112 results found
    1. Neuroscience

    Shared mechanisms of auditory and non-auditory vocal learning in the songbird brain

    James N McGregor, Abigail L Grassler ... Samuel J Sober
    A novel, non-auditory learning paradigm reveals that songbirds can modify their vocal output based on somatosensory signals and that a common set of brain pathways underlies both this form of vocal learning and auditory-guided vocal learning.
    1. Neuroscience

    A role for descending auditory cortical projections in songbird vocal learning

    Yael Mandelblat-Cerf, Liora Las ... Michale S Fee
    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, Lucas Y Tian ... Michael S Brainard
    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, Julia Hyland Bruno ... Henning U Voss
    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

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

    Jennifer M Achiro, John Shen, Sarah W Bottjer
    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

    Motor cortex analogue neurons in songbirds utilize Kv3 channels to generate ultranarrow spikes

    Benjamin M Zemel, Alexander A Nevue ... Henrique von Gersdorff
    Molecular and electrophysiological evidence shows that Kv3 subunits contribute critically to ultrashort action potential waveforms and high-frequency firing in large projection neurons in zebra finch motor nuclei controlling song production and somatic movements.
    1. Neuroscience

    Lesions in a songbird vocal circuit increase variability in song syntax

    Avani Koparkar, Timothy L Warren ... Lena Veit
    A forebrain nucleus contributes specifically to the variability of syllable sequencing in songs of Bengalese finches, a songbird with complex syntactic song structure.
    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

    Goal-directed vocal planning in a songbird

    Anja T Zai, Anna E Stepien ... Richard HR Hahnloser
    Zebra finches are capable of overt vocal planning, but to reach a distant vocal target beyond the range of recently produced pitch requires both practice and auditory feedback.
    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, Kate T Snyder, Nicole Creanza
    A longer birdsong-learning window evolves in response to sexual selection for song complexity and is associated with faster evolution of song performance characteristics.

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