Yawning Is More Contagious in Pregnant Than Nulliparous Women: Naturalistic and Experimental Evidence
Contrary to spontaneous yawning, which is widespread in vertebrates and probably evolutionary ancient, contagious yawning—yawning triggered by others’ yawns—is considered an evolutionarily recent phenomenon, found in species characterized by complex sociality. Whether the social asymmetry observed i...
Main Authors: | , , , , , , |
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Format: | Article |
Language: | English |
Published: |
Springer
2021
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Subjects: | |
Online Access: | View Fulltext in Publisher |