Neural correlates of levels of emotional awareness: Evidence of an interaction between emotion and attention in the anterior cingulate cortex
Neural correlates of levels of emotional awareness: Evidence of an interaction between emotion and attention in the anterior cingulate cortex
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DOI：
10.1162/089892998562924
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发表时间：
1998-07-01
影响因子：
3.2
通讯作者：
Schwartz, GE
中科院分区：
文献类型：
--
作者：
Lane, RD;Reiman, EM;Schwartz, GE
最近的功能成像研究已经开始识别健康志愿者情绪的神经相关性。然而，迄今为止的研究尚未对情绪唤醒期间与情绪感知、体验或表达相关的大脑区域进行差异化研究。为了探索情绪体验的神经相关性，我们使用正电子发射断层扫描 (PET) 和 O-15 水来测量 12 名健康女性在电影和回忆诱发情绪期间的脑血流量 (CBF)，并将情绪引起的 CBF 变化与受试者情绪意识量表 (LEAS) 水平的分数相关联，LEAS 是衡量以差异化和复杂的方式体验情绪的能力的个体差异的指标。联合分析显示，在前扣带皮层 (ACC) 的布罗德曼 24 区，电影拍摄期间 LEAS 和 CBF 以及回忆诱发的情绪之间的相关性显着重叠 (z = 3.74，p < 0.001)。这一发现表明，准确检测内感受或外感受情绪信号的能力的个体差异可能至少部分取决于 ACC 参与体验处理和对情绪线索的反应程度的函数。从某种程度上来说，这一发现与 ACC 涉及注意力和反应选择的功能是一致的，这表明有意识情绪体验的这种神经关联并不只限于情绪。
Recent functional imaging studies have begun to identify the neural correlates of emotion in healthy volunteers. However, studies to date have not differentially addressed the brain areas associated with the perception, experience, or expression of emotion during emotional arousal. To explore the neural correlates of emotional experience, we used positron emission tomography (PET) and O-15-water to measure cerebral blood flow (CBF) in 12 healthy women during film and recall-induced emotion and correlated CBF changes attributable to emotion with subjects' scores on the Levels of Emotional Awareness Scale (LEAS), a measure of individual differences in the capacity to experience emotion in a differentiated and complex way. A conjunction analysis revealed that the correlations between LEAS and CBF during film and recall-induced emotion overlapped significantly (z = 3.74, p < 0.001) in Brodmann's area 24 of the anterior cingulate cortex (ACC). This finding suggests that individual differences in the ability to accurately detect emotional signals interoceptively or exteroceptively may at least in part be a function of the degree to which the ACC participates in the experiential processing and response to emotion cues. To the extent that this finding is consistent with the functions of the ACC involving attention and response selection, it suggests that this neural correlate of conscious emotional experience is not exclusive to emotion.