文字生成和工作记忆中的序列顺序系统:一个案例序列方法
Yingxue Tian1, Marja-Liisa Mailend2, Erica L Middleton1
1Jefferson Moss Rehabilitation Research Institute, PA, USA.
概括
这项研究揭示了语言序列的独特工作记忆 (WM) 系统. 序列顺序WM容量支持重复,而项目WM容量则有助于命名,建议单独的口语生产机制.
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
- 语音制作 语音制作
背景情况:
- 序列顺序对于语言行为至关重要,包括工作记忆 (WM) 和语音生成.
- 独特的认知过程在口头任务中管理项目身份与序列顺序.
- 在WM和口头生产序列之间的关系仍然不完全理解.
研究的目的:
- 调查共享系统是否支持认知功能 (WM,生产) 和任务 (重复,命名) 之间的口语项目的串行顺序.
- 检查工作内存容量 (项目和序列顺序) 与序列顺序损害在单词重复和命名任务中的严重程度之间的联系.
主要方法:
- 招募了30名患有慢性中风诱导失语症的参与者.
- 对项目和序列顺序的评估工作记忆,使用文字的即时序列回忆.
- 在单词重复和命名任务中测量语音序列精度,量化失序语音的损伤.
主要成果:
- 序列顺序工作内存容量,而不是项目容量,与序列顺序在重复中受损相关.
- 项目工作内存容量,而不是串行订单容量,与命名中的串行订单损害相关.
- 发现表明WM和重复的共享序列顺序系统,但命名的WM机制是不同的.
结论:
- 重复和命名涉及不同的测序过程,每一个都与不同的工作记忆机制联系在一起.
- 工作记忆在支持口头生产任务方面发挥着差异性作用.
- 结果为文字生产和WM-生产关系的模型提供了信息.
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