The organization of visually-guided actions

我的研究项目调查了左脑和右脑在视觉引导动作产生过程中的作用。了解每个大脑半球如何整合视觉信息并将其转换为目标导向的行动，是理解人类大脑组织和功能原理的基础。在十项行为研究中，右撇子和左撇子的右手和左手将被评估视觉/和视觉运动任务。这些研究的动机是最近的发现表明，抓取的视觉运动转换似乎是每个大脑半球独一无二的。这些研究被嵌入三个主要的研究项目，旨在回答以下问题：(1)在处理与视觉换行动系统相关的视觉信息时，左脑在多大程度上和在什么条件下具有优势？(2)不同类型的握手和伸展到抓取动作的不同成分是否存在手/大脑半球的差异？(3)两个视觉系统之间的交互作用在两个半球是否不同？通过了解每个大脑半球如何整合视觉和运动信息，这项研究有可能：1)解释左半球或右半球受损后出现的运动障碍；2)为这些患者量身定做特定的治疗方法；3)洞察惯用手的起源。

My research program investigates the roles of the right and the left hemispheres in the production of visually-guided actions. Understanding how each cerebral hemisphere integrates visual information and transforms it into goal-directed actions is fundamental to understanding the principles of human cerebral organization and function. Ten behavioural studies are proposed in which the right and left hands of right- and left-handed individuals will be assessed for visual/and visuomotor tasks. These studies are motivated by recent discoveries showing that visuomotor transformations for grasping appear to be unique to each cerebral hemisphere. The proposed studies are embedded within three major research projects aimed at answering the following questions: (1) To what extent and under what conditions are there left hemisphere advantages in processing visual information relevant to the vision-for-action system? (2) Do hand/hemispheric differences exist for different kinds of grasps and different components of the reach-to-grasp actions? (3) Are the interactions between the two visual systems different for the two hemispheres? By understanding how each cerebral hemisphere integrates visual and motor information, this research has the potential to: 1) explain motor deficits that appear after damage to the left or right hemispheres, 2) develop specific therapies tailored to those patients, and 3) provide insight into the origins of handedness.