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Regression analysis utilizing subjective evaluation of emotional experience in PET studies on emotions.

机译：在PET情绪研究中利用情绪体验的主观评估进行回归分析。

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摘要

A methodological study on subject-specific regression analysis (SSRA) exploring the correlation between the neural response and the subjective evaluation of emotional experience in eleven healthy females is presented. The target emotions, i.e., amusement and sadness, were induced using validated film clips, regional cerebral blood flow (rCBF) was measured using positron emission tomography (PET), and the subjective intensity of the emotional experience during the PET scanning was measured using a category ratio (CR-10) scale. Reliability analysis of the rating data indicated that the subjects rated the intensity of their emotional experience fairly consistently on the CR-10 scale (Cronbach alphas 0.70-0.97). A two-phase random-effects analysis was performed to ensure the generalizability and inter-study comparability of the SSRA results. Random-effects SSRAs using Statistical non-Parametric Mapping 99 (SnPM99) showed that rCBF correlated with the self-rated intensity of the emotional experience mainly in the brain regions that were identified in the random-effects subtraction analyses using the same imaging data. Our results give preliminary evidence of a linear association between the neural responses related to amusement and sadness and the self-evaluated intensity of the emotional experience in several regions involved in the emotional response. SSRA utilizing subjective evaluation of emotional experience turned out a feasible and promising method of analysis. It allows versatile exploration of the neurobiology of emotions and the neural correlates of actual and individual emotional experience. Thus, SSRA might be able to catch the idiosyncratic aspects of the emotional response better than traditional subtraction analysis.
机译：提出了一种针对特定主题的回归分析（SSRA）的方法学研究，探讨了十一名健康女性的神经反应与主观评估情绪体验之间的相关性。使用经过验证的胶片夹诱发目标情绪，即娱乐和悲伤，使用正电子发射断层扫描（PET）测量局部脑血流量（rCBF），并使用A来测量PET扫描过程中的主观情绪体验强度类别比例（CR-10）规模。评估数据的可靠性分析表明，受试者在CR-10量表上相当一致地评估了他们的情感体验强度（Cronbach alphas 0.70-0.97）。进行了两阶段随机效应分析，以确保SSRA结果的普遍性和研究间的可比性。使用统计非参数映射99（SnPM99）的随机效应SSRA显示，rCBF与情绪体验的自评强度相关，主要是在使用相同成像数据进行的随机效应减法分析中确定的大脑区域。我们的结果提供了与娱乐和悲伤有关的神经反应与涉及情绪反应的多个区域中自我评估的情绪体验强度之间的线性关联的初步证据。 SSRA利用对情感体验的主观评估，发现了一种可行且有希望的分析方法。它允许对情感的神经生物学以及实际和个人情感体验的神经相关性进行多方面的探索。因此，SSRA可能比传统的减法分析更好地捕捉情绪反应的特质方面。

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