Mouse study finds that fearlessness can be learned

The neurotransmitter serotonin plays a key role in both the onset and in the unlearning of fear and anxiety. A research team from the Department of General Zoology and Neurobiology headed by Dr. Katharina Spoida and Dr. Sandra Süß in the Collaborative Research Center “Extinction Learning” at Ruhr University Bochum, Germany, has been investigating the underlying mechanisms.