Featured
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Article |
Neural dynamics underlying birdsong practice and performance
In male zebra finches, song practice and courtship song performance are associated with distinct patterns of neural activity in the basal ganglia, resulting in reduced vocal variability during performance.
- Jonnathan Singh Alvarado
- , Jack Goffinet
- & Richard Mooney
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Article |
Nearest neighbours reveal fast and slow components of motor learning
A new method for analysing change in high-dimensional data is based on nearest-neighbour statistics and is applied here to song dynamics during vocal learning in zebra finches, but could potentially be applied to other biological and artificial behaviours.
- Sepp Kollmorgen
- , Richard H. R. Hahnloser
- & Valerio Mante
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Letter |
A mesocortical dopamine circuit enables the cultural transmission of vocal behaviour
A dopaminergic mesocortical circuit in juvenile zebra finches detects the presence of an adult zebra finch tutor and helps to encode the performance of the tutor, facilitating the cultural transmission of vocal behaviour.
- Masashi Tanaka
- , Fangmiao Sun
- & Richard Mooney
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Letter |
Stepwise acquisition of vocal combinatorial capacity in songbirds and human infants
In two species of songbirds and in pre-lingual human infants, vocal transitions across syllables are acquired slowly, one by one, indicating that combinatorial ability is not the starting point of vocal development but a laboriously achieved end point.
- Dina Lipkind
- , Gary F. Marcus
- & Ofer Tchernichovski
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Article |
Elemental gesture dynamics are encoded by song premotor cortical neurons
The auditory response of song premotor HVC neurons in sleeping birds, and HVC activity in singing birds, is synchronized with particular moments of vocal motor movements as defined by a dynamical systems model of song production; this HVC activity could be used as a ‘forward’ model to predict behaviour and evaluate feedback.
- Ana Amador
- , Yonatan Sanz Perl
- & Daniel Margoliash
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News |
Finches learn even when practice isn't perfect
Covert skill-development in songbirds challenges brain model.
- Mo Costandi
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Article |
Support for a synaptic chain model of neuronal sequence generation
When songbirds sing, neurons in premotor areas fire coordinated bursts precisely timed to the dynamics of the song. The cellular mechanism for such sequence generation is unknown. These authors make the technical breakthrough of recording intracellularly in HVC neurons in singing birds, allowing them to test models of burst generation. They found that membrane potential rapidly depolarizes 5–10 ms before burst onset, consistent with models in which HVC neurons form synaptically connected chains.
- Michael A. Long
- , Dezhe Z. Jin
- & Michale S. Fee