Developmental integration of posture and manual control

姿势和手动控制的发展整合

• 批准号: 6886433
• 负责人: JEFFREY M HADDAD
• 金额: $ 2.67万
• 依托单位: UNIVERSITY OF MASSACHUSETTS AMHERST
• 依托单位国家: 美国
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-12-04 至 2006-12-03
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6886433
• 关键词: age difference; behavior test; behavioral /social science research tag; biomechanics; child physical development; clinical research; human subject; infant human (0-1 year); middle childhood (6-11); posture; predoctoral investigator; preschool child (1-5); psychomotor function; university student

DESCRIPTION (provided by applicant): Children are typically described as having a noisy or highly variable motor system. Although random noise in the postural system may be detrimental to the successful completion of other goal directed behaviors, literature in adults has shown that some amount of variability may be functional. Specifically, postural variability can be exploratory, providing information about possibilities for action given current task constraints, and allows the individual to be adaptable in the face of possible perturbations. The role of postural variability and its interaction with manual behaviors at different stages of development is largely unknown. In this project the postural dynamics of children in different age groups will be assessed as manual tasks of varying precision are performed. Additional studies will also be performed where the postural requirements and the visual information provided during the task are manipulated. Results of the proposed research will provide insight into the ability of children of different ages to modulate the dynamics of their postural system as task constraints are manipulated. This ability may be important in normal development, and may help further understand the onset of developmental coordination disorders.

描述（由申请人提供）：通常将儿童描述为具有嘈杂或高度可变的电机系统。尽管姿势系统中的随机噪声可能不利于成功完成其他目标定向行为，但成年人的文献表明，一定程度的可变性可能是功能性的。具体而言，姿势可变性可以是探索性的，提供有关当前任务限制的行动可能性的信息，并允许在可能的扰动时进行适应性。姿势变异性的作用及其与不同发展阶段的手动行为的相互作用在很大程度上未知。在这个项目中，将评估不同年龄段的儿童的姿势动态，因为执行了精确度的手动任务。在操纵任务期间提供的姿势要求和视觉信息的情况下，还将进行其他研究。拟议研究的结果将洞悉不同年龄的儿童在操纵任务限制时调节其姿势系统动态的能力。这种能力在正常发展中可能很重要，并且可能有助于进一步了解发展协调障碍的发作。