Home > Search Results: keywords:"úsměv|smích|evoluční funkce|druhy úsměvu|spontánní úsměv"
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National Repository of Grey Literature 1 records found  Search took 0.01 seconds. 
Phylogenetic roots and possible evolutionary functions of smile and laughter in humans
 Kersch, Jakub ; Špinka, Marek (advisor) ; Štětovská, Iva (referee)
The bachelor thesis focuses on smile and laughter from the evolutionary point of view. The first chapter briefly describes van Hooff's concept that smile and laughter had different phylogenetic origins and consequently both these facial signals converged. On the contrary, the opposition concept assumes only a difference in intensity between both signals. The second chapter is devoted to the classification of smile (eventually laughter) into different types. The basic classification includes spontaneous and non- spontaneous types. The characteristics of these two kinds of smile (laughter) are described, including perception and functional differences. Further, the thesis includes a more detailed division into 18 species according to Ekman's concept. The third chapter focuses on a fetal smile shown during the prenatal period and a spontaneous (neonatal) smile associated with neonatal and infant age. Connection between smile and an adult-child interaction is also mentioned. The fourth chapter deals with the social dimension of the theme. The different social functions of smile and laughter and the importance of the social context for both of these signals are described here. A relationship between laughter and play is mentioned as well. The research project proposal deals with the spontaneous...
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