Nagai Chiyoko
Teikyo Heisei University, Faculty of Medical Science for Health, Department of Speech-Language Pathology & Audiology.
Brain Nerve. 2019 Sep;71(9):993-1002. doi: 10.11477/mf.1416201392.
Joint attention behaviors involve sharing attention with others to an object or event by means of eye-gazing or pointing, which form the common basis for communication. There are two types of these behaviors: responding to joint attention (RJA) and initiating joint attention (IJA). RJA is the ability to follow the gaze of others, suggesting reception of a social signal from others; IJA is the ability to voluntarily direct the attention of others, to share the experience of an object or event, suggesting transmission of a social signal to others. Infants experience these roles (as signal receiver and signal transmitter) throughout the first year of life and learn social cognitive skills. Recent neuroimaging studies indicate that joint attention is supported by widely distributed neural systems with nodes in the dorsomedial prefrontal cortex, the orbitofrontal cortex and insula, the anterior and posterior cingulate cortex, the superior temporal cortex, the precuneus and parietal cortex, and the amygdala and striatum.
联合注意行为包括通过目光注视或指物与他人共同关注某一物体或事件，这些行为构成了交流的共同基础。这些行为有两种类型：回应联合注意（RJA）和发起联合注意（IJA）。RJA是跟随他人目光的能力，表明接收来自他人的社交信号；IJA是自愿引导他人注意力、分享对某一物体或事件的体验的能力，表明向他人传递社交信号。婴儿在生命的第一年中会经历这些角色（作为信号接收者和信号传递者）并学习社会认知技能。最近的神经影像学研究表明，联合注意由广泛分布的神经系统支持，这些系统的节点位于背内侧前额叶皮层、眶额皮层和脑岛、前扣带回和后扣带回皮层、颞上叶皮层、楔前叶和顶叶皮层，以及杏仁核和纹状体。
