68 results found
    1. Neuroscience

    A role for descending auditory cortical projections in songbird vocal learning

    Yael Mandelblat-Cerf et al.
    Midbrain dopaminergic neurons and a cortex-like structure called the arcopallium form part of a circuit that enables young songbirds to compare their own song with a template stored in memory, and use any discrepancies to improve their performance.
    1. Neuroscience

    Songbirds can learn flexible contextual control over syllable sequencing

    Lena Veit et al.
    Songbirds can use arbitrary visual cues to immediately, flexibly and adaptively control syntax of learned song vocalizations in a manner that parallels human cognitive control over syllable sequencing in speech.
    1. Neuroscience

    Sexual dimorphism in striatal dopaminergic responses promotes monogamy in social songbirds

    Kirill Tokarev et al.
    Co-evolution of sexually dimorphic reinforcement systems for song can explain the coexistence of the seemingly contradictory traits of gregariousness and monogamy in social songbirds.
    1. Neuroscience

    miR-9 regulates basal ganglia-dependent developmental vocal learning and adult vocal performance in songbirds

    Zhimin Shi et al.
    Gene manipulation combined with behavior analysis reveals a role of miR-9 in modulating basal-ganglia-dependent developmental vocal learning and adult vocal performance via regulating the FOXP1/FOXP2 gene network and dopamine signaling in songbirds.
    1. Neuroscience

    Acetylcholine acts on songbird premotor circuitry to invigorate vocal output

    Paul I Jaffe, Michael S Brainard
    The neuromodulator acetylcholine contributes to state-dependent modulation of motor vigor and variability by direct action on songbird premotor cortex, bypassing basal ganglia circuitry.
    1. Neuroscience

    Neural activity in cortico-basal ganglia circuits of juvenile songbirds encodes performance during goal-directed learning

    Jennifer M Achiro et al.
    Activity in cortico-basal ganglia circuits of juvenile songbirds reflects evaluative signals necessary for comparing self-generated behavior to a goal representation during skill learning.
    1. Neuroscience

    A subcortical circuit linking the cerebellum to the basal ganglia engaged in vocal learning

    Ludivine Pidoux et al.
    The cerebellum sends a functional input to the song-related basal ganglia via the thalamus in songbirds that can modify premotor activity, and it participates to song learning in juvenile birds.
    1. Neuroscience

    A neural circuit mechanism for regulating vocal variability during song learning in zebra finches

    Jonathan Garst-Orozco et al.
    By demonstrating song learning-related synaptic strengthening and pruning in the vocal control circuits of songbirds, and showing how such changes can reduce the sensitivity of the circuit to ‘noisy’ inputs, a simple neural circuit mechanism for regulating motor variability during motor skill learning is identified.
    1. Computational and Systems Biology
    2. Evolutionary Biology

    Correlated evolution between repertoire size and song plasticity predicts that sexual selection on song promotes open-ended learning

    Cristina M Robinson et al.
    A longer birdsong-learning window evolves in response to sexual selection for song complexity and is associated with faster evolution of song performance characteristics.
    1. Neuroscience

    Auditory synapses to song premotor neurons are gated off during vocalization in zebra finches

    Kosuke Hamaguchi et al.
    Intracellular recordings in singing birds and images of synapses in deafened birds provide insights into the neural circuitry that enables songbirds to fine-tune their songs.

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