The extrastriate body area is involved in reciprocal imitation of hand gestures, vocalizations, and facial expressions: A univariate and multivariate fMRI study
The extrastriate body area is involved in reciprocal imitation of hand gestures, vocalizations, and facial expressions: A univariate and multivariate fMRI study
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DOI：
10.1080/17470919.2021.1944908
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发表时间：
2021-06
影响因子：
2
通讯作者：
Y. Okamoto;R. Kitada;H. Tanabe;A. Sasaki;T. Kochiyama;N. Yahata;N. Sadato
中科院分区：
文献类型：
--
作者：
Y. Okamoto;R. Kitada;H. Tanabe;A. Sasaki;T. Kochiyama;N. Yahata;N. Sadato
摘要枕颞叶外侧皮质的纹外体区(EBA)在相互作用中起着重要作用，因为它检测到自己和他人手部动作的一致性。然而，目前尚不清楚EBA是否能够检测到一致性，无论采取何种类型的行动。在目前的研究中，我们研究了三种动作一致性检测的神经基础：手势、发声和面部表情。单变量分析显示，EBA中的所有三种动作都存在一致性效应，尤其是模仿动作。在所有实验中，EBA中的多体素模式分析分类器能够区分发起交互和响应交互。相应地，单变量分析表明，在EBA中，反应的一致性效应强于启动交互。这些发现表明，EBA可能有助于检测一致性，而不考虑使用的身体部位(即面部或手)和动作类型(即手势或声音)。此外，在EBA内部，发起和响应交互的处理方式可能有所不同。这项研究强调了EBA在比较自己和他人的手部动作以外的动作时的作用。跑头：EBA在相互模仿中的作用
ABSTRACT The extrastriate body area (EBA) in the lateral occipito-temporal cortex has an important role in reciprocal interaction, as it detects congruence between self and other’s hand actions. However, it is unclear whether the EBA can detect congruence regardless of the type of action. In the present study, we examined the neural substrate underlying congruence detection of three types of actions: hand gestures, vocalizations, and facial expressions. A univariate analysis revealed a congruency effect, especially for imitating action, for all three types of actions in the EBA. A multi-voxel pattern analysis classifier in the EBA was able to distinguish between initiating interaction from responding to interaction in all experiments. Correspondingly, the congruency effect in the EBA revealed by univariate analysis was stronger for responding to than for initiating interaction. These findings suggest that the EBA might contribute to detect congruence regardless of the body part used (i.e. face or hand) and the type of action (i.e. gestural or vocal). Moreover, initiating and responding to interaction might be processed differently within the EBA. This study highlights the role of the EBA in comparing between self and other’s actions beyond hand actions. Running head: Function of EBA in reciprocal imitation