Synesthesie

Neuroscience has shown that our olfactory system is directly connected to the areas of the brain responsible for emotions and memory. Unlike the other senses, which must pass through various levels of processing, smell has privileged access to the limbic system—the beating heart of our emotions and deepest memories. A fragrance can instantly evoke a forgotten memory, awaken dormant sensations, transport us to distant places, or make us relive intense emotions. This is because scent molecules, once inhaled, stimulate the olfactory bulb, which in turn communicates directly with the amygdala and