
초기 생애 전대상피질 손상은 사회적 접촉 발성의 발달을 저해하며, 이는 하위 뇌 영역인 편도체와 중간뇌 회색질의 구조적 변화와 관련이 있다.


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The social dynamics of vocal behavior has major implications for social development in humans. We asked whether early life damage to the anterior cingulate cortex (ACC), which is closely associated with socioemotional regulation more broadly, impacts the normal development of vocal expression. The common marmoset provides a unique opportunity to study the developmental trajectory of vocal behavior, and to track the consequences of early brain damage on aspects of social vocalizations. We created ACC lesions in neonatal marmosets and compared their pattern of vocalization to that of age-matched controls throughout the first 6 weeks of life. We found that while early life ACC lesions had little influence on the production of vocal calls, developmental changes to the quality of social contact calls and their associated syntactical and acoustic characteristics were compromised. These animals made fewer social contact calls, and when they did, they were short, loud and monotonic. We further determined that damage to ACC in infancy results in a permanent alteration in downstream brain areas known to be involved in social vocalizations, such as the amygdala and periaqueductal gray. Namely, in the adult, these structures exhibited diminished GABA-immunoreactivity relative to control animals, likely reflecting disruption of the normal inhibitory balance following ACC deafferentation. Together, these data indicate that the normal development of social vocal behavior depends on the ACC and its interaction with other areas in the vocal network during early life.

### Competing Interest Statement

The authors have declared no competing interest.

Cingulate cortex shapes early postnatal development of social vocalizations

초기-생애-전대상피질-손상이-사회적-발성의-발달에-미치는-영향


초기 생애 전대상피질 손상이 사회적 발성의 발달에 미치는 영향
