Ouerchefani Riadh, Ouerchefani Naoufel, Kammoun Brahim, Ben Rejeb Mohamed Riadh, Le Gall Didier
High Institute of Human Sciences, University of Tunis El Manar, Tunisia.
Laboratory of Psychology of Pays de la Loire (EA 4638), University of Angers, France.
J Neuropsychol. 2021 Sep;15(3):533-563. doi: 10.1111/jnp.12241. Epub 2021 Feb 17.
Previous studies have shown inconsistent findings regarding the contribution of the different prefrontal regions in emotion recognition. Moreover, the hemispheric lateralization hypothesis posits that the right hemisphere is dominant for processing all emotions regardless of affective valence, whereas the valence specificity hypothesis posits that the left hemisphere is specialized for processing positive emotions while the right hemisphere is specialized for negative emotions. However, recent findings suggest that the evidence for such lateralization has been less consistent. In this study, we investigated emotion recognition of fear, surprise, happiness, sadness, disgust, and anger in 30 patients with focal prefrontal cortex lesions and 30 control subjects. We also examined the impact of lesion laterality on recognition of the six basic emotions. The results showed that compared to control subjects, the frontal subgroups were impaired in recognition of three negative basic emotions of fear, sadness, and anger - regardless of the lesion laterality. Therefore, our findings did not establish that each hemisphere is specialized for processing specific emotions. Moreover, the voxel-based lesion symptom mapping analysis showed that recognition of fear, sadness, and anger draws on a partially common bilaterally distributed prefrontal network.
以往的研究表明,不同前额叶区域在情绪识别中的作用存在不一致的结果。此外,半球侧化假说认为,无论情感效价如何,右半球在处理所有情绪方面占主导地位,而效价特异性假说则认为,左半球专门处理积极情绪,右半球专门处理消极情绪。然而,最近的研究结果表明,这种侧化的证据并不那么一致。在本研究中,我们调查了30例额叶局灶性皮质损伤患者和30名对照受试者对恐惧、惊讶、快乐、悲伤、厌恶和愤怒的情绪识别。我们还研究了损伤侧别对六种基本情绪识别的影响。结果显示,与对照受试者相比,额叶亚组在识别恐惧、悲伤和愤怒这三种消极基本情绪方面存在障碍——无论损伤侧别如何。因此,我们的研究结果并未证实每个半球专门处理特定情绪。此外,基于体素的损伤症状映射分析表明,对恐惧、悲伤和愤怒的识别依赖于一个部分共同的双侧分布的前额叶网络。