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A study on the asymmetric cylinder wall thickness difference discrimination by dolphins
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22 |
Using Twitter to access the human right of communication for people who use Augmentative and Alternative Communication (AAC)
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23 |
Identification of participants for a questionnaire and interview study investigating the feasibility issues encountered during stepped-wedge cluster randomised trials
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Influence of early-life nutritional stress on songbird memory formation
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Abstract:
In birds, vocal learning enables the production of sexually selected complex songs, dialects and song copy matching. But stressful conditions during development have been shown to affect song production and complexity, mediated by changes in neural development. However, to date, no studies have tested whether early-life stress affects the neural processes underlying vocal learning, in contrast to song production. Here, we hypothesized that developmental stress alters auditory memory formation and neural processing of song stimuli. We experimentally stressed male nestling zebra finches and, in two separate experiments, tested their neural responses to song playbacks as adults, using either immediate early gene (IEG) expression or electrophysiological response. Once adult, nutritionally stressed males exhibited a reduced response to tutor song playback, as demonstrated by reduced expressions of two IEGs (Arc and ZENK) and reduced neuronal response, in both the caudomedial nidopallium (NCM) and mesopallium (CMM). Furthermore, nutritionally stressed males also showed impaired neuronal memory for novel songs heard in adulthood. These findings demonstrate, for the first time, that developmental conditions affect auditory memories that subserve vocal learning. Although the fitness consequences of such memory impairments remain to be determined, this study highlights the lasting impact early-life experiences can have on cognitive abilities.
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Keyword:
auditory; Biology; BIRDSONG MEMORY; BRAIN-DEVELOPMENT; CONSPECIFIC SONG; developmental stress; EARLY GENE ZENK; Ecology; electrophysiology; Environmental Sciences & Ecology; Evolutionary Biology; FINCH TAENIOPYGIA-GUTTATA; HONEST SIGNAL; IEG; Life Sciences & Biomedicine; Life Sciences & Biomedicine - Other Topics; MATE CHOICE; Science & Technology; SPATIAL MEMORY; vocal learning; zebra finch
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URL: http://hdl.handle.net/10536/DRO/DU:30114060
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25 |
Barriers to breast cancer screening among diverse cultural groups in Melbourne, Australia
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26 |
Language continuity despite population replacement in Remote Oceania
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27 |
Right hemisphere grey matter volume and language functions in stroke aphasia
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28 |
Prediction in a visual language: real-time sentence processing in American Sign Language across development
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29 |
Role of N-methyl-D-aspartate receptors in action-based predictive coding deficits in schizophrenia
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30 |
Phase 2 of CATALISE: a multinational and multidisciplinary Delphi consensus study of problems with language development: terminology
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31 |
EEG power at 3 months in infants at high familial risk for autism
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32 |
A simulation of temperature influence on echolocation click beams of the Indo-Pacific humpback dolphin (Sousa chinensis)
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33 |
Reconstruction of the forehead acoustic properties in an IndoPacific humpback dolphin (Sousa chinensis), with investigation on the responses of soft tissue sound velocity to temperature
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34 |
A call for innovative social media research in the field of augmentative and alternative communication
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35 |
Evidence and innovation in AAC research: expanding borders and boundaries for a global audience
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36 |
Echoes on the motor network: how internal motor control structures afford sensory experience
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37 |
Speech-language pathology telehealth in rural and remote schools: the experience of school executive and therapy assistants
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38 |
Training direct-care staff to provide communication intervention to adults with intellectual disability: a systematic review
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Experiences of participation in goal setting for people with stroke-induced aphasia in Norway. A qualitative study
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40 |
Detection of ground parrot vocalisation: a multiple instance learning approach
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