摘要
For socialized animals,such as prinlates,emotions arc the expression of internal states,which may be recognized by others to adjust an in dividual's potential actions(Girard and Bellone 2020).Facial expressions are therefore important signals in communication(e.g.,happy or in pain)and can help individuals understand potential meanings between each other(Dolensek et al.2020).Facial expressions can be expressed and processed freely and are useful in social interactions and bonding(Waller et al.2016).
基金
This study was supported by the Key Program of the National Natural Science Fund(31730104)
National Natural Science Foundation of China(31801981)
Strategic Priority Research Program of the Chinese Academy of Sciences(XDB31020302)
National Key Program of Research and Development,Ministry of Science and Technology(2016YFC0503200)
Innovation Capability Support Program of Shaanxi(2020KJXX-008)
Foundation of Shaanxi Academy of Sciences of China(2016K-20,2018K-16-04,2019ZY-JCTJ-06)
Key Research and Development Program of Shaanxi Province of China(2018PT-04)
One Institute One Brand Foundation of Shaanxi Academy of Sciences(2020k-01).
