Neuroscience of fear

The neuroscience of fear involves a network of brain regions that detect threats and trigger responses. The amygdala is central, acting as an alarm system that processes danger signals. When a threat is perceived, the amygdala activates, signaling other parts of the brain and body to prepare for a "fight or flight" response, releasing stress hormones like adrenaline. The prefrontal cortex helps regulate and interpret these signals, enabling us to distinguish real threats from false alarms. This complex system evolved to protect us but can sometimes produce exaggerated fear responses in anxiety disorders.