In a recent study, researchers from the Max Planck Institute for Ornithology investigated how two brain regions, the basal ganglia and the anterior forebrain pathway (AFP), interact to help male zebra finches learn and adjust their songs in response to different social contexts. The basal ganglia are involved in decision-making and action selection, while the AFP is known to be important for vocal learning and communication.

The researchers hypothesized that these brain regions work together as a "vocal control circuit" to enable finches to adjust their songs based on social context. This allows them to sing differently when interacting with potential mates compared to when they are defending their territory, for example. To test this hypothesis, the researchers manipulated neural activity in both brain regions, recording song output under different social contexts

As predicted, changes in neural activity in the basal ganglia influenced how much zebra finches adjusted their songs in response to changes in social context. Furthermore, alterations in AFP activity affected which acoustic features, or aspects of their songs, finch's adapted.

Taken together, this study provided evidence for how two specific brain regions collaborate to orchestrate social interactions within finches based on vocal communication.

Source:

Max Planck Institute for Ornithology (2023, January 6) How Brain Circuitry Helps Finches Sing the Right Song at the Right Time. (Press release) Science Direct. https://www.sciencedirect.com/science/article/pii/S0306452223000025?via%3Dihub