tutor
New research shows that premotor neurons are activated in the brains of adolescent male zebra finches whenever a young bird hears their father (a tutor) sing. These are the same neurons that are usually activated in anticipation of movement. What is special about this, is that as the birds learned new songs or pieces of new songs, activation of these neurons declined. This effect was due to inhibitory interneurons whose firing frequency increased as the birds practiced and improved their accuracy. Activation of these inhibitory interneurons prevented any further changes to the circuitry once…