减弱速度信号对目标定向的眼睛和手部运动的影响
Cristina de la Malla1, Alexander Goettker2,3
1Vision and Control of Action Group, Department of Cognition, Development, and Psychology of Education, Institute of Neurosciences, Universitat de Barcelona, Barcelona, Catalonia, Spain. c.delamalla@ub.edu.
Scientific reports
|August 22, 2023
概括
预测目标运动依赖于结合位置和速度信息. 我们的研究揭示了眼睛 (摇摆) 和手动的独特处理,突出了目标导向行动期间感官集成如何演变.
科学领域:
- 神经科学是一个神经科学.
- 发动机控制器的控制器
- 人类运动科学科学 人类运动科学
背景情况:
- 准确的目标定向运动需要整合目标位置和速度信息.
- 了解运动控制中感官集成的时间动态至关重要.
研究的目的:
- 为了研究大脑如何将位置和速度信息与时间相结合,以实现目标导向的运动.
- 为了确定眼睛 (跳动) 和手动是否以不同的方式利用感官信息.
主要方法:
- 使用二级运动刺激来选择性地损害速度信息.
- 对移动目标的摇摆和手动的准确性和延迟的比较.
- 在动作开始之前操纵移动目标的观看时间.
主要成果:
- 对速度信息受损的目标发动的冲击不准确地降落,反映了先前的目标位置.
- 手的动作仍然准确,这表明更新的感官集成允许更长的处理时间.
- 增加的观看时间提高了跳动的准确性,而短暂的手动显示了纠正曲线.
结论:
- 电机控制涉及到目标位置和速度的独立和不断演变的整合.
- 眼睛和手的动作表现出不同的时间处理特征,用于感官信息.
- 运动的准确性取决于可用于感官处理和集成的时间.
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