行 (多重需求网络) 过程之间的动态交互.
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