恋爱中的人类在唱歌:语言产生中的社会中介大脑活动

IF 3.6 Q1 LINGUISTICS Neurobiology of Language Pub Date : 2023-08-01 DOI:10.1162/nol_a_00112
Clara D. Martin, I. Quiñones, M. Carreiras
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引用次数: 0

摘要

摘要本研究通过功能性磁共振成像(fMRI)研究了人类语言产生回路是否以及如何受到社会因素的调节。参与者一边在核磁共振扫描仪上背诵一首诗,一边观看爱人、陌生人或房子的照片,以模拟不同的社会背景。结果表明,正如预期的那样,语音产生电路在背诵过程中被招募。然而,我们第一次证明了这个回路与潜在的社会认知网络紧密相连。与非社会相关情境(房屋)相比,社会相关情境(熟悉的和不熟悉的人)引发了广泛的双侧神经回路的激活,包括杏仁核、前扣带和眶额皮质等区域。我们还展示了由情感和非情感语境的社会相关性差异产生的神经梯度。这项研究为社会介导的言语产生开辟了一条新的研究路线,揭示了在不同的社会背景下执行相同的言语产生任务时,大脑激活的巨大差异。有趣的是,斑胸草雀在面对(潜在的)配偶或独自唱歌时,其类似的鸟类前神经通路也会被不同的激活。因此,这项研究表明,尽管存在重要的系统发育差异,但人类的语言产生与鸣禽一样,是基于一个复杂的神经回路,该神经回路由进化上的原始方面(如收信人的社会相关性)调节。
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Humans in Love Are Singing Birds: Socially-Mediated Brain Activity in Language Production
Abstract This functional magnetic resonance imaging (fMRI) study investigated whether and how the human speech production circuit is mediated by social factors. Participants recited a poem in the MRI scanner while viewing pictures of their lover, unknown persons, or houses to simulate different social contexts. The results showed, as expected, the recruitment of the speech production circuit during recitation. However, for the first time, we demonstrated that this circuit is tightly linked to the network underlying social cognition. The socially relevant contexts (familiar and unfamiliar persons) elicited the recruitment of a widespread bilateral circuit including regions such as the amygdala, anterior cingulate, and orbitofrontal cortex, in contrast to the non-socially relevant context (houses). We also showed a neural gradient generated by the differences in the social relevance of affective and nonaffective contexts. This study opens up a novel line of research into socially mediated speech production, revealing drastic differences in brain activation when performing the same speech production task in different social contexts. Interestingly, the analogous avian anterior neural pathway in the zebra finch is also differentially activated when the bird sings facing a (potential) mate or alone. Thus, this study suggests that despite important phylogenetic differences, speech production in humans is based, as in songbirds, on a complex neural circuitry that is modulated by evolutionarily primordial aspects such as the social relevance of the addressee.
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来源期刊
Neurobiology of Language
Neurobiology of Language Social Sciences-Linguistics and Language
CiteScore
5.90
自引率
6.20%
发文量
32
审稿时长
17 weeks
期刊最新文献
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