At grammatical faculty of language, flies outsmart men.

Autor: Stoop R; Institute of Neuroinformatics, University and ETH of Zurich, Zurich, Switzerland., Nüesch P, Stoop RL, Bunimovich LA
Jazyk: angličtina
Zdroj: PloS one [PLoS One] 2013 Aug 23; Vol. 8 (8), pp. e70284. Date of Electronic Publication: 2013 Aug 23 (Print Publication: 2013).
DOI: 10.1371/journal.pone.0070284
Abstrakt: Using a symbolic dynamics and a surrogate data approach, we show that the language exhibited by common fruit flies Drosophila ('D.') during courtship is as grammatically complex as the most complex human-spoken modern languages. This finding emerges from the study of fifty high-speed courtship videos (generally of several minutes duration) that were visually frame-by-frame dissected into 37 fundamental behavioral elements. From the symbolic dynamics of these elements, the courtship-generating language was determined with extreme confidence (significance level > 0.95). The languages categorization in terms of position in Chomsky's hierarchical language classification allows to compare Drosophila's body language not only with computer's compiler languages, but also with human-spoken languages. Drosophila's body language emerges to be at least as powerful as the languages spoken by humans.
Databáze: MEDLINE