心理学
颞叶
额叶
脑功能偏侧化
颞叶皮质
认知心理学
认知
额叶皮质
神经科学
作者
Greta Tuckute,Alexander M. Paunov,Hope Kean,Hannah Small,Zachary Mineroff,Idan Blank,Evelina Fedorenko
标识
DOI:10.1016/j.neuropsychologia.2022.108184
摘要
Language processing relies on a left-lateralized fronto-temporal brain network. How this network emerges ontogenetically remains debated. We asked whether frontal language areas emerge in the absence of temporal language areas through a 'deep-data' investigation of an individual (EG) born without her left temporal lobe. Using fMRI methods that have been validated to elicit reliable individual-level responses, we find that-as expected for early left-hemisphere damage-EG has a fully functional language network in her right hemisphere (comparable to the LH network in n = 145 controls) and intact linguistic abilities. However, we detect no response to language in EG's left frontal lobe (replicated across two sessions, 3 years apart). Another network-the multiple demand network-is robustly present in frontal lobes bilaterally, suggesting that EG's left frontal cortex can support non-linguistic cognition. The existence of temporal language areas therefore appears to be a prerequisite for the emergence of the frontal language areas.
科研通智能强力驱动
Strongly Powered by AbleSci AI