Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 31 for “"song learning"”.
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Building a state space for song learning
Song learning circuitry is thought to operate using a unique representation of each moment within each song syllable. Distinct timestamps for each moment in the song have been observed in the premotor cortical nucleus HVC, where neurons burst in sparse sequences. However, such sparse sequences are …
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Song learning in the song sparrow (Melospiza melodia): ecological and social factors
During song learning, songbirds are exposed to many more songs then they keep for their final song repertoire and little is known about how or why a bird selects the particular songs he sings as an adult. These studies examine the social and ecological factors that influence song learning and …
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Molecular Analysis of Neural Structures During Song Learning in the Zebra Finch
The telencephalic pathway responsible for song learning and production in the male zebra finch is completed during adolescence. The precise molecular mechanisms underlying the formation of this song circuit are virtually unknown. Before we can understand and describe the molecular mechanisms …
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Unsupervised learning to quantify differences in song learning of experimental zebra finch populations
Zebra finch song learning is a common model of motor learning processes, but quantification of song properties is lacking, particularly for comparison of experimental populations across development. Sparse convolutional feature extraction, a method previously used to analyze other natural sounds, …
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The Role of Gene Regulation in Neural Circuit Development: Studies in the Zebra Finch
"The oscine songbird zebra finch learns to sing in a ""critical period"" in adolescence. Song acquisition and production are controlled by the brain song circuit which consists of auditory and motor pathways. The purpose of this thesis is to study genomic mechanisms underlying zebra finch song …
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Data-Driven Analysis of Zebra Finch Song Copying and Learning
… juvenile zebra finches learn to sing by learning to imitate adults. This song learning process enables laboratory study of juvenile imitative learning. But it also poses behavioral quantification challenges. Zebra finches produce hundreds of thousands of complex vocalizations during vocal …
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Neural mechanisms underlying the emergence of rhythmic and stereotyped vocalizations in juvenile songbirds
… that generate these motor behaviors during learning? To understand the neural mechanisms underlying learned motor skills, I use vocal learning in songbirds as a model. While previous studies have shown that a premotor area in the songbird brain, HVC, is important for stereotyped adult song, …
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Understanding The Role Of Nutritional Stress In The Adult And Developing Zebra Finch
<p>Songbirds are particularly susceptible to stress during the sensitive period for song learning. Thus the developmental stress hypothesis (DSH) proposes that adult song reflects a male's early life environment during this period. Nutritional stress (NS) has been shown to cause deficits in song …
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NEURAL BASIS OF PERFORMANCE EVALUATION IN BIRDS
Reinforcement learning (RL) is one of the most successful theories in the intersection between animal behavior, neural basis of learning, and artificial intelligence. RL-like computation in the brain is evidenced by representation of a key variable in the dopaminergic system, the reward prediction …
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Brain and Cognitive Consequences of Early-Life Immune System Challenge in a Songbird
… immune system challenge during the critical song learning period in zebra finches (Taeniopygia guttata) would lead to long term negative impacts on song quality and learning, spatial learning, and neophobia. Immune challenge during this period of development did not produce long term impacts …
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Variability in Singing and in Song in the Zebra Finch
… is a defining feature of the oscine song learning process, reflected in song and in the neural pathways involved in song learning. For the zebra finch, juveniles learning to sing typically exhibit a high degree of vocal variability, and this variability appears to be driven by a key …
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Predictability in an unpredictable world: Situating zebra finch (Taeniopygia guttata) personality in the contexts of mate choice and parental care
… a common laboratory species for studying song learning, and yet relatively understudied in terms of understanding ecologically relevant behaviors within groups. I first investigate whether zebra finches attend to personality traits when making social decisions, by examining whether …
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New Insights into the Evolution of Learned Vocalization from the Australian Zebra Finch, Taeniopygia castanotis
… events in evolution that produced a clade of song learning birds from non-song learning ancestors.This information is important for shedding light on the evolution of spoken language in our own human lineage, where evolutionary analyses are technically limited. The most recent common ancestor …
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Algorithms and circuits for motor control and learning in the songbird
… error. Many biologically based trial and error learning models depend on a teaching signal from dopamine neurons. Dopamine neurons increase their firing rates to signal outcomes that are better than expected and decrease their firing rates to signal outcomes that are worse than expected. This …
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Immanuel Kant's Sparrow
The adoption of foreign song elements occurs under natural conditions in various songbird species including the house sparrow Passer domesticus, even though it may go largely unnoticed by humans. House sparrows singing canary song have been known by hobbyists for a long time. My study is the first …
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Multiple Intelligence Theory and its Application in Modern Vocal Pedagogy
… of MI principles, using aspects of their song learning chapters as a template that can be adapted to any vocal pedagogy text.</p>
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Mechanisms of Vocal Coordination in Zebra Finches
… structures that are known to be involved in song learning are required for the coordination of calls. We discovered that zebra finches can learn to adjust the timing of their responses to a robot bird partner within minutes. Further, when challenged with complex rhythms containing jamming …
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Neuronal FMRP: facilitating learning in a critical brain network for zebra finch song acquisition and regulating synaptic miRNAs spatio-temporally
… properly. Because FXS has both impaired learning and atypical vocalization, it is conceivable that these two features are linked by impaired vocal learning. Our hypothesis is that FMRP is necessary for normal vocal learning. An established model for vocal learning, and thereby ideal for …
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Assessing the Phylogenetic and Cultural Content of Learned Song
<p>In the oscine songbirds, song is learned by a juvenile from a tutor of the same species, in a pattern that is analogous to human language, and likewise has the potential to change over time by cultural evolution. The similarities between human languages have been studied for centuries, but …
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Dissecting the Genetic Basis of Convergent Complex Traits Based on Molecular Homoplasy
… genetics of a complex behavioral trait, vocal learning, which serves as a critical substrate for human spoken language. With the available genomes of 23 mammals, I developed a novel approach based on molecular homoplasy to reveal Single Non-random Amino Acids Patterns (SNAAPs) that are …
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