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首页> 外文学位 >Attention and eye movements in schizophrenic, affective disorder, and normal subjects.
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Attention and eye movements in schizophrenic, affective disorder, and normal subjects.

机译：精神分裂症，情感障碍和正常人的注意力和眼球运动。

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Previous work is reviewed that relates to and lends support to three basic ideas. First, behavioral and physiological work has shed light on those cortical and subcortical areas that are involved in the generation of saccadic eye movements, smooth pursuit eye movements, and spatially directed visual attention. Second, the abnormal behavior of schizophrenic patients in general motor tasks, language tasks, and attention tasks has often been attributed to an attentional deficit; at the same time, abnormal smooth pursuit eye movements in schizophrenic patients cannot be accounted for by an attentional deficit. Third, some research has suggested that schizophrenia may involve a frontal lobe deficit.; A model is proposed that attempts to relate saccadic eye movements and spatially directed visual attention. Based on these ideas, a particular hypothesis is proposed and tested in the present study. Specifically, schizophrenic patients who have abnormal smooth pursuit eye movements may demonstrate behavioral deficits on cortical or voluntary tasks of saccadic eye movements and spatially directed visual attention, and demonstrate behavioral disinhibitions on subcortical or automatic tasks of saccadic eye movements and spatially directed visual attention.; To test such a hypothesis, schizophrenic, bipolar and normal subjects groups were tested on a series of tasks. There were three saccadic eye movement tasks (an anti-saccade, saccade, and gap task), two spatially directed attention tasks (endogenous and exogenous task), and a smooth pursuit tracking task. Results from each of the experiments are discussed. In addition, performance on the smooth pursuit tracking task is compared to performance on each of the tasks to determine the relation between abnormal pursuit eye movements and performance on the various saccadic eye movement and attention tasks.
机译：对以前的工作进行了回顾，该工作与三个基本概念有关并为其提供了支持。首先，行为和生理工作揭示了那些涉及眼跳运动，平稳追逐眼动运动和空间定向视觉注意力的皮质和皮质下区域。其次，精神分裂症患者在一般的运动任务，语言任务和注意任务中的异常行为通常归因于注意缺陷。同时，精神分裂症患者的异常平滑追光眼运动不能由注意力缺陷引起。第三，一些研究表明精神分裂症可能涉及额叶缺损。提出了一个模型，该模型试图将眼跳运动与空间定向的视觉注意力联系起来。基于这些想法，提出了一个特定的假设并在本研究中对其进行了检验。具体而言，患有异常顺滑追随眼球运动的精神分裂症患者可能会表现出对皮质眼或眼视运动和空间定向视觉注意的自愿任务的行为缺陷，并表现出对皮质眼或眼视运动和空间定向视觉注意的自动任务的行为抑制作用;为了检验这种假设，对精神分裂症，双相情感障碍和正常受试者组进行了一系列任务测试。有三个眼跳运动任务（反扫视，扫视和间隙任务），两个在空间上定向的注意力任务（内生和外生任务）和平稳跟踪追踪任务。讨论了每个实验的结果。另外，将平滑追踪跟踪任务的性能与每个任务的性能进行比较，以确定异常追踪眼球运动与各种眼跳运动和注意力任务的性能之间的关系。

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