双耳听力和半球间整合术后:一个系统的审查
1Section for Cognitive and Clinical Neuroscience, Department of Psychology, University of Oslo, Oslo, Norway.
Brain research
|April 27, 2024
概括
分裂大脑患者在二声听力中表现出右耳优势的改变. 律刺激和右半球反应条件显著影响左耳回忆,挑战传统模型.
科学领域:
- 神经科学是一个神经科学.
- 认知心理学 认知心理学
- 语音处理 语音处理
背景情况:
- 在听觉-言语语听力中,右耳优势 (REA) 传统上归因于左半球的语音优势.
- 分裂大脑研究最初表明,体完整性对于左耳刺激回忆至关重要.
- 切术患者的矛盾发现需要对REA模型进行重新评估.
研究的目的:
- 系统地审查对经过言语式倾听任务的分裂大脑患者的研究.
- 为了确定实验和患者变量,解释左耳回忆后的左耳回忆不一致.
- 完善当前的听觉处理模型和REA.
主要方法:
- 在主要数据库 (PubMed,知识网络,EBSCOhost,Ovid) 进行了系统的文献搜索.
- 包括在内的是使用口头话语倾听范式的经验研究,这些研究是针对完全或部分体切割的患者进行的.
- 分析了来自32个出版物的数据,根据手术程度,刺激和响应格式等变量对左耳抑制/灭绝和右耳增强进行了比较.
主要成果:
- 与非的刺激相比,左耳抑制 (OR=7.47) 和右耳增强 (OR=21.61) 的发生率增加.
- 允许右半球反应 (例如,左手反应) 增加了左耳报告.
- 没有普遍观察到左耳的灭绝,这挑战了早期的假设.
结论:
- 经典的二言式听力模型需要调整以包括右半球处理.
- 半球之间对注意力的感知竞争在REA中起作用.
- 未来的研究应该纳入这些因素,并利用适当的对照组.
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