截获垂直接近的物体:内部重力模型的时间招募和光学信息的贡献
Sergio Delle Monache1,2, Gianluca Paolocci3,2, Francesco Scalici3,2
1Laboratory of Visuomotor Control and Gravitational Physiology, IRCCS Santa Lucia Foundation, Rome, Italy.
Frontiers in physiology
|December 4, 2023
概括
精确的拦截时间依赖于内部重力模型,在视觉运动的450ms后进行. 这种重力优先显著影响预测,而不是连续的光学信息.
科学领域:
- 神经科学是一个神经科学.
- 人类运动控制人体运动控制
- 感知 感知 感知 感知
背景情况:
- 精确的拦截时间结合了视觉处理与先前的经验.
- 在前体皮层的内部重力模型预测了落下的物体接触时间.
- 内部引力模型参与的时间和它对视觉信息的贡献仍然不清楚.
研究的目的:
- 调查内部重力模型在拦截任务中的参与时间.
- 为了确定重力先验和视觉信息对接触时间估计的相对贡献.
- 探索拦截时间控制所涉及的处理阶段.
主要方法:
- 32名参与者在虚拟现实中拦截了自由落下的物体.
- 物体运动在800-1100毫秒之间变化,与重力一致 (1g) 或不一致.
- 贝叶斯回归模型分析了准确性,精度和预测因素的影响 (重力优先,光学信息).
主要成果:
- 对1g运动的拦截精度和精度更高,支持内部化的重力使用.
- 贝叶斯模型表明,在运动开始后大约450毫秒左右,引力先参与.
- 在线光学信息处理只为预测能力提供了微小的改进.
结论:
- 内部化的重力信息对于拦截时间至关重要,在初始视觉处理后进行交互.
- 与连续光学数据相比,重力前置对时间估计产生主导影响.
- 结果表明,用于拦截时间控制的并行处理方案.
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