[Single interneuron coordinates wing and tail movements in pteropod mollusk].

Area of Science:

• Neuroscience
• Animal Behavior
• Marine Biology

Context:

• Vertebrates possess known nervous centers for coordinating movement and stabilization.
• The marine mollusk Clione limacina offers a simple model for studying fundamental biological processes.

Purpose:

• To identify a specific interneuron responsible for postural control during locomotion in Clione limacina.
• To elucidate the functional role of the CPB3c interneuron in integrating sensory and motor information.

Summary:

• A single identified interneuron, CPB3c (cerebropedal neuron c from group B3), was found to control postural stability during locomotion in Clione limacina.
• CPB3c integrates sensory input from statocysts with signals from the locomotor generator.
• This interneuron then transmits integrated signals to tail motorneurons, coordinating movement and stabilization.

Impact:

• This research identifies a key neural circuit for postural control in a simple invertebrate model.
• Findings contribute to understanding the evolution of motor control and body stabilization mechanisms.
• Highlights the conserved role of interneurons in coordinating complex behaviors across different animal groups.