Contribution of the anteromedial temporal lobes to the evaluation of facial emotion
Contribution of the anteromedial temporal lobes to the evaluation of facial emotion
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DOI：
10.1037/0894-4105.14.4.526
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发表时间：
2000-10-01
期刊：
影响因子：
2.4
通讯作者：
Phelps, EA
中科院分区：
文献类型：
--
作者：
Anderson, AK;Spencer, DD;Phelps, EA
杏仁核损伤可能导致评估面部表情的障碍，主要是特定于恐惧。相比之下，右半球皮质病变导致更全面的赤字在面部情绪评价。本研究通过调查12例右侧和11例左侧单侧前内侧颞叶切除术（分别为RTL和LTL）患者和23例正常对照者的杏仁核和邻近皮质对面部情绪评估的贡献，解决了这两个对比结果。RTL，但不是LTL患者显示受损的强度评级，包括但不限于恐惧，最严重的赤字仅限于情感状态的撤回回避的表达。这表明，情感半球的专门化皮质功能可能会延伸到皮质下边缘区。此外，右侧杏仁核和邻近的皮质可能是代表退缩面部表情的神经回路的一部分。
Amygdala damage can result in impairments in evaluating facial expressions largely specific to fear. In contrast, right-hemisphere cortical lesions result in a more global deficit in facial emotion evaluation. This study addressed these 2 contrasting findings by investigating amygdala and adjacent cortical contributions to the evaluation of facial emotion in 12 patients with right and 11 patients with left unilateral anteromedial temporal lobectomy (RTL and LTL, respectively) and 23 normal controls. RTL but not LTL patients revealed impaired intensity ratings that included but were not exclusive to fear, with the most severe deficits confined to expressions related to affective states of withdrawal-avoidance. This suggests that affective hemispheric specializations in cortical function may extend to subcortical limbic regions. In addition, the right amygdala and adjacent cortex may be part of a neural circuit representing facial expressions of withdrawal.