Dopamine Signals Teach the Brain to Unlearn Fear

Summary: A new study reveals that dopamine release along a specific brain circuit helps extinguish fear by activating reward-related neurons in the amygdala. Researchers showed that dopamine from the ventral…

How Conscious Thought Fades Under Anesthesia

Summary: A new study has shown that conscious thought relies on synchronized brain rhythms to maintain communication between sensory and cognitive brain regions. Under general anesthesia, this rhythm-based communication breaks…