We discussed the new Grambank database a few months ago; now the Max Planck Institute for Evolutionary Anthropology reports at Phys.org on a study they’ve done using it:
Languages around the world differ greatly in how many grammatical distinctions they make. This variation is observable even between closely related languages. […] This grammatical distinction in the case system, along with many others, sets Icelandic apart from its closely related sister languages. “One prominent hypothesis about why some languages show more complex grammar than others links grammatical complexity to the social environments in which these languages are used,” says first author Olena Shcherbakova from the Max Planck Institute for Evolutionary Anthropology.
For example, Icelandic is primarily learned and used by the local population of over 350,000 people. Such relatively small isolated communities are also called “societies of intimates.” In contrast, the other Scandinavian countries, located in close proximity to their neighbors, have larger populations with substantial proportions of non-native speakers.
Such communities are known as “societies of strangers.” Many linguists have claimed that languages with more non-native speakers tend to simplify their grammars, as unlike children, adult learners struggle to acquire complex grammatical rules to master the intricacies of their new language.
But is this Icelandic example representative of the striking linguistic diversity worldwide? Researchers at the Max Planck Institute of Evolutionary Anthropology wanted to find out if the grammars of languages tend to evolve simpler when spoken by larger societies of strangers with many non-native speakers.
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