Proactive or reactive? Neural oscillatory insight into the leader-follower dynamics of early infant-caregiver interaction.
Proactive or reactive? Neural oscillatory insight into the leader-follower dynamics of early infant-caregiver interaction.
复制标题
主动还是反应？神经振荡的洞察力对早期婴儿护理人员相互作用的领导者追随者动态。
DOI：
10.1073/pnas.2122481120
复制
发表时间：
2023-04-11
影响因子：
11.1
通讯作者：
中科院分区：
文献类型：
--
作者：
婴儿参与联合注意的能力预测语言发展和社会认知功能。尽管它很重要，但我们对联合注意力是如何建立的知之甚少。我们使用多层次的技术来调查婴儿是否故意创造自然互动过程中的联合注意。我们的结果表明他们没有：婴儿在引起伴侣的注意之前没有表现出社交信号的证据，而且他们的内源性振荡活动没有增加。然而，婴儿对他们的注视很敏感：当照顾者加入他们的注意力时，婴儿表现出与预期处理相关的神经活动。研究结果表明，婴儿并不主动控制成年人的注意力，但当成年人对他们的启动做出反应时，婴儿会感知。因此，行为偶然性可能是婴儿学习有意交流的关键机制。我们知道，婴儿在第一年结束时与他人协调注意力的能力是语言习得和社会认知的基础。然而，我们对在共同互动中驱动婴儿注意力的神经和认知机制知之甚少：婴儿在创造共同注意力的过程中是否扮演了积极主动的角色？记录脑电图（EEG）从12个月大的婴儿，而他们从事桌面游戏与他们的照顾者，我们检查了沟通行为和神经活动之前和之后的婴儿与成人主导的联合注意。婴儿主导的联合注意事件似乎主要是反应性的：它们与增加的θ功率无关，θ功率是内源性驱动注意力的神经标记，婴儿在开始之前没有增加他们的明示信号。然而，婴儿对他们的启蒙是否得到回应很敏感。当看护者加入他们的注意力集中时，婴儿表现出增加的α抑制，这是一种与预测处理相关的神经活动模式。我们的研究结果表明，在10至12个月，婴儿还没有经常主动创造联合注意事件。然而，他们确实预测了行为的偶然性，这是有意沟通出现的潜在基础机制。
Infants’ ability to engage in joint attention predicts language development and socio-cognitive functioning. Despite its importance, we understand little about how joint attention is established. We use multi-level techniques to investigate whether infants deliberately create joint attention during naturalistic interactions. Our results suggest they do not: infants showed no evidence of social signaling before leading their partner’s attention, and their endogenous oscillatory activity did not increase. Infants were, however, sensitive to their gaze being followed: when caregivers joined their attention, infants showed neural activity associated with anticipatory processing. Findings suggest infants do not actively control adults’ attention—but perceive when adults respond to their initiations. Behavioral contingency may therefore be a key mechanism through which infants learn to communicate intentionally. We know that infants’ ability to coordinate attention with others toward the end of the first year is fundamental to language acquisition and social cognition. Yet, we understand little about the neural and cognitive mechanisms driving infant attention in shared interaction: do infants play a proactive role in creating episodes of joint attention? Recording electroencephalography (EEG) from 12-mo-old infants while they engaged in table-top play with their caregiver, we examined the communicative behaviors and neural activity preceding and following infant- vs. adult-led joint attention. Infant-led episodes of joint attention appeared largely reactive: they were not associated with increased theta power, a neural marker of endogenously driven attention, and infants did not increase their ostensive signals before the initiation. Infants were, however, sensitive to whether their initiations were responded to. When caregivers joined their attentional focus, infants showed increased alpha suppression, a pattern of neural activity associated with predictive processing. Our results suggest that at 10 to 12 mo, infants are not routinely proactive in creating joint attention episodes yet. They do, however, anticipate behavioral contingency, a potentially foundational mechanism for the emergence of intentional communication.
登录
查看更多内容
影响因子：
4.7
作者：
Jessen S;Obleser J;Tune S
通讯作者：
Tune S
影响因子：
8.2
作者：
Iverson, JM;Goldin-Meadow, S
通讯作者：
Goldin-Meadow, S
影响因子：
2.6
作者：
Custode, Stephanie A.;Tamis-LeMonda, Catherine
通讯作者：
Tamis-LeMonda, Catherine
影响因子：
4.6
作者：
Kalashnikova M;Peter V;Di Liberto GM;Lalor EC;Burnham D
通讯作者：
Burnham D
影响因子：
3.7
作者：
Debnath, Ranjan;Buzzell, George A.;Fox, Nathan A.
通讯作者：
Fox, Nathan A.