重新审视视觉错觉对左右双手抓握的影响
Tzvi Ganel1, Melvyn A Goodale2
1Psychology Department, Ben-Gurion University of the Negev, Beer-Sheva, 8410500, Israel.
Neuropsychologia
|January 27, 2024
概括
像庞佐幻觉这样的视觉错觉显示了感知和行动之间的差异. 左撇子的主导手不受幻觉的影响,这表明视觉运动控制不同.
科学领域:
- 认知心理学 认知心理学
- 神经科学是一个神经科学.
- 人类运动控制器
背景情况:
- 视觉错觉表明感知体验和运动行为之间的分离.
- 之前对像庞佐幻觉这样的幻觉的研究主要涉及右撇子和右手的人.
研究的目的:
- 为了研究左撇子和右撇子个体的感知-动作分离,使用庞佐的幻觉.
- 探索左撇子和右撇子之间视觉运动控制的差异,采用更大的样本大小和动力学测量.
主要方法:
- 一个经过修改的Ponzo幻觉任务被给予一个大样本的右撇子和左撇子参与者.
- 在抓住物体时收集了抓孔和动力学数据,以评估感知和动作.
- 双手之间的性能和双手群之间的性能比较.
主要成果:
- 右撇子在两只手中都表现出感知-动作分离.
- 左撇子只在右手中表现出这种分离;他们的左手对幻觉敏感.
- 左撇子表现出更慢,更可变的动作和两个手中的更大的安全边缘.
结论:
- 左撇子的视觉运动控制不同,其主导的左手对视觉错觉有更大的敏感性.
- 抓住左撇子可能涉及更多的认知监督,影响他们与视觉背景的互动.
- 研究结果突出了感知和行动之间的相互作用中的手性依赖差异.
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