Cañigueral Roser, Zhang Xian, Noah J Adam, Tachtsidis Ilias, Hamilton Antonia F de C, Hirsch Joy
Institute of Cognitive Neuroscience, University College London WC1N 3AZ, United Kingdom; Dept. of Clinical, Educational and Health Psychology, University College London WC1H 0AP, United Kingdom.
Dept. of Psychiatry, Yale School of Medicine CT 06511, United States.
Neuroimage. 2021 Feb 1;226:117572. doi: 10.1016/j.neuroimage.2020.117572. Epub 2020 Nov 19.
Pairs of participants mutually communicated (or not) biographical information to each other. By combining simultaneous eye-tracking, face-tracking and functional near-infrared spectroscopy, we examined how this mutual sharing of information modulates social signalling and brain activity. When biographical information was disclosed, participants directed more eye gaze to the face of the partner and presented more facial displays. We also found that spontaneous production and observation of facial displays was associated with activity in the left SMG and right dlPFC/IFG, respectively. Moreover, mutual information-sharing increased activity in bilateral TPJ and left dlPFC, as well as cross-brain synchrony between right TPJ and left dlPFC. This suggests that a complex long-range mechanism is recruited during information-sharing. These multimodal findings support the second-person neuroscience hypothesis, which postulates that communicative interactions activate additional neurocognitive mechanisms to those engaged in non-interactive situations. They further advance our understanding of which neurocognitive mechanisms underlie communicative interactions.
参与者两两之间相互交流（或不交流）个人信息。通过结合同步眼动追踪、面部追踪和功能性近红外光谱技术，我们研究了这种信息的相互分享如何调节社会信号和大脑活动。当披露个人信息时，参与者会将更多目光投向对方的脸，并展现出更多面部表情。我们还发现，自发产生和观察面部表情分别与左颞中回和右背外侧前额叶皮质/额下回的活动有关。此外，相互信息分享增加了双侧颞顶联合区和左背外侧前额叶皮质的活动，以及右颞顶联合区和左背外侧前额叶皮质之间的脑间同步。这表明在信息分享过程中会调用一种复杂的长程机制。这些多模态研究结果支持了第二人称神经科学假说，该假说假定，与非互动情境相比，交流互动会激活额外的神经认知机制。它们进一步推进了我们对交流互动背后的神经认知机制的理解。
