精神分裂症患者的反应性凝视偏侧性

Reactive gaze laterality in schizophrenic patients.

作者信息

Tomer R, Mintz M, Levi A, Myslobodsky M S

出版信息

Biol Psychol. 1979 Sep;9(2):115-27. doi: 10.1016/0301-0511(79)90058-9.

Abstract

Reflective lateral eye movements (LEMs) in response to questions of different categories are indicative of differential hemispheric reactivity. These LEMs were studied in schizophrenic patients and normal subjects, in response to 24 questions (12 visual-emotional and 12 verbal-neutral). Two categories of saccades were observed: short-latency LEMs (S-LEMs) and long-latency LEMs (L-LEMs). S-LEMs are believed to be associated with orienting response mechanism. L-LEMs are considered to be related to decision-making or formulating hemispheric-activity-dependent response strategy. In the present study, a general trend of leftward LEMs was found among normals regardless of the question's category, whereas schizophrenics tended to show predominantly rightward LEMs. This suggests that individual cognitive style, rather than task variables, affects LEM direction. The two types of LEM's and their different involvement in hemispheric activity are discussed.

摘要

对不同类别的问题做出的反射性眼球侧向运动（LEMs）表明了半球反应的差异。在精神分裂症患者和正常受试者中研究了这些眼球侧向运动，他们对24个问题（12个视觉情感问题和12个言语中性问题）做出反应。观察到两类扫视：短潜伏期眼球侧向运动（S-LEMs）和长潜伏期眼球侧向运动（L-LEMs）。S-LEMs被认为与定向反应机制有关。L-LEMs被认为与决策或制定依赖半球活动的反应策略有关。在本研究中，无论问题类别如何，正常受试者中都发现了向左眼球侧向运动的总体趋势，而精神分裂症患者则倾向于主要表现为向右眼球侧向运动。这表明个体认知风格而非任务变量会影响眼球侧向运动的方向。文中讨论了两种类型的眼球侧向运动及其在半球活动中的不同参与情况。