MENTAL RETARDATION AND PERCEPTUAL PROCESSING

描述：（改编自申请人的摘要） 一项研究调查了轻度智障成年人的能力， 正确地感知和处理某些类别的刺激， 美德.先知-愿 包括整体立体形式，整体动力学形式， 生物运动和大小/距离相互作用的模式， 三维空间 这些刺激在视觉的早期参与前注意过程 系统，并看到毫不费力地由非弱智的人。 但是现有 研究表明，这种刺激揭示了大量的知觉 轻度弱智者的缺陷的条件下，消除， 影响因素、周边视觉异常和 理解力 这是一个令人惊讶的结果，因为轻度发育迟缓是 通常被认为是智力和认知的产物 缺陷 拟议的调查旨在更准确地说明 这些知觉缺陷的特征。 结果数据应 直接有助于更深入地了解智力迟钝。 更 一般来说，它们涉及认知和 知觉过程

DESCRIPTION: (Adapted From The Applicant's Abstract) This program of research investigates the ability of mildly mentally retarded adults to perceive and process correctly certain classes of stimuli with distinctive attributes. Included are global stereoscopic forms, global kinetic forms, patterns of biological motion and size/distance interactions produced by 3-D space. These stimuli engage preattentive processes early in the visual system and are seen effortlessly by nonretarded persons. However, prior research has demonstrated that such stimuli reveal substantial perceptual deficits in mildly retarded persons under conditions that eliminate, as contributing factors, peripheral visual anomalies and failures of comprehension. This is a surprising outcome because mild retardation is generally regarded to be a product of intellectual and cognitive deficiencies. The proposed inquiry seeks to specify more precisely the characteristics of these perceptual deficits. The resulting data should contribute directly to a deeper understanding of mental retardation. More generally they bear on the issue of the separability of cognitive and perceptual processes.