Humans Discriminate Individual Zebra Finches by their Song

Comparative experiments have greatly advanced the field of biolinguistics in the 21st century, but so far very little research has focused on human perception of non-human animal vocalizations. Studies with zebra finch (Taeniopygia guttata) songs found that humans cannot perceive the full range of a...

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Main Authors: Sabrina Schalz, Thomas E. Dickins
Format: Article
Language:English
Published: PsychOpen GOLD/ Leibniz Institute for Psychology 2021-03-01
Series:Biolinguistics
Subjects:
Online Access:https://doi.org/10.5964/bioling.9161
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author Sabrina Schalz
Thomas E. Dickins
author_facet Sabrina Schalz
Thomas E. Dickins
author_sort Sabrina Schalz
collection DOAJ
description Comparative experiments have greatly advanced the field of biolinguistics in the 21st century, but so far very little research has focused on human perception of non-human animal vocalizations. Studies with zebra finch (Taeniopygia guttata) songs found that humans cannot perceive the full range of acoustic cues that zebra finches hear in their songs, although it remained unclear how much individual information is lost. Individual heterospecific discrimination by humans has only been shown with rhesus monkey (Macaca mulatta) voices. The present study examined whether human adults could discriminate two individual zebra finches by their songs, using a forced- choice Same-Different Paradigm. Results showed that adults can discriminate two individual zebra finches with high accuracy and without prior training. Discrimination mostly relied on differences in pitch contour, but discrimination was still possible with lower accuracy when pitch contour was removed. Future studies should expand these findings with more diverse non-human animal vocalizations.
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spelling doaj.art-d291e1e5f9fc41e9ac1c6c3a6b971d662024-01-31T09:35:42ZengPsychOpen GOLD/ Leibniz Institute for PsychologyBiolinguistics1450-34172021-03-011413014410.5964/bioling.91619161Humans Discriminate Individual Zebra Finches by their SongSabrina Schalz0Thomas E. Dickins1Middlesex UniversityMiddlesex UniversityComparative experiments have greatly advanced the field of biolinguistics in the 21st century, but so far very little research has focused on human perception of non-human animal vocalizations. Studies with zebra finch (Taeniopygia guttata) songs found that humans cannot perceive the full range of acoustic cues that zebra finches hear in their songs, although it remained unclear how much individual information is lost. Individual heterospecific discrimination by humans has only been shown with rhesus monkey (Macaca mulatta) voices. The present study examined whether human adults could discriminate two individual zebra finches by their songs, using a forced- choice Same-Different Paradigm. Results showed that adults can discriminate two individual zebra finches with high accuracy and without prior training. Discrimination mostly relied on differences in pitch contour, but discrimination was still possible with lower accuracy when pitch contour was removed. Future studies should expand these findings with more diverse non-human animal vocalizations.https://doi.org/10.5964/bioling.9161individual discriminationzebra finchpitch contourhuman perception
spellingShingle Sabrina Schalz
Thomas E. Dickins
Humans Discriminate Individual Zebra Finches by their Song
Biolinguistics
individual discrimination
zebra finch
pitch contour
human perception
title Humans Discriminate Individual Zebra Finches by their Song
title_full Humans Discriminate Individual Zebra Finches by their Song
title_fullStr Humans Discriminate Individual Zebra Finches by their Song
title_full_unstemmed Humans Discriminate Individual Zebra Finches by their Song
title_short Humans Discriminate Individual Zebra Finches by their Song
title_sort humans discriminate individual zebra finches by their song
topic individual discrimination
zebra finch
pitch contour
human perception
url https://doi.org/10.5964/bioling.9161
work_keys_str_mv AT sabrinaschalz humansdiscriminateindividualzebrafinchesbytheirsong
AT thomasedickins humansdiscriminateindividualzebrafinchesbytheirsong