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Segments in animal vocalizations: A novel approach to understanding non- human vocal behavior

Project description

Budgerigars can tell us about vocal communication

Budgerigars are highly social parrots with a complex, learned vocal repertoire. As with other parrots, this species is also well known as a vocal mimic. The EU-funded SEGVOC project will study the non-stereotyped vocalisations of budgerigars. The findings will build on research comparing human and non-human animal communication that has left vocal behaviour unexplored. For instance, in non-human animal vocal behaviour, the smallest unit of analysis is the syllable or breath group, where intakes of breath divide the acoustic stream. Humans, however, can utter full words, phrases and even sentences between intervals of silence. The project will develop methods and experimental protocols to study the production and perception of non-human vocal segments.

Objective

Research comparing human and non-human animal communication has made great strides over the past half-century, yet, aspects of vocal behavior remain unexplored. In non-human animal vocal behavior, the smallest unit of analysis is the syllable or breath group, where intakes of breath divide the acoustic stream. Humans, however, can utter full words, phrases, and even sentences between intervals of silence. If alien researchers used the breath group as the smallest domain of analysis in human vocal behavior, they would be confused as to how “five spiders” and “more than four spiders” elicits similar responses but “five spiders” and “five ciders” are treated completely differently. In humans, segments – units that build words and phrases and are divided by acoustic transitions rather than silent intervals – are central to our understanding of language and have clarified the extent and limits to cross-population variability, how humans categorize acoustic stimuli, how languages change over time, and how learning and biology interact to create culture. Because of the central role in understanding language, segment analyses can greatly enhance our understanding of animal vocal behavior, as well. Building on my PhD research, I will further develop tools, methods, and experimental protocols to study the production and perception of non-human vocal segments. While the experimental work will focus on the non-stereotyped vocalizations of budgerigars (a small parrot species), I will apply a segmental approach to the vocalizations of a range of species. Because these segments are more acoustically analogous, they provide better units of comparison across species.

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Topic(s)

Funding Scheme

MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)

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Call for proposal

(opens in new window) H2020-MSCA-IF-2020

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Coordinator

OESTERREICHISCHE AKADEMIE DER WISSENSCHAFTEN
Net EU contribution
€ 186 167,04
Address
DR. IGNAZ SEIPEL-PLATZ 2
1010 Wien
Austria
Region
Ostösterreich Wien Wien
Activity type
Research Organisations
Links
Total cost
€ 186 167,04