Circuitry of fear identified

Neurobiologists have identified, for the first time, clearly defined neural circuits responsible for the processing of fear states. These findings could ultimately help people suffering from post-traumatic stress disorder or anxiety disorders. Fear arises in the almond-shaped brain structure known as the amygdala. It is the amygdala which processes the strange noise, shadowy figure or scary face and not only triggers palpitations or nausea but can also cause us to flee or freeze. That much has long been known about the function of this part of the brain. What remains largely unclear, however, is precisely how fear develops, and which of the countless neurons in the amygdaloid region are involved in this process. But finding answers to these questions is vital for those who wish to improve the quality of life for people suffering as a result of traumatic experiences.