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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 47 for “"zebra finch"”.
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MicroRNA gene expression in the zebra finch brain
Songbirds such as zebra finches communicate via learned vocalizations (songs) and studies have shown that experiencing song playback triggers complex genomic responses in the zebra finch auditory forebrain. MicroRNAs (miRNAs or miRs) are important regulators of gene expression which may coordinate …
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Variability in Singing and in Song in the Zebra Finch
… 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 brain nucleus. It has been suggested that this variability is a necessary part of a trial-and-error …
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Data-Driven Analysis of Zebra Finch Song Copying and Learning
… behavior of skilled adults. Similarly, 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 …
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Effects of Artificial Light at Night on Zebra Finch Nocturnal Behavior
… exposure to dim ALAN are lacking. I exposed zebra finches (Taeniopygia guttata) to dim ALAN (1.5 lux) and used infrared video recording to test how ALAN affects specific nocturnal behaviors. I recorded body movement, hopping, grooming, eating, and drinking at four timepoints in the night …
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Complex Acoustical Feature Representation in the Zebra Finch Caudomedial Neostriatum (Ncm)
Zebra finches use an array of complex vocal patterns (songs) to mediate individual as well as species recognition. Although behaviorally obvious, it is unclear how these discrete auditory perceptual objects are represented in the brain and linked to appropriate behavioral responses. In the …
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Small molecule profiling and imaging of the zebra finch song system
… molecules (i.e. lipids and metabolites) in the zebra finch song system, a songbird. I will use analytical tools and methods to detect and image the spatial distribution of small molecules (e.g. lipids) across the song system. In addition I will investigate changes in small molecules in the …
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Neural network models for zebra finch song production and reinforcement learning
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2001.
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Emerging Auditory Selectivity in the Caudomedial Neostriatum of the Zebra Finch Songbird
… multiunit neuronal responses in awake, behaving zebra finch songbirds, I have demonstrated that the caudomedial neostriatum (NCM), a telencephalic nucleus in the ascending auditory pathway, exhibits responses that range from unselective to highly selective for species-specific stimuli. Sites …
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Post-natal environmental effects on behaviour in the zebra finch (Taeniopygia guttata)
… on behavioural traits in adulthood, using the zebra finch (Taeniopygia guttata) as a model species. There is already evidence to suggest that the early environment can shape behaviour, and consequently, many aspects of behaviour may have important developmental origins that are not a direct …
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Molecular Analysis of Neural Structures During Song Learning in the Zebra Finch
… 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 governing the song circuit, however, we …
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Understanding The Role Of Nutritional Stress In The Adult And Developing Zebra Finch
… and neural processes, in both juvenile and adult zebra finches of both sexes.</p>
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Control of Sexually Dimorphic Brain Pathway Development in Cultured Zebra Finch Brain Slices
In zebra finches (Taeniopygia guttata), males sing but not females. Previous studies showed singing requires the formation of a male-specific projection from nucleus HVC (higher vocal center, in the neostriatum) to nucleus RA (robust nucleus of the archistriatum). Fibers from HVC first enter the …
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Energy Requirements for Egg-Laying and Incubation in the Zebra Finch, Poephila Guttata
Made available in DSpace on 2014-12-10T18:13:25Z (GMT). No. of bitstreams: 1 6511776.pdf: 1589202 bytes, checksum: 7b4a9444612637fe6ff185f12f291945 (MD5) Previous issue date: 1965
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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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New Insights into the Evolution of Learned Vocalization from the Australian Zebra Finch, Taeniopygia castanotis
<p>The common goal of my thesis is to understand the causative 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 …
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The Role of DNA Methylation in Defining the Vocal Learning Transcriptome of the Zebra Finch
… differential specialized gene expression in the zebra finch, one of the most well-studied songbirds, is associated with differential DNA methylation. To do so, I performed whole-genome bisulfite sequencing in the RA song nucleus and its adjacent non-vocal motor region. I found that the convergent …
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Radio-biotelemetry studies of circadian body temperature rhythms and activity levels [of the] zebra finch (Peophilia guttata)
… the normal thermoregulatory patterns of zebra finches (Poephilia guttat) in as near a normal physiological and behavioral state as possible. Surface body temperature and level of activity were the two primary channels of information. Radiobioelemetry allowed the reduction of external …
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Birdie see, Birdie do: Zebra finch observational learning in three cognitive domains with discussion of cerebellar involvement
… the cerebellum in information acquisition. Using zebra finches I tested three types of observational learning (stimulus enhancement, observational conditioning, and imitation). I found that female zebra finches selected males based on observations of the traits of the females paired with the males …
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Constraints on the evolution of attractive traits: Natural selection, sexual selection and quantitative genetics in the zebra finch
… color (an attractive male trait) variation in zebra finches (Taeniopygia guttata). The primary objective of my research was to test several predictions of the good-genes and runaway sexual selection hypotheses. In a 19 month breeding experiment, I found that redder billed males have more …
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