说话任务要求对自语的成年人的感觉运动振荡的影响:对言语运动控制的影响
Edward C Brown1, Andrew Bowers2, M Blake Rafferty3
1University of Tennessee Health Science Center, The Department of Audiology and Speech Pathology, Knoxville, TN, USA.
概括
吃的成年人 (AWS) 在说话时在左半球表现出降低的感觉运动β和α功率. 这种能力虽然不是语音稳定性的直接标记,但可以提供对运动控制和潜在神经刺激目标的见解.
科学领域:
- 神经科学是一个神经科学.
- 语音语言病理学 语言病理学
背景情况:
- 以前关于口吃的研究已经产生了关于感觉运动节奏功率的不一致的发现.
- 了解口吃时语音运动控制的神经基础至关重要.
研究的目的:
- 为了研究成年人口吃者 (AWS) 和流利的对照者之间的传感运动β (β) 和alpha (α) 语音相关功率的差异.
- 探索这些功率指标与口吃严重程度之间的关系.
主要方法:
- 脑电图 (EEG) 用于记录AWS和匹配的对照中的大脑活动.
- 在安静和信息掩盖条件下,在语音规划和执行期间测量了感觉运动β和α功率.
主要成果:
- 与对照组相比,AWS在两种说话条件下表现出左半球β和α功率的减少.
- 在AWS中,与安静相比,在信息掩盖期间观察到左α功率减少.
- 在AWS中,β和α功率紧密结合在一起,它们的分离预测了口吃的严重程度.
结论:
- 由于任务的自动性,感官运动 β 和 α 功率不是语言运动稳定的可靠标记.
- β和α节奏之间的关系需要进一步研究以获得运动控制的洞察力.
- 这些发现可能会为口流的神经刺激协议提供信息.
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