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首页> 外文学位 >CEREBRAL PROCESSING OF NONVERBAL AFFECTIVE STIMULI: EFFECT OF A PROCESS VARIABLE ON HEMISPHERIC ASYMMETRY (EEG, CEREBRAL LATERALITY, EDA, EMOTION).
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CEREBRAL PROCESSING OF NONVERBAL AFFECTIVE STIMULI: EFFECT OF A PROCESS VARIABLE ON HEMISPHERIC ASYMMETRY (EEG, CEREBRAL LATERALITY, EDA, EMOTION).

机译：非言语情感刺激的脑处理：一个过程变量对半球不对称性的影响（脑电图，脑横向，EDA，情绪）。

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摘要

Fifty-six right handed subjects (28 males and 28 females) were recruited from undergraduate classes in the Psychology Department. Bilateral frontal lobe electroencephalographic recordings and bilateral electrodermal recordings were taken while subjects heard a series of nonverbal affective stimuli. A prior study (Meyers and Smith, in press) demonstrated that in the absence of a task these stimuli elicited bilaterally symmetrical activity as measured by overall alpha activity. The purpose of the present study was to explore the effect of manipulating a process variable on the patterns of cerebral activity. This was accomplished by the use of two different task conditions: affective and cognitive. The principal finding of the study was that the patterns of hemispheric asymmetry varied as a function of various interactions of affect, condition and gender. In all cases where hemispheric asymmetry was observed, there was greater relative left hemisphere activity than right hemisphere activity. This pattern was evident in the response of the males to the positive affect in the cognitive condition and the response of the females to the positive affect in both the affective and cognitive conditions. Males also demonstrated a small, but significant pattern of hemispheric asymmetry in response to the negative affect in the affective condition. Females demonstrated hemispheric asymmetry in response to the negative affect in the cognitive condition, whereas males did not. There was no evidence of hemispheric asymmetry in the response of males to the positive affect in the affective condition or the negative affect in the cognitive condition. In addition, the females demonstrated no hemispheric asymmetry in response to the negative affect in the affective condition.;These results indicate that future studies of cerebral laterality should employ clearly articulated and well-defined process variables in order to clarify the source of asymmetric patterns of activation.;The major electrodermal finding was that there was greater electrodermal activity on the left side during the cognitive condition and greater activity on the right side during the affective condition. The significance of this result with respect to the validity of electrodermal activity as a measure of hemispheric asymmetry remains to be elucidated.
机译：从心理学系的本科班中招募了56名右撇子受试者（28名男性和28名女性）。在受试者听到一系列非言语性情感刺激的同时，进行了双侧额叶脑电图和双侧皮肤电图记录。先前的研究（Meyers和Smith，已出版）表明，在没有任务的情况下，这些刺激引起了以总α活性来衡量的双边对称活性。本研究的目的是探讨操纵过程变量对脑活动模式的影响。这是通过使用两种不同的任务条件来实现的：情感和认知。该研究的主要发现是，半球不对称的模式随情感，条件和性别的各种相互作用而变化。在观察到半球不对称的所有情况下，相对的左半球活动要比右半球活动大。男性在认知条件下对积极情感的反应和女性在情感和认知条件下对积极情感的响应都体现了这种模式。男性还表现出较小但重要的半球不对称模式，以应对情感条件下的负面影响。女性对认知状况的负面影响表现出半球不对称性，而男性则没有。没有证据表明男性对情感条件下的积极影响或认知条件下的消极反应有半球不对称性。此外，这些雌性动物没有表现出对情感条件下的负面影响做出反应的半球不对称性。这些结果表明，未来的大脑侧性研究应采用清晰表达和定义明确的过程变量，以阐明非对称性模式的来源。主要的皮肤电活动发现是在认知状态下左侧的皮肤电活动较大，而在情感状态下右侧的皮肤电活动较大。关于作为皮肤半球不对称性度量的皮肤电活动的有效性，该结果的重要性尚待阐明。

著录项

  • 作者

    MEYERS, MARILYN BAND.;

  • 作者单位

    University of Maryland, College Park.;

  • 授予单位 University of Maryland, College Park.;
  • 学科 Psychology Clinical.
  • 学位 Ph.D.
  • 年度 1986
  • 页码 117 p.
  • 总页数 117
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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