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Zebra finch are born in the spring when they are exposed to a con-specific male song. Later in the spring the bird begins to vocalize and the song gradually converges to the tutor song. There is increasing evidence that birdsong learning occurs through associative reward-penalty reinforcement learni ...

Brains need to make quick sense of massive amounts of ambiguous information with minimal energy costs and have evolved an intriguing mixture of analog and digital mechanisms to allow this efficiency. Analog electrical and biochemical signals inside neurons are used for integrating synaptic inputs fr ...