PERCEPTUAL MEMORY--BRAIN-INJURY MEMORY DISORDERS

近年来，越来越明显的是， 重复启动不是一个统一的概念。师范学院的调查人员 记忆已经能够证明，知觉组件和 一个概念性组件促成了性能增强现象 当刺激在一项任务中重复时。根据客户的需求， 实验，或给出的指令，这些组件之一 可能比另一个更强调或更依赖于另一个。它是 从几个初步研究中预计，启动的“正常” 赦免更多地依赖于知觉特征，而不是 概念上的。这是否表示激活了Structure 视觉刺激的正常启动所产生的流畅性或表征 仍有待调查。为了探索这一点的参数 现象，设计了本组件中的实验。 第一系列实验试图探索知觉的范围 有助于知觉启动的过程，可能是，也可能不是 在健忘症中完好无损。大小、颜色和方向不同的刺激将 在记忆受损和记忆受损的情况下 控制人口数量。预计健忘症患者将被 在各种测试中通常对这些刺激属性敏感 包括对象决定、对象识别和对象的范式 完成了。使用普通物体和新奇物体作为刺激， 第二个系列的任务被设计用来检查 对赦免的多次审判。这些研究的目的是确定 记忆障碍能否获得新的知觉学习技能 患者通过建立他们正常的知觉启动能力。 从理论上讲，对其知觉结构表征的加法 可以在学习方向不变性和心智的过程中做出 轮换任务。最后一组实验将探索基本的 在需要组织视觉的任务中遗忘语的分析技巧 信息。类似的“操控”技能被认为在口头上受到了损害。 被遗忘的分析，但感知分类技能还没有 被调查过了。这种形式的知觉学习的本质将是 通过使用需要患者强制实施的范例来探索 视觉显示器上某种形式的组织，以便感知其 固有的特征。

In recent years it has become increasingly apparent that the phenomena of repetition priming is not a unitary concept. Investigators of normal memory have been able to demonstrate that both a perceptual component and a conceptual component contribute to the phenomena of enhanced performance when stimuli are repeated during a task. Depending upon the demands of the experiment, or the instructions that are given, one of these components might be emphasized, or depended upon, more than the other. It is expected, from several preliminary studies, that the "normal" priming of amnesics is more dependent upon perceptual characteristics than upon conceptual. Whether this represents an activation of structural representation or the fluency produced by normal priming of visual stimuli remains to be investigated. In order to explore the parameters of this phenomena, the experiments in the present component are designed. The first series of experiments seeks to explore the range of perceptual processes contributing to perceptual priming that may, or may not, be intact in amnesia. Stimuli varying in size, color and orientation will be utilized for their priming capabilities in both a memory impaired and a control population. It is anticipated that amnesic patients will be normally sensitive to these stimulus attributes on a variety of testing paradigms including object decision, object identification, and object completion. Using both common objects and novel objects as stimuli, a second series of tasks is designed to examine perceptual learning across multiple trials for amnesics. The purpose of these studies is to determine whether new perceptual learning skills can be acquired by memory disordered patients by building upon their normal perceptual priming abilities. Theoretically, additions to their perceptual structural representations could be made during the learning of orientation invariance and mental rotation tasks. The final set of experiments will explore the basic parsing skills of amnesics during tasks that require organization of visual information. Similar "manipulative" skills are seen as impaired in verbal analysis by amnesics, but perceptual classification skills have not yet been investigated. The nature of this form of perceptual learning will be explored through the use of paradigms that require the patient to impose some form of organization on a visual display in order to perceive its inherent characteristics.