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Sequence variability and learning in Bengalese finch song

Authors: Kennedy, Malcolm;

Sequence variability and learning in Bengalese finch song

Abstract

Les oiseaux chanteurs (oiseaux appartenants à la clade Passeri), sont parmi peu de taxa vertébrés dont les vocalisations sont apprises parmi le développement (Jarvis, 2019). Contrairement à certains oiseaux chanteurs (par exemple, le Diamant mandarin ou le Bruant à couronne blanche), les Moineaux du Japon (Lonchura striata domestica) produisent des séquences d’éléments acoustiques (“syllabes”) qui varient de chant en chant, ainsi qui parmi les oiseaux individus (Okanoya, 2004a, 2004b). Cependant, ces séquences ne sont pas aléatoires: les indices comportementaux et neuraux soutiennent le codage du contexte séquentiel pendant la génération des séquences syllabiques dans les Moineaux du Japon (Jin & Kozhevnikov, 2011; Warren et al, 2012). J’examine la variance en variabilité séquentielle parmi les oiseaux individus, et le rôle du de la variabilité séquentielle dans l’apprentissage. Je trouve que la variabilité séquentielle est contrainte par le contexte séquentiel parmi les oiseaux, tel que les oiseaux convergent plus étroitement quand le contexte séquentiel a été pris en compte, que quand il ne l’a pas. De plus, je trouve que la variabilité des séquences ou un syllable se trouve le plus souvent est reliée au succès d’apprentissage acoustique et séquentiel pour ce syllable

Songbirds are one of a small number of vertebrate taxa that learn their vocalizations over development (Jarvis, 2019). Unlike some songbird species (e.g. zebra finch, white-crowned sparrow), Bengalese finches (Lonchura striata domestica) produce sequences of acoustic elements (syllables) that are variable from redition to rendition, as well as across individuals (Okanoya, 2004a, 2004b). However, these sequences are not random: both behavioural and neural evidence has supported the encoding of sequential context over more than the preceding syllable during sequence generation in Bengalese finches (Jin & Kozhevnikov, 2011; Warren et al, 2012). I investigate between-bird variance in sequence variability in Bengalese finch song, and assess the role of sequence variability in learning success. I find that sequence variability is constrained by sequential context across birds, such that birds converge more closely in sequence variability when sequential context has been accounted for, than when it has not. In addition, I find that the variability of the sequences in which a syllable is embedded significantly relates to the extent of acoustic and sequence learning for that syllable

Sakata, Jon (Supervisor)

Country
Canada
Related Organizations
Keywords

Biology

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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Average
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