Prefrontal brain asymmetry: A biological substrate of the behavioral approach and inhibition systems
Prefrontal brain asymmetry: A biological substrate of the behavioral approach and inhibition systems
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DOI：
10.1111/j.1467-9280.1997.tb00413.x
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发表时间：
1997-05-01
影响因子：
8.2
通讯作者：
Davidson, RJ
中科院分区：
文献类型：
--
作者：
Sutton, SK;Davidson, RJ
在两个不同的场合收集了46名大学生的静息前脑电活动，行为方法和抑制系统（BAS和BIS）强度的自我报告措施，以及积极和消极的情绪（PA和NA）的一般水平。前额叶不对称的脑电图（EEG）措施和自我报告措施表现出良好的内部一致性信度和足够的重测稳定性。对所有指数计算了两次评估的综合衡量指标。受试者更大的相对左前额叶激活报告较高水平的BAS强度，而那些更大的相对右前额叶激活报告较高水平的BIS强度。在自我报告的相对BAS-BIS强度测量中，前额叶EEG不对称占方差的25%以上。然而，前额叶脑电图与PA或NA，或PA与NA的相对强度没有显着相关。后不对称与自我报告的措施无关。
Resting anterior brain electrical activity, self-report measures of Behavioral Approach and Inhibition System (BAS and BIS) strength, and general levels of positive and negative affect (PA and NA) were collected from 46 unselected undergraduates on two separate occasions. Electroencephalogram (EEG) measures of prefrontal asymmetry and the self-report measures showed excellent internal consistency reliability and adequate test-retest stability. Aggregate measures across the two assessments were computed for all indices. Subjects with greater relative left prefrontal activation reported higher levels of BAS strength, whereas those with greater relative right prefrontal activation reported higher levels of BIS strength. Prefrontal EEG asymmetry accounted for more than 25% of the variance in the self-report measure of relative BAS-BIS strength. Prefrontal EEG, however, was not significantly correlated with PA or NA, or the relative strength of PA versus NA. Posterior asymmetry was unrelated to the self-report measures.