Dopamine neurons have a role in movement, new study finds (Nature Neuroscience)

By Catherine Zandonella, Office of the Dean for Research Princeton University researchers have found that dopamine - a brain chemical involved in learning, motivation and many other functions - also has a direct role in representing or encoding movement. The finding could help researchers better understand dopamine's role in movement-related disorders such as Parkinson's disease. … Continue reading Dopamine neurons have a role in movement, new study finds (Nature Neuroscience)

Fruit flies adjust their courtship song based on distance (Neuron)

A fly runs on an air-supported ball. The audio traces of the fly's courtship song are shown. Article courtesy of Joseph Caputo, Cell Press Outside of humans, the ability to adjust the intensity of acoustic signals with distance has only been identified in songbirds. Research published February 3 in Neuron now demonstrates that the male … Continue reading Fruit flies adjust their courtship song based on distance (Neuron)

Revisiting the mechanics of the action potential (Nature Communications)

By Staff The action potential is widely understood as an electrical phenomenon. However, a long experimental history has documented the existence of co-propagating mechanical signatures. In a new paper in the journal Nature Communications, two Princeton University researchers have proposed a theoretical model to explain these mechanical signatures, which they term "action waves." The research … Continue reading Revisiting the mechanics of the action potential (Nature Communications)