INFANT INTERMANUAL COORDINATION AND HAPTIC PERCEPTION

婴儿手动协调和触觉感知

• 批准号: 3321903
• 负责人: GEORGE F MICHEL
• 金额: $ 5.85万
• 依托单位: DE PAUL UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-03-01 至 1990-02-28
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/3321903
• 关键词: behavioral medicine; body movement; child psychology; corpus callosums; developmental neurobiology; discrimination learning; gender difference; hand; handedness; human subject; infant human (0-1 year); innervation; interhemispheric transfer; learning; neural information processing; neuroanatomy; neuropsychology; perception; sensorimotor system

Two experiments are proposed which describe intermanual coordination and intermanual transfer of haptic experience during the period of infancy when the corpus callosum first begins to show electrophysiological evidence of function. Each of the proposed procedures have proven to be effective indicators of callosal functioning in animal studies and in studies of callosectomized patients but neither has been employed previously for investigating infant sensorimotor ability. Experiment 1 provides a description of the spatial and temporal pattern of organization involved in intermanual coordination of the movements of the two hands during the bimanual reaching of 7-15 month old infants. Examination of the effects of perturbing the actions of one hand (by unexpected and expected changes in load and trajectory) on the pattern of coordination, means that a procedure commonly used in study of the organization of motor control in adults will be applied to the study of infant motor control. Using equivalent procedures will help forge links between theory of motor control in infants and adults. Intermanual coordination is an important aspect of most theories of infant development. However, research has typically focused on describing the occurrence of this pattern rather than on the specific aspects of how it is organized. Experiment 2 uses a simple learning procedure (employing a novel but spontaneous behavioral response) to examine the ability of infants to discriminate the properties of objects by haptic perception. The experiment will identify the effects of stimulus properties (form, texture, temperature) and hand (right or left) used to perceive the stimuli on the infant's ability to learn a haptic discrimination and to transfer this learning to the use of the other (untrained) hand. This procedure opens the possibility of systematic examination of the information processing aspects of haptic perception and allows for direct psychological examination of the processes of interhemispheric communication. Both experiments approach the investigation of infant sensorimotor ability from a neuropsychological perspective. In each, the subject variables of sex, age, and handedness status are used as prediction variables because they have been known to contribute to important individual differences in neuropsychological investigations of hemispheric specialization of function and interhemispheric interaction.

提出了两个实验来描述人手间的协调和 婴儿期触觉体验的手动传递 胼胝体首先开始显示出电生理学证据 功能。 所提议的每项程序均已被证明是有效的 动物研究和研究中胼胝体功能的指标 胼胝体切除术的患者，但之前都没有被雇用过 研究婴儿的感觉运动能力。 实验1提供了 所涉及的组织的空间和时间模式的描述 动作过程中两只手动作的手动协调 7-15 个月大婴儿的双手伸手。 检验效果 扰乱一只手的行为（通过意外和预期的变化 负载和轨迹）在协调模式上，意味着一个过程 常用于成人运动控制组织的研究 应用于婴儿运动控制的研究。 使用等价物 程序将有助于建立婴儿运动控制理论之间的联系 和成人。 人手间的协调是大多数人的一个重要方面 婴儿发育理论。 然而，研究通常集中于 描述这种模式的发生而不是具体的 其组织方式的各个方面。 实验2使用简单的学习 程序（采用新颖但自发的行为反应） 检查婴儿辨别物体属性的能力 触觉感知。 该实验将确定刺激的效果 属性（形状、质地、温度）和手（右手或左手）用于 感知刺激对婴儿学习触觉能力的影响 歧视并将这种学习转移到使用其他学习 （未经训练的）手。 该程序开启了系统化的可能性 检查触觉感知的信息处理方面和 允许对过程进行直接的心理检查 半球间通讯。 这两个实验都旨在研究婴儿感觉运动能力 从神经心理学的角度来看。在每个中，主题变量 使用性别、年龄和惯用手状态作为预测变量，因为 众所周知，它们会导致重要的个体差异 半球功能特化的神经心理学研究 和半球间相互作用。