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9 results for “Budgerigars”
Data from: Stimulus dependent emergence of understanding analogical relations in budgerigars
<p>The ability for analogical reasoning, such as understanding that the relationship between two items is similar to the relationship between two other items, has long been considered to be unique to humans. Whether and to what extent non-human animals can recognize such relational analogies is still debated. We tested such abilities in two groups of budgerigars with a diverse set of item categories in which the figures of the stimuli were quite different in nature (size, color, shape, geometric type, and number). Budgerigars trained to discriminate two identical figures from the same two figures differing in size, generalized the discrimination to test stimuli belonging to the novel categories, demonstrating the spontaneous use of analogical relations. In contrast, budgerigars trained to discriminate two circles that were either the same or different in color seemed to generalize to novel stimuli by perceptual rather than conceptual similarity. The results thus demonstrate the spontaneous emergence of perceiving analogical relations in budgerigars of a nature beyond that demonstrated in previous studies of non-primate species. However, the results also show that whether budgerigars generalize a relationship by perceptual or conceptual similarity seems dependent on the nature of the training stimuli.</p>
Data from: Stimulus dependent emergence of understanding analogical relations in budgerigars
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Evidence for maintenance of key components of vocal learning in aging budgerigars despite diminished affiliative social interaction
<p>In some species, the ability to acquire new vocalizations persists into adulthood and may be an important mediator of social interactions. While it is generally assumed that vocal learning persists undiminished throughout the lifespan of these open-ended learners, the stability of this trait remains largely unexplored. We hypothesize that vocal learning exhibits senescence, as is typical of complex cognitive traits, and that this decline may relate to age-dependent changes in sociality. The budgerigar (<em>Melopsittacus undulatus</em>), an open-ended learner which develops new contact call types that are shared with social associates upon joining new flocks, provides a robust assay for measuring the effects of aging on vocal learning ability. We formed captive flocks of 4 previously unfamiliar adult males of the same age class, either "young adults" (6 mo.-1 yr.) or "older adults" (≥ 3 yr.), and concurrently tracked changes in contact call structure and social interactions over time. Older adults exhibited decreased vocal diversity, which may be related to the sparser and weaker affiliative bonds observed in older adults. Older adults, however, displayed equivalent levels of vocal plasticity and vocal convergence compared to young adults, suggesting vocal learning ability is largely maintained into later adulthood in an open-ended learner.</p>
Evidence for maintenance of key components of vocal learning in aging budgerigars despite diminished affiliative social interaction
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Data from: Chromosome-level assembly reveals extensive rearrangement in saker falcon and budgerigar, but not ostrich, genomes
The number of de novo genome sequence assemblies is increasing exponentially; however, relatively few contain one scaffold/contig per chromosome. Such assemblies are essential for studies of genotype-to-phenotype association, gross genomic evolution, and speciation. Inter-species differences can arise from chromosomal changes fixed during evolution, and we previously hypothesized that a higher fraction of elements under negative selection contributed to avian-specific phenotypes and avian genome organization stability. The objective of this study is to generate chromosome-level assemblies of three avian species (saker falcon, budgerigar, and ostrich) previously reported as karyotypically rearranged compared to most birds. We also test the hypothesis that the density of conserved non-coding elements is associated with the positions of evolutionary breakpoint regions.
Data from: Cognition, personality, and stress in budgerigars, Melopsittacus undulatus
To study the fitness effects of individual variation in cognitive traits, it is paramount to understand whether traits such as personality and physiological stress influence cognitive performance. We first tested whether budgerigars showed both consistent personalities and cognitive performance across time and tasks. We tested object and food neophobia, and exploratory behavior. We measured cognitive performance in habituation, ability to solve foraging problems, spatial memory, and seed discrimination tasks. Budgerigars showed consistency in their neophobic tendencies and these tendencies were associated with their exploratory behavior. Birds were also consistent in how they performed in most of the cognitive tasks (temporal consistency), but were not consistent in their performance across tasks (context consistency). Neither corticosterone levels (baseline and stress-induced) showed a significant relationship with either cognitive or personality measures. Neophobic and exploratory tendencies determined the willingness of birds to engage only in the seed discrimination task. Such tendencies also had a significant effect on problem-solving ability. Our results suggest that consistent individual differences in cognitive performance along with consistent differences in personality could determine response to environmental change and therefore have important fitness consequences.
Data from: Cognition, personality, and stress in budgerigars, Melopsittacus undulatus
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Data from: Chromosome-level assembly reveals extensive rearrangement in saker falcon and budgerigar, but not ostrich, genomes
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Unmasking budgerigar splenic leukocyte populations with single cell transcriptomics
GEO Series GSE273701. Melopsittacus undulatus. 1 samples. Type: Expression profiling by high throughput sequencing.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.